Allen-Bradley | 1746-P4| SLC 500 (1746 Series)

Product Description: Allen-Bradley 1746-P4

The Allen-Bradley 1746-P4 is a DC input power supply module for the SLC 500 system, designed to mount directly to the left side of a 1746 modular chassis. It accepts 24V DC input and provides the necessary 5V and 24V DC output voltages to power SLC 500 processor, I/O, and communication modules. This compact and reliable power supply is ideal for small automation systems requiring efficient 24V DC operation.

Key Features

• 24V DC nominal input voltage
• Provides both 5V and 24V DC outputs
• Powers SLC 500 modules installed in a 4-slot chassis
• Overload, overvoltage, and short- circuit protection
• Compact design and direct chassis mounting
• LED status indicator for power status
• No derating required over full temperature range

Technical Specifications

• Input Voltage: 19.2 – 28.8V DC (24V DC nominal)
• Inrush Current: 20 A max for 20 ms
• Output Voltage:
  • 5V DC @ 2.0 A
• Backplane Current Capacity: 2.0 A @ 5V, 0.19 A @ 24V
• Compatible Chassis: 1746-A4 (4-slot chassis)
• Operating Temperature: 0°C to 60°C
• Storage Temperature: -40°C to 85°C
• Mounting: Left end of chassis
• Certifications: UL Listed, CE, CSA, Class I Div 2, RoHS

Application Areas

• Compact control panels using 24V DC power sources
• Industrial automation systems with limited slot counts
• Machine-level control systems with localized DC power
• OEM and small-scale process automation
• Applications requiring modular expansion from a 4-slot base

Advantages

• Efficient DC-to-DC conversion with compact design
• Provides reliable power to SLC 500 modules
• Ideal for systems without AC power supply availability
• Simple installation with direct chassis connection
• Fully certified for industrial control applications