Allen-Bradley 1771-P7 Power Supply Module

Allen-Bradley 1771-P7 Power Supply Module is a stand-alone AC power supply for PLC-5 1771 I/O chassis. It powers a single 1771-A1B, -A2B, -A3B, -A3B1, or -A4B I/O chassis when the host controller lacks an internal power supply. It accepts 120 or 220 VAC input (nominal) with an input range of 97–132 VAC or 195–264 VAC and 47–63 Hz. It delivers 16 A backplane current at 5 V DC to the I/O backplane; real input power up to 108 W; apparent power up to 176 VA; transformer load up to 270 VA. A 3 A, 250 V normal-blow fuse protects the unit, with local (1771-CP1) and remote (1771-CP2, 1771-CP3) cabling options. Dimensions are 4.5 x 12.4 x 6.3 inches, and its design is for stand-alone installation in PLC-5 systems.