- UL and ULC Listed
- Combination rate-of-rise and fixed temperature operation
- Operates when ceiling temperature reaches 135°F (57°C)
- Normally open (NO) contacts
- Terminal bar with screws for easy wiring
The CR-135W is a combination rate-of-rise and fixed temperature detector. The fixed temperature portion consists of a spring-loaded plunger retained by a fusible alloy that releases when the ceiling temperature reaches 135°F (57°C). When released, the plunger strikes a normally open set of contacts and holds them closed.