The Allen-Bradley 1746-P2 is a modular, rack-mounted power supply designed specifically for the SLC 500 programmable controller system. It serves as the primary power source for the chassis, converting AC line voltage into the regulated DC voltages required by the CPU, I/O modules, and communication adapters. This unit is engineered to provide stable power output, ensuring reliable operation of the controller even during minor fluctuations in the supply line.
| Model | 1746-P2 |
| Input Voltage | 85-132V AC / 170-265V AC (Selectable) |
| Frequency | 47-63 Hz |
| Output (5V DC) | 5A |
| Output (24V DC) | 0.96A |
| Typical Line Power | 180 VA |
| Inrush Current | 20A |
| Operating Temperature | 0 to 60 degC |
| Enclosure Type | Open-type |
The Allen-Bradley 1746-P2 is a legacy, rack-mounted power supply for SLC 500 PLC systems, providing 5V DC (5A) and 24V DC (0.96A) power.
It supports dual voltage operation: 85–132V AC or 170–265V AC (47–63 Hz).
A jumper wire loop located near the AC input terminal block must be configured for either 120V or 220V operation before the unit is energized.
Yes, it is a compatible replacement. The 1746-P2 provides higher output current (5A vs 3.6A at 5V) compared to the 1746-P1.
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