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Wall Mounting Dc-UPS Compliant with EN54-4 Fire Detection & Fire Alarm System
en54-4 dc-ups Wall mounting unit with a CBI DC-UPS, combined Power Supply & Battery Charger, and a battery rated to match the power required. The CBI is available for use on a 12, 24 or 48V DC system with either a 1.2 , 3 , 7 or 12 Ah load. There is a separate output for the DC load when the mains is present and a constant battery charging feed. Upon Mains Failure the SPF54-4 seamlessly switches to battery operation. The SPF54-4 is compliant to EN54-4 and has three charging levels: Boost, Trickle and Recovery, Protection against short circuit and inverted polarity, Signal output (contact free) for discharged or damaged battery and Modbus. en54-4 dc-ups
 
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