Description
These detectors are combination Rate-of-Rise and Fixed Temperature,(sometimes referred to as “Dual Action”), incorporating wire leads that are connected to the internal set of Normally CLOSED contacts, and a seal plate to prevent moisture from damaging the unit. The normally closed contacts will open when the ceiling temperature increases at a (minimum) rate of 8.4 Celsius degrees (15 F. degrees) per minute. If the detector operates on its Rate-of-Rise only, the detector will reset as it cools.