The standard THERMOFLEX™ heat detector connects to a fire alarm system’s input circuit as an initiating device. In heat detectors with Normally Open internal contacts, the contacts will close when the detector operates either on a rate of temperature increase, or if the releasing temperature is reached. In heat detectors with Normally Closed contacts, the contacts will open under the same conditions. The Rate-of-Rise function is recommended in conjunction with sprinkler devices as the detector will initiate and alarm before the waterflow switch.
With its non-metallic diaphragm, the standard detector can operate normally at low temperatures, making it suitable for non-heated or chilled environments including garages and carports. It is often installed with an addressing module if it is to be annunciated as a specific room or space, e.g. electrical room, garbage compactor, etc.
These units are single circuit with normally open contact configuration. They are available with an Aluminum or White finish
Detector with Normally Open contacts, in which the connectivity is modified with pigtail leads that extend through a seal plate, providing enhanced protection against corrosive and moisture-laden environments.
The EWT Series of THERMOFLEX heat detectors for fire alarm systems are Explosion proof, Weather proof, Water-tight and Dust-tight.
These units are single circuit with normally open contact configuration. They are available with an Aluminum or White finish
Detector with Normally Closed contacts, in which the connectivity is modified with pigtail leads that extend through a seal plate, providing enhanced protection against corrosive and moisture-laden environments.
