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OVERVIEW
Official designation: Allen-Bradley 1746-P2 (SLC 500, AC Power Supply)
This modular AC power supply for the SLC 500 rack provides 5A at 5V DC and 0.96A at 24V DC to the backplane, ensuring stable operation for SLC modules from a wide AC input voltage range.
KEY SPECS SUMMARY
Power: 5A at 5V DC; 0.96A at 24V DC
Interfaces / Ports: Terminal screws, 2 x 14 AWG max
Indicators: Power status LED
Operating Temp: 0 to 60 degrees C
Platform / Compatibility: SLC 500 chassis
Limit: 200 mA at 24V DC user power
Lifecycle: Active/Legacy
FREQUENTLY ASKED QUESTIONS
Technical Specifications:
Q: What is the input voltage range of the 1746-P2 power supply when the jumper is set for high voltage?
A: The input voltage range is 170 to 265 Volts AC at 47 to 63 Hertz.
Wiring & Installation:
Q: What is the maximum size of wire that can be terminated to the power supply terminals?
A: The power supply terminals can accept a maximum of two #14 AWG wires per terminal.
Troubleshooting & Compatibility:
Q: What is the power supply hold-up time during a full load power loss event?
A: The CPU hold-up time is 20 ms at full load, preventing immediate system failure.
Replacement & Upgrades:
Q: Which fuse is recommended for line voltage protection of the 1746-P2 power supply module?
A: The recommended fuse protection is the 1746-F2 or an equivalent 250V, 3A fuse.
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