Pulsar HPSB-12V3A-C 12V 3A 18Ah Switched-mode Power Supply HPSB-12V3A-C Application The HPSB-12V3A-C switched-mode buffer power supply is designed to provide uninterrupted power to devices requiring a stabilized voltage of 12 V DC (15%). In the event of a mains power outage, it immediately switches to battery power. The power supply is designed based on high-energy-efficient switched-mode power supply modules, housed in metal enclosures (RAL 9003) with space for the battery(ies). The enclosures are equipped with a microswitch signaling door opening (tamper). The power supply should be installed in enclosed spaces, in accordance with environmental class II, with normal air humidity (RH 90% maximum non-condensing) and a temperature in the range of -10°C to +40°C. The power supply should operate in a vertical position ensuring free convection air flow through the housing ventilation holes. Technical data: Manufacturer: PULSAR; Product type: Buffered, switched-mode power supply; Power supply type: Buffered; Output voltage: 12V DC; Nominal output current: 3A; Housing type: Metal; Fitting battery: 17Ah; Protections: SCP, OLP, OVP, UVP, tamper - opening the housing; Protection rating: IP 20; Dimensions: height (mm): 300; Dimensions: width (mm): 230; Dimensions: depth (mm): 82; Power supply current efficiency (A): 3; Weight: 1.7kg; About the product: Power supply: 200 240VAC. Power output: 3A/13.8VDC. Battery charging current: 0.5A. Battery: 1 x 7Ah / 1 x 17Ah. Efficiency: 87%. Dimensions: 230 x 300 x 82 +/-2 mm . Distance from ground: 8 mm. Protections: SCP, OLP, OVP, UVP, tamper indicating enclosure opening. Closing: screwed (lock can be mounted). Mounting: surface mounted. Signaling: LED optical signaling. Material: sheet DC01, 0.7 mm, RAL9003 (white), metal. Ingress protection: IP 20. Uninterrupted power supply DC 13.8 V; 27.6 V or 54 V . High efficiency (up to 90%) . Battery charging and maintenance control . LED optical signaling . Battery output protection against short circuit and reverse connection . Manufacturer code: HPSB-12V3A-C .