PA 48VDC12A EN54-4 akumuliatoriaus įkroviklis ir atsarginis maitinimo šaltinis 48V 12A / 24VDC

When a voice-evacuation or public-address system must keep working through a mains failure, the power source can't be an afterthought. The Proel 48VDC12A is an EN54-4 battery charger and back-up power control system that keeps a commercial-audio installation alive on its own reserve batteries the instant the AC supply drops. In normal operation its integrated charger maintains and supervises an external 48V battery bank (up to 150 Ah, batteries not supplied); on mains loss it hands the load straight over so every connected device continues running on 24VDC with no interruption. Just as importantly, it watches both the mains and battery circuits continuously and reports power status and any fault back to the system, so a developing problem is flagged before it becomes a silent failure during an emergency. Built to the EN54-4 standard for fire-detection and voice-alarm power supplies, it is the dependable power backbone for EN54 evacuation and PA projects.

Features

• EN54-4 compliant power supply for fire-alarm and voice-evacuation systems - the standard certifiers ask for
• Seamless mains-to-battery changeover keeps the whole system running on 24VDC when AC power fails
• Integrated charger maintains an external 48V reserve battery bank up to 150 Ah (batteries not supplied)
• Continuous supervision of both mains and battery circuits, with power-status and fault reporting to the system
• Built for permanent commercial-audio and EN54 EVAC installations where downtime is not an option