Allen-Bradley SLC 500 1746-P1 Power Supply

Overview

The 1746-P1 is a power supply module for the SLC 500 system. It provides necessary power for the backplane and connected modules, with output voltages of 5VDC and 24VDC.

Key Specifications

• Input Voltage: 120 to 220 Volts AC
• Input Power: 42 Watts
• Output Voltage Range: 18 to 30 Volts DC
• Output Current (5V): 2A
• Output Current (24V): 0.46A
• Frequency: 47 to 63 Hz
• Backplane Current (5V): 2A
• Backplane Current (24V): 0.46A
• Fuse Protection: 1746-F1 or equivalent
• Dimensions: 5.5 x 2.3 x 5.7 inches
• Weight: 2 lbs (0.9 kg)

Power and Protection

• Inrush Current: 20A
• User-Power Capacity: 200mA at 24VDC
• Overcurrent Protection: 15A
• Isolation: 1800V AC RMS for 1 second
• Temperature Range: 0 to 60°C
• Derating: 5% current capacity above 55°C

Operation Features

• CPU Hold-Up Time:
  • 20ms (full load)
  • 3000ms (no load)
• Undervoltage Behavior:
  • Power continues briefly
  • Stops supplying if below the operating range for too long

Installation

• Location: Installed in the 1746 chassis
• Mounting: Only one power supply needed per chassis
• Precautions: Set input jumper before applying power to avoid hazardous voltage exposure

Additional Information

• Series: SLC 500
• Part Number: 1746-P1
• Brand: Allen-Bradley
• Manufacturer: Rockwell Automation