Siemens / Cerberus Pyrotronics Thermal Detector DT-200F 500-019617 *New*

Description: Product Overview The Siemens Building Technologies ─ Fire Safety Division Thermal Fire Detectors are fixed temperature or a combination of fixed-temperature / rate-of-rise type. The combination detectors consist of two, independently operated thermal elements. The rate-of-rise element is self- restoring. However, the fixed temperature is of the non-restoring type. Underwriter’s Laboratories, Inc., recommends the combination-type thermal detector be used to protect a maximum of 2,500 square feet (50-foot spacing), and the fixed-temperature type be used to protect a maximum of 625 square feet (25-foot spacing). However, job conditions and engineering judgment often dictate closer spacing to provide faster detection. The thermal fire detector shall be Fire Safety Model ____ (insert number), and shall operate at a temperature of ____°F (insert temperature). The detectors shall be listed by Underwriters’ Laboratories, Inc. and Factory Mutual for use with Siemens Building Technologies, ─ Fire Safety Division systems. s Industry, Inc. Building Technologies Division Specifications Rate-of-Rise Principle of Operation The rate-of-rise element consists of an air chamber; a flexible, metal diaphragm and a moisture-proof, trouble-free vent that is carefully calibrated. It is well known air expands as it is heated, and will contract as it is cooled. For normal, day-to- day fluctuations of temperature, the expansion and contraction of the air within the chamber is automatically compensated by the ‘breathing’ action of the vent. However, when a fire occurs, air temperatures rise very rapidly and the air in the chamber expands faster than it can be vented. This creates a pressure which distends the diaphragm and closes electrical contacts. The rate-of-rise action is not related to any fixed temperature level, but responds with the utmost promptness when the rate of temperature rise exceeds 15°F per minute. If the heat is removed, the air within the chamber contracts and the switch moves to a normally open circuit position.

Price: 42 USD

Location: Jersey City, New Jersey

End Time: 2024-01-30T22:45:03.000Z

Shipping Cost: N/A USD