1756-PB75 | Allen-Bradley ControlLogix 18-32VDC Power Supply, Rack Mount

Allen-Bradley · HMIs & Displays

Description  The Allen-Bradley 1756-PB75 is a ControlLogix standard DC power supply module rated at 75 W. It accepts 18–32V DC input power and provides regulated backplane power for ControlLogix system modules.     Technical Specifications  Condition New/Never Used Brand Allen-Bradley Series ControlLogix Part Number 1756-PB75 Manufacturer Rockwell Automation Chassis Compatibility 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 Chassis Series Series B; Series C Hold Up time 35 ms @ 18V DC; 40 ms @ 24V DC; 40 ms @ 32V DC Output Power 75 W @ 0…+60 °C (+32…+140 °F) Current Capacity 1.5A at 1.2 VDC; 4A at 3.3VDC; 13 A at 5.1VDC and 2.8 A at 24VDC Max Inrush Current 30 Amperes Isolation Voltage 250V (continuous), Reinforced Insulation Type, Power Input to Backplane Type tested @ 3500V DC for 60 s Input Voltage Range 18-32VDC Nom Input Voltage 24VDC Module Type Standard Power Supply Input Power 95 W Location 1756 Chassis Left Side Dimensions 14.0 x 11.2 x 14.5 cm (5.51 x 4.41 x 5.71 in.) Input Voltage 24 Volts DC Voltage Range 18-32 Volts DC Power Output 75 Watts at 60 Celsius Chassis Series B Operating Temperature 32-140 Fahrenheit (0-60 Celsius) Enclosure None Weight 0.98 kgs       Information About 1756-PB75 The 1756-PB75 is part of the Allen-Bradley ControlLogix power supply family, designed to power chassis-mounted modules. It installs on the leftmost side of the chassis and supports Series B and C ControlLogix chassis including 1756-A4, A7, A10, A13, and A17. The module provides a nominal input of 24V DC with a maximum input power of 95 W. It delivers multiple regulated outputs including 1.5A at 1.2V DC, 4A at 3.3V DC, 13A at 5.1V DC, and 2.8A at 24V DC. With reinforced insulation rated at 250V continuous and tested up to 3500V DC, it ensures reliable isolation between input power and the backplane. The 1756-PB75 features a maximum inrush current of 30 A and hold-up times of up to 40 ms, supporting stable operation during power fluctuations. Compact and rugged, it is widely used in automation systems requiring dependable backplane power distribution. Key Features: Input Range: Accepts 18–32V DC input, nominal 24V DC. Output Power: Provides 75 W output at 0–60 °C operating temperature. Current Ratings: 1.5A @ 1.2V DC; 4A @ 3.3V DC; 13A @ 5.1V DC; 2.8A @ 24V DC. Installation: Mounts on the leftmost side of the ControlLogix chassis for backplane power distribution. Compatibility: Works with Series B and C chassis (1756-A4, A7, A10, A13, A17). Isolation: 250V continuous reinforced insulation, tested at 3500V DC for 60 seconds. Inrush Current: Handles up to 30 A inrush at startup. Wiring: Uses 14 AWG copper wire rated at 90 °C with secure torque connection of 0.565 N-m (5 lb-in). The 1756-PB75 delivers the reliability and efficiency required to power ControlLogix modules in demanding industrial environments.

Brand: Allen-Bradley · Category: HMIs & Displays

Key features

• Input Range: Accepts 18–32V DC input, nominal 24V DC.
• Output Power: Provides 75 W output at 0–60 °C operating temperature.
• Current Ratings: 1.5A @ 1.2V DC; 4A @ 3.3V DC; 13A @ 5.1V DC; 2.8A @ 24V DC.
• Installation: Mounts on the leftmost side of the ControlLogix chassis for backplane power distribution.
• Compatibility: Works with Series B and C chassis (1756-A4, A7, A10, A13, A17).
• Isolation: 250V continuous reinforced insulation, tested at 3500V DC for 60 seconds.
• Inrush Current: Handles up to 30 A inrush at startup.
• Wiring: Uses 14 AWG copper wire rated at 90 °C with secure torque connection of 0.565 N-m (5 lb-in).

Specifications

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