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The Edwards Signaling Heat Detector 125V DC is a fixed temperature heat detector designed for open area protection. It has a 135°F/57°C fixed temperature rating and is UL Listed. This heat detector operates on a thermistor sensing element and dual electronic thermostats to sense rate-of-rise in accordance with UL 521. It can be used in duct applications up to 2000 FPM air velocity. The operating voltage range is 6 to 32 VDC. This Edwards heat detector provides open area protection with rate-of-rise and fixed temperature detection. It is UL Listed and operates on 6-32 VDC.
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