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Allen-Bradley 1771-P7 AC Power Supply Module

1. Product Description

The 1771-P7 is an industrial AC power supply module designed for Allen-Bradley PLC systems, including the PLC-5 family and Mini PLC-2 series. It provides regulated DC power to processors, adapters, and I/O modules that lack their own power supply. The module is compact and space-efficient, making it suitable for installations in tight spaces .

2. Key Features

Wide Input Voltage Range – Supports 120V AC to 480V AC input, with output configurations including 24V DC (7.2A) and 0-150V DC (15A, 750W) .
High Power Output – Capable of delivering up to 16A when used with a 1771-CT parallel cable .
Robust Protection – Includes overload, short-circuit, and over-temperature protection for reliable operation in harsh environments .
Industrial Durability – Features an aluminum frame for heat dissipation and NEMA 12-rated protection against dust and moisture .
Compatibility – Works with PLC-5, Mini PLC-2/02, Mini PLC-2/05, Mini PLC-2/16, and Mini PLC-2/17 controllers .

3. Technical Specifications

Parameter	Specification
Input Voltage	120V–480V AC
Output Voltage	24V DC / 0–150V DC
Output Current	7.2A (24V) / 15A (150V)
Power Output	Up to 750W
Operating Temp.	-20°C to +50°C (varies by model)
Protection Rating	NEMA 12 (dust/moisture resistant)
Certifications	UL, CSA, CE, GOST

4. Applications

Industrial Automation – Powering PLCs and I/O modules in manufacturing systems .
Process Control – Reliable power for valves, sensors, and motor controls in chemical plants .
Energy Systems – Supporting substation monitoring and power distribution .

5. Installation & Precautions

Wiring Compliance – Use shielded cables to minimize electrical noise .
Cooling Requirements – Ensure adequate ventilation to prevent overheating .
Load Matching – Avoid exceeding rated current limits (7.2A or 15A depending on model) .