System Sensor 5624 Dual-Circuit Fixed Temperature Heat Detector

Overview

The System Sensor 5624 is a dual-circuit fixed temperature heat detector designed for integration into fire alarm and life safety systems. Operating at 35VDC, the 5624 provides thermal sensing that triggers at a preset temperature threshold — eliminating the need for sensitivity adjustment in applications where a consistent, fixed activation point is required. This detector fits conventional fire alarm networks where you need reliable thermal detection without the complexity of variable-threshold or rate-of-rise models.

Compatibility

The 5624 integrates with fire alarm control panels and building automation systems supporting conventional detector wiring. The dual-circuit design allows connection to standard fire alarm loops, enabling the detector to communicate alarm and supervisory states across distributed fire safety networks. Compatible with fire alarm systems using conventional four-wire or two-wire wiring topologies common in commercial and industrial installations.

Installation Notes

The 5624 requires 35VDC power supplied by the fire alarm control panel. Mount the detector on a flat surface or ceiling per fire code spacing requirements — typical placement in areas prone to heat (mechanical rooms, kitchens, warehouses) where smoke detection would trigger false alarms. Ensure wiring runs comply with NEC fire alarm cabling standards. No external power supply or special configuration is required beyond standard fire alarm panel output.