1746-P2 | Allen-Bradley SLC 500 Power Supply Module

Overview

The Allen-Bradley 1746-P2 is a compact power supply designed for SLC 500 PLC systems. It delivers stable DC output for both backplane and connected modules, supporting reliable operation across industrial automation environments. Its efficient design provides full load power while maintaining low thermal dissipation.

Technical Specifications

• Model / Part Number: 1746-P2

• Brand: Allen-Bradley

• Product Type: Power Supply Module, SLC 500

• Module Weight: 1.38 lbs (0.62 kg)

• Input Power: 70 Watts

• Input Voltage Range: 120–220 V AC

• Typical Line Power Requirement: 180 VA

• Inrush Current: 20 Amps

• Backplane Current: 5 V DC: 5 A, 24 V DC: 0.46 A

• Internal Current Capacity: 5 A at 5 V DC; 0.96 A at 24 V DC

• Output Voltage Range: 18–30 V DC

• CPU Hold-Up Time: 20 ms at full load, 3000 ms at no load

• Operating Frequency: 47–63 Hz

• Operating Temperature: 0–60 °C

• Fuse Protection: 1746-F1 or equivalent

• Chassis Location: Fits standard 1746 series racks

Applications

• Provides reliable DC power for SLC 500 PLC racks

• Supports multiple I/O modules and backplane circuits

• Ideal for industrial automation, process control, and manufacturing environments

• Compatible with legacy and modern SLC 500 modules

FAQs

Q1: Can this supply power multiple modules simultaneously?
Yes, the 1746-P2 supports full load for typical 1746 series I/O modules.

Q2: What is the hold-up time for the CPU during a power fluctuation?
20 milliseconds at full load and up to 3000 milliseconds when no load is applied.

Q3: What input voltages are supported?
It operates on 120–220 V AC with 47–63 Hz frequency.