1746-P7 | SLC 500 Allen-Bradley Power Supply Module

Overview
The 1746-P7 by Allen-Bradley is a reliable DC power supply designed for the SLC 500 automation platform. It delivers stable voltage to the chassis, ensuring consistent performance for processors and I/O modules under varying load conditions.

Technical Specifications

• Brand & Model: Allen-Bradley 1746-P7

• Product Type: SLC 500 DC Power Supply

• Product Line: SLC 500

• Module Type: Power Supply

• Input Voltage Range: 10–30 V DC

• Input Power: 50 VA (12V input), 75 VA (24V input)

• Inrush Current: 20 A required for initial turn-on

• Internal Current Capacity:

• 12 V DC input: 2.0 A at 5 V DC, 0.46 A at 24 V DC

• 24 V DC input: 3.6 A at 5 V DC, 0.87 A at 24 V DC

• CPU Hold-Up Time:

• 12 V input: 1.37 ms (full load, 0 V), 895 ms (no load, 0 V)

• 24 V input: 40 ms (full load, 0 V), 1860 ms (no load, 0 V)

• Backplane Current (24 V): 0.46 A

• Operating Frequency: 47–63 Hz

• Operating Temperature: 0–60°C

• Fuse Protection: 1746-F1 or equivalent

• Location: Installed in 1746 chassis

• Weight: 2.19 lbs (0.99 kg)

Features

• Provides DC power for SLC 500 processor and I/O modules

• Supports full operational hold-up for transient load conditions

• Compact design for easy installation in 1746 chassis

Applications
Ideal for powering SLC 500 PLC systems in manufacturing, process control, and automation panels.

FAQ

Q: Can the 1746-P7 handle 24V input?
A: Yes, it supports 10–30 V DC input, including 24 V DC at full load.

Q: What is the maximum power output?
A: Up to 75 VA at 24 V DC input.

Q: Does it require a special fuse?
A: Yes, a 1746-F1 or equivalent fuse is recommended.