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Allen-Bradley 1746-P2 Power Module

Product Description

The 1746-P2 is an AC-input power supply module designed for Allen-Bradley SLC 500 series PLC systems. It provides 5V DC (5A) and 24V DC (0.96A) outputs to power SLC 500 controllers, I/O modules, and communication interfaces. This module is known for its reliability, efficiency, and robust industrial design, making it suitable for harsh automation environments .

Key Features

Wide Input Voltage Range
- 85–132V AC or 170–265V AC (47–63 Hz), compatible with global power standards .
- Dual-range input (selectable via jumper) for flexibility in different power grids .
High Power Capacity
- 5V DC @ 5A (backplane power) and 24V DC @ 0.96A (I/O power) .
- 180VA typical power demand with 20A max surge current .
Robust Protection
- Built-in fuse (250V-3A) for short-circuit and overcurrent protection .
- Isolation voltage: 1,800V AC RMS (1 sec) for enhanced safety .
Industrial Durability
- Operating temperature: 0°C to +60°C .
- IP20-rated enclosure (requires protective cabinet for dusty/wet environments) .
Compatibility
- Designed for SLC 500 series chassis (e.g., 1746-A10) .
- Supports hot-swapping (RIUP compliant) for minimal downtime .

Technical Specifications

Parameter	Value
Model	1746-P2
Input Voltage	85–132V AC / 170–265V AC (47–63 Hz)
Output Voltages	5V DC (5A), 24V DC (0.96A)
Power Consumption	180VA (typical)
Dimensions	74 × 140 × 145 mm
Weight	0.72–1.1 kg (varies by series) .

Applications

Factory Automation: Powering SLC 500 PLCs in production lines .
Process Control: Reliable power for valves, pumps, and sensors .
Infrastructure: Used in power plants and water treatment systems .

Installation & Usage Notes

Wiring
- Use shielded cables for noise immunity .
- Ensure proper grounding to avoid EMI interference .
Configuration
- Set input voltage jumper to match local power supply (100/120V or 200/240V) .
Maintenance
- Replace fuses only with SANO SOC SD4 or BUSSMANN AGC 3 equivalents .
- Monitor LED indicators for fault diagnostics .