Potter Electric Signal Co. Us 1000139 Heat Detector 200F

Product Description

The POTTER ELECTRIC SIGNAL CO. US 1000139 is a rate-of-rise heat detector rated for 200 degrees F fixed-temperature response with weather-proof construction. Rate-of-rise detectors respond to rapid increases in ambient temperature, triggering an alarm before a space reaches a preset threshold — making them a core component in fire detection systems where smoke detectors are not suitable. This unit is sold individually and is intended for installation by licensed fire alarm technicians or qualified contractors working on commercial or industrial fire accessory circuits.

Rate-of-rise heat detectors are commonly installed in areas subject to dusty, steamy, or fume-laden environments where smoke detection would produce nuisance alarms. The weather-proof housing on this unit makes it appropriate for semi-exposed or outdoor-adjacent applications such as loading docks, parking structures, and mechanical rooms. The 200 degrees F rating identifies the fixed-temperature threshold at which the detector will activate regardless of the rate of temperature rise.

Key Features

• Rate-of-rise detection responds to rapid ambient temperature increases
• Fixed-temperature threshold rated at 200 degrees F
• Weather-proof housing suitable for semi-exposed environments
• Single-unit packaging for individual replacement or new-circuit installation
• Classified under fire accessories for commercial and industrial fire detection systems

Compatibility

Designed as an OEM-style replacement or new-installation heat detector for fire alarm systems requiring rate-of-rise detection at a 200 degrees F threshold. No specific compatible system models were identified in the available product data.

Installation Notes

Installation should be performed by a licensed fire alarm technician in accordance with NFPA 72 and applicable local fire codes. De-energize the fire alarm control panel circuit before connecting or disconnecting the detector. Follow the manufacturer wiring diagram and jurisdiction-required inspection procedures after installation. Do not install in areas where ambient temperatures regularly approach the 200 degrees F rated threshold, as this can cause nuisance activations or reduce detector service life.