Lifesafety Power RD75-8 Rack Mount DC Power Supply
Overview
The RD75-8 is a rack-mount DC power supply designed to distribute regulated power to egress locking devices in access control and intrusion mitigation systems. It operates in two configurable modes — 12VDC @ 6A or 24VDC @ 3A — allowing you to match the supply voltage to your lock hardware without field conversion. The eight dedicated egress lock outputs eliminate the need for external relay banks when controlling multiple electronic strike locks, magnetic locks, or request-to-exit (RTE) devices in a single enclosure.
Compatibility
The RD75-8 integrates with access control systems that require regulated DC power distribution to field devices. It pairs with standard 19-inch rack infrastructures and works alongside conventional and networked access control panels. Confirm your lock hardware voltage specification (12V or 24V) before ordering — the unit must be selected to match your installed devices, not reconfigured after deployment.
Installation Notes
Mount horizontally in a standard 19-inch equipment rack. The dual-voltage design is factory-set; select the correct voltage variant for your deployment — 12V units cannot be field-converted to 24V. Egress outputs are screw-terminal connections; wire egress devices using appropriate gauge conductors sized for the per-output current draw. Consult your access control access control integration guide for supervision wiring, relay feedback, and battery backup requirements if your system mandates UPS redundancy.
When to Choose a Different Model
If your deployment requires more than eight independent egress circuits, or if you need integrated battery backup for fail-safe operation during power loss, evaluate higher-capacity models in the Lifesafety Power line or consider a standalone UPS paired with a lower-output supply. If your lock infrastructure is mixed voltage (some 12V, some 24V), you will need separate units — this supply is single-voltage only.
