1756-PB75 Allen Bradley Power Supply 18-32V DC 20A 75W

Product Overview

The 1756-PB75 is a rugged, DIN-rail mountable DC power supply designed specifically for the Allen-Bradley ControlLogix 5560/5570 chassis. Operating from an 18–32 V DC source, it delivers a regulated 5.1 V DC at up to 20 A (75 W) to fully populate a 17-slot ControlLogix rack. Integrated over-voltage, over-current and thermal protection, plus redundant/load-sharing capability, make it the trusted choice for 24 V battery-backed systems in oil & gas, power generation and manufacturing lines.

Key Specifications

• Part number: 1756-PB75
• Input voltage range: 18–32 V DC (24 V DC nominal)
• Output voltage/current: 5.1 V DC @ 20 A (75 W max)
• Efficiency: >85 % at 24 V DC
• Hold-up time: 10 ms @ 20 A (24 V DC input)
• Over-current protection: Electronic, fold-back
• Isolation: 250 V AC input-to-output, functional
• LED indicators: DC OK, Fault, Over Temp
• Redundant/load-share: Yes—parallel up to 3 units
• Chassis compatibility: 1756-A4, A7, A10, A13, A17 (series A/B/C)
• Dimensions (W×H×D): 55 mm × 140 mm × 145 mm
• Weight: 1.0 kg (2.2 lb)
• Certifications: UL 508, cULus, CE, ATEX Zone 2, RCM, RoHS

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