Chemetron 501 Fire Systems Fire / Heat Detector 125VAC / 6-28VDC / 125/250VDC

The Chemetron 501 Fire/Heat Detector is an industrial-grade thermal detection device designed to provide reliable fire protection by sensing abnormal temperature conditions. Engineered for use in fire alarm and safety systems, this detector operates across multiple voltage ranges including 125VAC, 6–28VDC, and 125/250VDC, making it highly versatile for integration into a wide range of control panels and alarm circuits. It functions as a heat-sensitive switch that activates upon detecting either a rapid rise in temperature or a fixed temperature threshold, closing the circuit to trigger alarms or safety responses. Built with durable materials and designed for dependable operation, it is suitable for harsh environments where consistent fire detection is critical. 
Key Features:
Model: 501
Multi-voltage operation: 125VAC / 6–28VDC / 125/250VDC
Heat detection via rate-of-rise and/or fixed temperature sensing
Normally open contact that closes upon activation
Rugged industrial construction for long service life
Designed for reliable fire detection and alarm activation
Suitable for harsh or hazardous environments
Applications:

This fire/heat detector is commonly used in industrial facilities, warehouses, manufacturing plants, commercial buildings, and process environments where early fire detection is essential. It is ideal for installation in fire alarm systems, safety shutdown systems, and monitoring circuits to help protect equipment, property, and personnel from fire hazards.

Weight: 9 lbs
Dimensions: 9 × 9 × 6 in