Allen-Bradley 1756-PA75 Power Supply

Series#: AllenBradley

Product Details

1756-PA75 – High-performance AC power supply for Allen-Bradley ControlLogix chassis, delivering 75W of reliable system power.
Wide input voltage range: 85–264V AC, 47–63 Hz, ensuring stable operation in diverse industrial environments.
Integrated backplane power distribution for up to 17 slots, supporting redundant or standard configurations.
Robust thermal management with internal cooling fan and over-temperature protection for extended service life.
Compliant with global safety standards (UL, CE, CSA) for seamless integration into automation systems.
100% Genuine and New, rigorously inspected before international dispatch.

Specification

The 1756-PA75 is a rugged AC power supply module specifically engineered for the Rockwell Automation ControlLogix platform. Designed to provide clean, regulated 1.2V DC and 3.3V DC backplane power, this unit ensures reliable operation of I/O modules, processors, and communication interfaces within the chassis. With an output capacity of 75 watts, the 1756-PA75 supports standard slot configurations and is ideal for medium-sized control systems. Its wide AC input tolerance and built-in surge protection make it suitable for demanding industrial applications, from manufacturing lines to process control. The module features a compact form factor, hot-swappable capability (when used with proper chassis), and diagnostic LEDs for power status and fault indication.

Parameter	Specification
Model	1756-PA75 (AC Power Supply)
Input Voltage Range	85–264V AC, 47–63 Hz
Input Current (Max)	2.0 A RMS at 120V AC; 1.0 A RMS at 240V AC
Output Power	75 Watts (continuous)
Output Voltages	+1.2V DC (10 A max) and +3.3V DC (8 A max) for backplane
Backplane Capacity	Supports up to 17 slots in a single chassis (e.g., 1756-A17)
Efficiency	≥ 80% typical at nominal load
Protection Features	Overcurrent, overvoltage, overtemperature, and short-circuit protection
Cooling	Internal fan, forced air (front-to-back airflow)
Operating Temperature	0°C to +60°C (32°F to 140°F)
Storage Temperature	-40°C to +85°C (-40°F to 185°F)
Relative Humidity	5% to 95% non-condensing
Isolation	1500V AC input-to-output; 2500V AC input-to-ground
LED Indicators	Power OK (green), Fault (red)
Mounting	Directly to ControlLogix chassis (1756 series)
Dimensions (H x W x D)	5.1 x 3.5 x 5.2 inches (130 x 89 x 132 mm)
Weight	Approximately 1.2 lb (0.54 kg)
Certifications	UL 508, CSA C22.2 No. 142, CE, ATEX (Zone 2) for hazardous locations
Compatibility	All 1756 ControlLogix chassis (AC models) – 1756-A4, A7, A10, A13, A17