Allen Bradley 1756-PA75R Redundant Power Supply

The AB 1756-PA75R is a high-reliability redundant power supply designed for use with ControlLogix chassis systems. Rated at 75W output capacity, this unit accepts a wide input voltage range of 85–265V AC and provides robust regulated power across multiple voltage rails—making it an ideal choice for mission-critical applications in process, energy, and manufacturing sectors.

Equipped with redundancy capability, the 1756-PA75R can operate in parallel with a secondary power supply to maintain uninterrupted system operation in the event of a primary unit failure. It delivers power across 1.2V, 3.3V, 5V, and 24V buses for use with ControlLogix controllers and I/O modules.

Technical Specifications

Model: 1756PA75R
Series: ControlLogix
Type: Redundant Power Supply Module
Power Rating: 75 W
Redundancy Support: Yes (pair with secondary unit for redundancy)
Input Voltage Range: 85–265V AC
Frequency Range: 47–63 Hz
Application: ControlLogix chassis power for CPU, I/O, comms modules

Electrical Specifications

Input Type: AC
Input Voltage (AC 50/60 Hz): 110–230 V AC
Output Power: 75 W total
Output Voltage Rails:

• 1.2V: 1.5 A
• 3.3V: 4 A
• 5V: 13 A
• 24V: 2.8 A
  Power Supply Mode: Parallel/Redundant operation capable
  Inrush Current Limiting: Yes
  Hold-Up Time: Compliant with system specs for critical load transfer

Mechanical Specifications

Width: 145 mm
Height: 175 mm
Depth: 137 mm
Mounting: DIN rail or chassis backplane slot
Cooling Method: Natural convection
Installation: Left side of ControlLogix chassis (standard configuration)

Environmental Specifications

Operating Temperature: 0°C to 60°C
Storage Temperature: –40°C to +85°C
Humidity: 5% to 95% RH (non-condensing)
Altitude: Up to 2000 m without derating
IP Rating: IP20 (for control cabinet installation)
Pollution Degree: 2

Compliance & Certifications

CE Marked: Yes
UL / cUL Listed: Yes
RoHS Compliant: Yes
Standards: IEC 61131-2, IEC/EN 61010-2-201

Key Features & Benefits

✅ Redundant Power Support: Seamlessly pairs with backup PSU for high-availability systems

✅ Multi-Voltage Output: Powers all ControlLogix voltage buses including 24V, 5V, and 3.3V

✅ Universal AC Input: Accepts 85–265V AC for global compatibility

✅ Compact & Modular: Fits directly into ControlLogix chassis for fast installation

✅ High Output Capacity: Delivers up to 13A on 5V rail for power-hungry modules

📦 Order the Allen Bradley 1756-PA75R from Drive Outlet Megastore

At Drive Outlet Megastore, we offer unbeatable Allen Bradley 1756-PA75R prices. Engineered for uptime, this redundant power supply is a must-have for critical ControlLogix applications in regulated and safety-critical environments.

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Reliable power. Redundant assurance. — Drive Outlet Megastore