System Sensor R-24T 4-Gang DPDT Relay with Tamper
Overview
The System Sensor R-24T is a 4-gang DPDT relay module engineered for multi-door access control and fire alarm system integration. Each independent gang provides double-pole, double-throw relay switching at 10A across 125/250 VAC loads — sufficient for strike plates, solenoid locks, and auxiliary control circuits in commercial security installations. The integrated tamper protection detects unauthorized module access or removal, critical where system integrity audit trails are required. Operates on 24 VDC panel supply, making it compatible with standard security control voltage rails.
Compatibility
The R-24T integrates with fire alarm control panels and security access control systems that provision 24 VDC auxiliary relay outputs or dedicated relay module slots. Typical deployments pair the R-24T with conventional alarm control panels supporting Form C relay expansion, and with access control platforms requiring multi-circuit load switching for grouped door or zone control. Confirm your control panel supports a 24 VDC relay module interface before ordering — compatibility depends on your specific panel model and its relay expansion architecture.
Installation Notes
Wire the module to 24 VDC panel supply using appropriately rated terminals. The 10A @ 125/250 VAC per gang rating means you can switch standard AC loads (door strikes, magnetic locks at full 24 VAC auxiliary rail current) without separate relay staging. Each gang operates independently — do not exceed 10A per gang to avoid relay coil damage. Tamper loop wiring should be supervised by your control panel to log intrusion events. Verify your panel firmware supports tamper reporting for this module type before final commissioning.
