OVERVIEW

Official designation: Allen-Bradley 1746-P3 (SLC 500, DC Power Supply)

The 1746-P3 is a direct current power supply module for the SLC 500 chassis, accepting 24V DC input to provide regulated 5V DC and 24V DC output power to the backplane.

KEY SPECS SUMMARY

Power: Input 19.2-28.8V DC, Output 3.6 A at 5V DC

Interfaces / Ports: Terminal block for DC input

Indicators: Power Status (LED)

Operating Temp: 0 to 60 degrees C

Platform / Compatibility: SLC 500 chassis/backplane

Limit: 5V DC at 3.6 A; 24V DC at 0.87 A

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum guaranteed load current supplied by the 1746-P3 at 5V DC?

A: The power supply guarantees a maximum output of 3.6 A at 5V DC to the backplane.

Wiring & Installation:

Q: What is the acceptable nominal input voltage range for the DC power supply 1746-P3?

A: The acceptable input range for the 1746-P3 is 19.2 to 28.8V DC.

Troubleshooting & Compatibility:

Q: What does a continuously illuminated red Fail LED on the module indicate?

A: An illuminated green LED confirms that the module is receiving valid DC input power and functioning correctly.

Replacement & Upgrades:

Q: Are there any direct functional replacements for the discontinued 1746-P3 DC power module?

A: Refer to the latest manufacturer manual for alternative 1746 DC power supplies or migration paths.