The PBB2S 3.5A is an off-line battery chargers / DC uninterruptable power supplies which operate from 100-240Vac mains power. When connected to a valve regulated lead-acid (VRLA) battery, these units provide uninterrupted power to a DC load in the event of mains failure.
The PBB2S Series contains a two-step current limited float charger, output overcurrent and short circuit protection, a self-resetting battery fuse, overtemperature protection, and mains DC OK battery OK and battery fuse fail alarms.
The PBB2S is available in a light weight corrosion resistant aluminium chassis mount enclosure. Both models employ natural convection cooling. The PBB2S series is for indoor use only.
12VDC 3.5A power supply with battery backupHigh reliability and high efficiencyIndustrial-grade switching power converterLight weight corrosion resistant aluminum enclosureOutput over current and short circuit protectionSeparate current-limited battery charging outputOutput over voltage protectionSelf-resetting battery fuseOver temperature protectionMains OK / DC OK - Green LED and alarm contactGreen Battery OK - Green LED and alarm contactBattery Fuse Fail - Red LED