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Liftmaster CPS-UN4 Commercial Protector System
Liftmaster CPS-UN4 Commercial Protector System
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Liftmaster CPS-UN4 Commercial Protector System

Item Id: LM-CPS-UN4
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Your Price: $233.58
Liftmaster CPS-UN4 Commercial Protector System

Liftmaster CPS-UN4 Commercial Protector System (CPS-UN4) provide primary monitored entrapment protection for LiftMaster’s Commercial Door Operators. The heavy–duty metal housing and brackets are durable and weatherproof and can be used for indoor or outdoor applications. Our photoelectric eyes and edge sensor models are UL/cUL Listed for use with all LiftMaster Commercial Door Operators. The CPS-UN4 can be used as a primary and/or ancillary entrapment device and meets UL 325 2010 safety standards.

• Heavy-duty housing for industrial applications
• NEMA 4 enclosure protects against direct spray
• Dual-sided infrared sensors
• For indoor/outdoor use
• Maximum range of 45 feet
• Solid sensor lights indicate correct sensor alignment
• Yellow safety housing provides visibility for industrial environments

Liftmaster CPS-UN4 Commercial Protector System is compatible with UL 325 that requires all commercial door operators to be either constant pressure to close or be equipped with a primary external monitored entrapment protection device. The CPS-UN4 meets this requirement. Failure to use the appropriate sensor or failure to install the sensor properly, may expose the installer and customer to liability, should an accident occur.


Standard Specifications

- Length: (54mm/2.125").
Width: (44mm/1.75") .
Height: (94mm/3.625").


- Height: 4.125".
- Width: 7.875".
- Length: 7".
- Weight: 2.6 lbs.

One year limited warranty.

Technical Specifications

Technical Data Range
Version: 13.7m/45ft.

Outdoor Rating
IP67, NEMA 4

Temperature Range
-20C° to +65C, -4F° to +149F°

Terminal Interface
2-wire, monitored, (polarized), 2.75ft.

1 Emitter, 1 Receiver

Yellow LED

Green LED

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