PS04 - 24Vdc 4.5 Amp Power Supply/Fire Relay (PSU)
24Vdc 4.5 Amp Power Supply/Fire Relay
This continuously rated power supply is shipped with a fire relay by default.
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All power supplies, when used with access controllers, switch power at the electrified lock when an authorized code, card, tag or fob is presented at the secure side of the door. Fail secure (FSE) locks require power to be switched on to release the lock. Fail safe (FS) locks require that power is switched off. Both functions are provided via an Entry Relay. Relcross will provide the correct entry relay to suit the access controller being used. However, if we are not providing the controller it is important that we know the output of the controller at the outset.
- Over Current Protection
- Short circuit protection
- Thermal overload protection
- Constant voltage regulation
- Mains failure or low battery voltage warning, user selectable
- Fire relay interface to fire alarm system
- Enclosure door 3 LED status indicators
- PCB mounted engineering status LED indicators, show: Over Current & Fire Alarm Relay Status
- Battery management electronics providing: Low Voltage Trip (to disconnect battery and extend battery life) & Reverse Battery Polarity Protection
- 3 fused outputs relay (FR) switched and 1 fused non-switched output all with blown fuse indication by LED
- Thermostatically controlled cooling fan - cuts in at high load
- Cabinet dimensions in mm: 465mmH * 255mmW * 90mmD
The PS0 series of power supplies & transformers is manufactured by Relcross specifically for use with access control & door control hardware. Our power supplies can be used with any manufacturers’ electrified locks and accessories so long as the rating and operational expectations are checked carefully.