OVERVIEW

Official designation: Allen-Bradley 1746-P1 (SLC 500, AC Power Supply)

The 1746-P1 is the standard AC power supply module for the SLC 500 chassis, providing regulated 5V DC and 24V DC power to all modules installed on the backplane.

KEY SPECS SUMMARY

Power: Input 120/220V AC, Output 2 A at 5V DC

Interfaces / Ports: Terminal block for AC input

Indicators: Power Status (LED)

Operating Temp: 0 to 60 degrees C

Platform / Compatibility: SLC 500 chassis/backplane

Limit: 5V DC at 2 A; 24V DC at 0.46 A

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the two primary DC output ratings supplied by the 1746-P1 power supply module?

A: It supplies 5V DC at 2 A and 24V DC at 0.46 A to the backplane.

Wiring & Installation:

Q: What function does the internal fuse perform on the 1746-P1 power supply unit?

A: The fuse provides protection against input line surges and sustained overcurrent conditions.

Troubleshooting & Compatibility:

Q: If the Power Status LED is off, what is the first step in troubleshooting the 1746-P1?

A: Verify the presence of the specified 120V AC or 220V AC input voltage at the terminal block.

Replacement & Upgrades:

Q: Is the 1746-P1 functionally interchangeable with other Allen-Bradley SLC 500 power supplies?

A: The module is interchangeable with other 1746 power supplies, provided current draw limits are met.