Allen-Bradley 1771-P7 Power Supply Module

The Allen-Bradley 1771-P7 Power Supply Module is a stand-alone AC input power supply that provides 5 V DC backplane power to a PLC-5 or 1771 I/O chassis. It accepts a nominal 120/240 VAC input and supports 97–132 VAC or 195–264 VAC input ranges, with a frequency range of 47–63 Hz. The module delivers up to 108 W of real input power and up to 176 VA of apparent power, with a backplane output current rated at 16 A at 5 V DC. It uses a 3 A, 250 V normal-blow fuse and offers local and remote cabling options (1771-CP1 local, 1771-CP2 remote 5 ft, 1771-CP3 remote 5 ft). The 1771-P7 is designed for standalone use and measures 4.5 x 12.4 x 6.3 inches (115 x 317 x 160 mm). It can power one 1771-A1B, -A2B, -A3B, -A3B1, or -A4B I/O chassis when used with an appropriate adapter module or PLC-5 processor that does not supply its own internal power.