The Allen-Bradley 1746-P7 is a reliable SLC 500 series power supply module from Rockwell Automation. Designed for a 1746 chassis, it operates within a 10-30V DC input voltage range, has an internal current capacity up to 3.6A at 5V DC, and provides a steady power output with a 20ms CPU hold-up time at full load. Manufacturer Rockwell Automation Brand Allen-Bradley Part Number/Catalog No. 1746-P7 Series SLC 500 Module Type Power Supply Input Voltage Range 10-30 Volts DC Input Voltage 10...30V dc Input Power 75 or 50 Watts Typical line power requirement 12V dc input: 50VA; 24V dc input: 75VA Inrush Current 20 A (required for turn-on) Internal Current Capacity 12V dc input: 2.0 A at 5V dc 0.46 A at 24V dc; 24V dc input: 3.6 A at 5V dc 0.87 A at 24V dc Weight 2.5 pounds (1.1 kilograms( CPU Hold up time, 12 VDC input 12V dc input: 1.37 ms at 0V dc (full load) 895 ms at 0V dc (no load) 10 ms at 9V dc (full load) continuous at 9V dc (no load) CPU Hold up time, 24VDC input 24V dc input: 40 ms at 0V dc (full load) 1860 ms at 0V dc (no load) 790 ms at 11V dc (full load) continuous at 11V dc (no load) CPU Hold up time 20 ms (full load) 3000 ms (no load) Backplane Current (24 Volts) 0.46 Amps Frequency 47 to 63 Hertz UPC 10662468640883 Location 1746 Chassis Dimensions 5.5 x 3.3x 5.7 inches Operating Temperature 0 to 60 Celsius Fuse Protection 1746-F1 or equivalent Programming Software RSLogix 500