Buffer power supply system for PoE switches, SWB-300 is designed for uninterrupted power supply of PoE switches with 54 V DC. It was designed based on high energy efficiency switching power supply module placed in metal enclosure (color RAL 9003). Enclosure has a place for 4 pcs of 17 Ah / 12 V (SLA) battery and is equipped with a tamper switch signaling opening the door (front panel). Device is equipped with removable universal mounting plate, which allows to mount PoE switches with dimensions up to 245x150x90 (WxHxD) [mm]. For example Pulsar’s models: S64, SG64, SFG64, SFG64F1, S108, SG108, SF108. Power supply: 200÷240VAC. Power supply output: 54VDC/300W, power cable included - JACK 5,5 / 2,1. Battery charging current: 0.5A/1A/2A. Battery: 4 x 7Ah / 4 x 17Ah. Efficiency 87%. Dimensions: 460 x 390 x 173 [+/-2 mm], distance from floor: 8 mm. Mounting plate: blacha (BM1), 245 x 150 [+/-2 mm]. Protections SCP, OLP, OVP, UVP, OHP, tamper – opening of enclosure. Closing: bolted (lock assembly possible). Indication: LED optical indication. Material: sheet metal DC01, 1mm, RAL9003 (white), metallic.