< Gemco Part Description 1980-
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Gemco Part Description Page 4

Part
Number
Product
Category
Description
1980-106-L-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-L-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Enclosure 
06 = 6 Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial or Dial Window is to be provided 
3 Year Warranty 
(14LBS)
1980-106-R-DP-TD2 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-R-DP-TD2 
Series 1980 
1 = NEMA 1 Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
DP = DPDT Switches / Double Pole Double Throw Snap Action Switches 
TD2 = Timing Dial C.C.W. Counter Clock Wise Rotation 
3 Year Warranty
1980-106-R-DP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-R-DP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 8 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(12LBS)
1980-106-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-R-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty 
(12LBS)
1980-106-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(14LBS)
1980-106-X-DP-X-S-2-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-X-DP-X-S-2-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Enclosure 
06 = 6 Independent Cams / Circuits / Switches  
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 8 screw terminals per switch 
X = No Timing Dial 
S= Straight Drive Gear Reducer 
2 = 2 to 1 Gear Ratio 
R = Right End Shaft Location
1980-106-X-DP-X-S-4-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-X-DP-X-S-4-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Enclosure 
06 = 6 Independent Cams / Circuits / Switches  
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 8 screw terminals per switch 
X = No Timing Dial 
S= Straight Drive Gear Reducer 
4 = 4 to 1 Gear Ratio 
R = Right End Shaft Location
1980-106-X-SP-R-X-S-28-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-X-SP-R-X-S-28-L 
Series 1980 
1 = NEMA 1 Rated Enclosure 
6 = 6 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boot / Seal on the Switch Plunger for additional moisture protection  
X = No Timing Dial or Dial Window is to be provided 
S= Straight Drive Gear Reducer 
28 = 1 Gear Ratio 
L = Left End Shaft Location
1980-106-X-SP-R-X-S-32-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-X-SP-R-X-S-32-L 
Series 1980 
1 = NEMA 1 Rated Enclosure 
6 = 6 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boot / Seal on the Switch Plunger for additional moisture protection  
X = No Timing Dial or Dial Window is to be provided 
S= Straight Drive Gear Reducer 
32 = 1 Gear Ratio 
L = Left End Shaft Location
1980-106-X-SP-X-R-10-R2 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-X-SP-X-R-10-R2 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No shaft extension opposite gearbox / no double shaft extension  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
R= Right Angle Gear Reducer 
10 = 10 to 1 Gear Ratio 
R1 = Right End Gear Reducer Shaft Location 1
1980-106-X-SP-X-R-5-L7 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-X-SP-X-R-5-L7 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
R= Right Angle Gear Reducer 
5 = 5 to 1 Gear Ratio 
L7 = Left End Gear Reducer Shaft Location 7
1980-106-X-SP-X-S-*-* Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-X-SP-X-S-*-* 
Series 1980 
1 = NEMA 1 Enclosure 
6 = 6 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw 
X = No Timing Dial 
S= Straight Drive Gear Reducer 
* = * Gear Ratio to be determined 
* = * Shaft Location to be determined
1980-106-X-SP-X-S-200-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-106-X-SP-X-S-200-R 
Series 1980 
1 = NEMA 1 Enclosure 
6 = 6 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw 
X = No Timing Dial 
S= Straight Drive Gear Reducer 
200 = 1 Gear Ratio 
R = Right End Shaft Location
1980-107-L-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-107-L-SP-X 
Series 1980 
1 = NEMA 1 Enclosure 
7 = 7 Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
X = No Timing Dial or Dial Window is provided
1980-107-R-DP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-107-R-DP-X 
Series 1980 
1 = NEMA 1 Enclosure 
07 = 7 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
DP = DPDT Switches / Double Pole Double Throw Snap Action Switches U.L. Listed 
X = No Timing Dial or Dial Window is provided 
3 Year Warranty 
(14LBS)
1980-107-R-SP-R-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-107-R-SP-R-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
07 = 7 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boot / Seal on the Switch Plunger for additional moisture & dust  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty
1980-107-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-107-L-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
07 = 7 Independent Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
TD1 = Timing Dial Labeled for C.W. Rotation
1980-107-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-107-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
07 = 7 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(16LBS)
1980-107-X-SP-X-S-6-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-107-X-SP-X-S-6-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
07 = 7 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial 
S= Straight Drive Gear Reducer 
6 = 6 to 1 Gear Ratio 
R = Right End Gear Reducer 
(22LBS)
1980-108-D-SD-TW1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-108-R-SP-TW1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
8 = 8 Independent Cams / Circuits / Switches  
D = Double Shaft Extension, shafts exit from both ends of the enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
TW1 = Timing Dial & Dial Window is to be provided Timing Dial Degrees Labeled for Clock Wise Rotation  
3 Year Warranty 
Dimensions, use a 9 to 12 circuit enclosure drawing  
(22LBS)
1980-108-D-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-108-D-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
8 = 8 Independent Cams / Circuits / Switches  
D = Double Shaft Extension, shafts exit from both ends of the enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial or Dial Window is to be provided 
3 Year Warranty 
(17LBS)
1980-108-L-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-108-L-SP-TD1 
Series 1980 
1 = NEMA 1 Enclosure 
08 = 8 Independent Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw Snap Action Switches U.L. Listed 
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Warranty
1980-108-L-SP-TD2 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-104-L-SP-TD2 
Series 1980 
1 = NEMA 1 Enclosure 
8 = 8 Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
TD2 = Timing Dial C.C.W. Counter Clock Wise Rotation
1980-108-L-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-108-L-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
L = Left Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(17LBS)
1980-108-R-DP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-108-R-DP-X 
Series 1980 
1 = NEMA 1 Enclosure 
4 = 8 Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
DP = DPDT Switches / Double Pole Double Throw 
X = No Timing Dial or Dial Window is provided 
1980-108-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-108-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
08 = 8 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(17LBS)
1980-108-X-DP-R-X-S-8-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-108-X-DP-R-X-S-8-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Enclosure 
08 = 08 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
R = Rubber Boot on switch plunger for moisture & dust protection  
X = No Timing Dial 
S= Straight Drive Gear Reducer 
8 = 8 to 1 Gear Ratio 
R = Right End Shaft Location 
(21LBS)
1980-108-X-DP-X-S-8-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-108-X-DP-X-S-8-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Enclosure 
08 = 08 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial 
S= Straight Drive Gear Reducer 
8 = 8 to 1 Gear Ratio 
R = Right End Shaft Location
1980-109-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-109-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
09 = 9 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(21LBS)
1980-109-X-DP-X-R-14-R1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-109-X-DP-X-R-14-R1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
09 = 9 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No shaft extension opposite gearbox / no double shaft extension  
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuits. 8 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
R= Right Angle Gear Reducer 
14 = 14 to 1 Gear Ratio 
R1 = Right End Gear Reducer Shaft Location 1
1980-110-D-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-110-D-SP-TD1 
Series 1980 
1 = NEMA 1 Enclosure 
10 = 10 Cams / Circuits / Switches 
D = Double Shaft Extension (2) from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
TD1 = Timing Dial Labeled for C.W. Rotation 
(21LBS)
1980-110-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-110-R-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
10 = 10 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty
1980-110-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-110-R-SP-X 
Series 1980 
1 = NEMA 1 Enclosure 
10 = 10 Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
X = No Timing Dial or Dial Window is provided 
(21LBS)
1980-111-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-111-R-SP-TD1 
Series 1980 
1 = NEMA 1 Enclosure 
11= 11 Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
TD1 = Timing Dial Labeled for C.W. Rotation
1980-111-R-SP-TD2 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-111-R-SP-TD2 
Series 1980 
1 = NEMA 1 Enclosure 
11= 11 Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
TD2 = Timing Dial Labeled for C.C.W. Rotation
1980-112-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-112-R-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
12 = 12 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty 
(29LBS)
1980-112-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-112-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
12 = 12 Independent Cams / Circuits / Switches  
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial or Dial Window is to be provided 
3 Year Warranty
1980-112-X-SP-R-X-S-6-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-112-X-SP-X-S-6-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Enclosure 
12 = 12 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
R = Rubber Boot / Seal on the Switch Plunger for additional moisture or dust protection  
X = No Timing Dial 
S= Straight Drive Gear Reducer 
6 = 6 to 1 Gear Ratio 
R = Right End Shaft Location
1980-112-X-SP-X-R-5-L1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-112-X-SP-X-R-5-L1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
12 = 12 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed. Switches can be wired to be a Normally Open or Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial is to be provided 
R= right Angle Gear Reducer 
5 = 5 to 1 Gear Ratio 
L1 = Left End Shaft Location, Position 1 
(36LBS)
1980-112-X-SP-X-S-4-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-112-X-SP-X-S-4-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Enclosure 
12 = 12 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial 
S= Straight Drive Gear Reducer 
4 = 4 to 1 Gear Ratio 
R = Right End Shaft Location
1980-116-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-116-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
16 = 16 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(30LBS)
1980-118-L-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-118-L-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
018 = 18 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
L = Left Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty
1980-118-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-118-R-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
018 = 18 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty
1980-118-X-SP-TD1-S-1.5-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-118-X-SP-TD1-S-1.5-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
018 = 18 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No Shaft Extension Opposite Gear Box  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
S = Straight Drive Gear Reducer 
1.5 = 1 & 1/2 to 1 Gear Ratio 
L = Gear Reducer & Shaft Extension on Left End
1980-118-X-SP-TD1-S-1.5-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-118-X-SP-TD1-S-1.5-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
018 = 18 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No Shaft Extension Opposite Gear Box  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
S = Straight Drive Gear Reducer 
1.5 = 1 & 1/2 to 1 Gear Ratio 
R = Gear Reducer & Shaft Extension on Right End
1980-1202-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1202-R-SP-TD1 
Series 1980 
12 = NEMA 12 Enclosure 
02 = 2 Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
TD1 = Timing Dial C.W. Clock Wise Rotation
1980-1203-R-SP-R-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1203-R-SP-R-TD1 
Series 1980 
12 = NEMA 12 Enclosure 
03= 3 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw Snap Action Switches 
R = Rubber Boot on Switch Plunger  
TD1 = Timing Dial Clock Wise Rotation
1980-1203-R-SP-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1203-R-SP-R-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Enclosure 
03 = Qty. 3, Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
R = Rubber Boot / Seal on the Switch Plunger for additional moisture protection 
X = No Timing Dial or Dial Window is to be provided 
3 Year Warranty
1980-1203-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1203-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Enclosure 
03 = Qty. 3, Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial or Dial Window is to be provided 
3 Year Warranty
1980-1204 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204 
Series 1980 
12 = NEMA 12 Enclosure 
4 = 4 Cams / Circuits / Switches 
= Left Hand Shaft Extension from enclosure  
= DPDT Switches / Double Pole Double Throw 
X = No Timing Dial or Dial Window is provided
1980-1204-D-DP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-D-DP-X 
Series 1980 
12 = NEMA 12 Enclosure 
4 = 4 Cams / Circuits / Switches 
D = Double Shaft Extension from enclosure  
DP = DPDT Switches / Double Pole Double Throw 
X = No Timing Dial or Dial Window is provided
1980-1204-D-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-D-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Enclosure 
04 = 4 Independent Cams / Circuits / Switches 
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure  
D = Dual (2) Shaft Extensions from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660 TD1 = Timing Dial C.W. Clock Wise Rotation 
3 Year Warranty
1980-1204-D-SPG-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model Like 1980-1204-D-SPG-R-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
D = Dual Shaft Extensions from Enclosure, 2  
SPG = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch, with Gold Plated Contacts 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boots on the Switch Plunger for additional protection from Moisture & Dust 
X = No Timing Dial or Dial Window is to be provided 
(19LBS) 1/8
1980-1204-D-SPP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-D-SPP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
D = Double Shaft Extension from enclosure. Right & Left Side  
SPP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch with Plug in Sockets 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(18LBS)
1980-1204-L-DP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-L-DP-X 
Series 1980 
12 = NEMA 12 Enclosure 
4 = 4 Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
DP = DPDT Switches / Double Pole Double Throw 
X = No Timing Dial or Dial Window is provided
1980-1204-L-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-L-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
L = Left Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(19LBS)
1980-1204-R-DP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-R-DP-X 
Series 1980 
12 = NEMA 12 Enclosure 
4 = 4 Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
DP = DPDT Switches / Double Pole Double Throw 
X = No Timing Dial or Dial Window is provided
1980-1204-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-R-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure, Dust Tight 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty
1980-1204-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(19LBS)
1980-1204-X-DP-X-S-80-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-X-DP-X-S-80-R 
Series 1980  
12 = NEMA 12 Enclosure 
4 = 4 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches, Double Pole Double Throw 
X = No Timing Dial 
S = Straight Drive Gear Reducer 
80 = 80 to 1 Gear Ratio 
R = Right End Shaft Location 
(24LBS)
1980-1204-X-SP-R-72-L1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-X-SP-R-72-L1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No Shaft Extension opposite gear box  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
R = Right Angle Drive Gear Reducer 
72 = 18 to 1 Gear Ratio 
L1 = Shaft Location
1980-1204-X-SP-X-R-6-R1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-X-SP-X-R-6-R1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure, Watertight 
04 = 4 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial 
R = Right Angle Drive Gear Reducer 
6 = 6 to 1 Gear Ratio 
R1 = Shaft Location, Right End, Shaft Position 1
1980-1204-X-SP-X-R-8-R3 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-X-SP-X-R-8-R3 
Series 1980  
12 = NEMA 12 Enclosure 
04 = 4 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw 
X = No Timing Dial 
R = Right Angle Drive Gear Reducer 
8 = 8 to 1 Gear Ratio 
R3 = Shaft Location
1980-1204-X-SP-X-S-2.2-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-X-SP-X-S-2.2-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial 
S = Straight Drive Gear Reducer 
2.2 = 2.2 to 1 Gear Ratio 
L = Left End Shaft Location
Updated on April 3rd 2019
2509 Cassens Drive
Fenton, MO 63026
Toll Free: (888) SPECTECH
Phone: (636) 537-0202
Fax: (636) 537-1405
E:mail: [email protected]