Allen Bradley 1756-OB32 ControlLogix DC Digital Output Module

Overview

The 1756-OB32 is a ControlLogix DC digital output module designed for high-density control of DC field devices in industrial automation systems. With 32 output channels, it enables efficient switching of multiple loads such as relays, solenoids, indicators, and control devices while maintaining stable and reliable performance in demanding environments.

General Information

Part Number: 1756-OB32

Manufacturer: Allen Bradley

Brand / Country of Origin: Rockwell Automation / USA

Series: ControlLogix

Type: DC Digital Output Module

Number of Outputs: 32 DC Output Channels

Mounting: Chassis-based installation in ControlLogix systems

Technology: Solid-state high-density digital DC output with diagnostics

Power Specifications

Operating Voltage Range: 10–30 V DC

Nominal Output Voltage: 24 V DC

Backplane Current: 300 mA at 5.1 V DC

Total Backplane Power: 1.53 W

Maximum Continuous Current per Output: 0.5 A

Protection: Electronic overload and short-circuit protection

Status Indicators: Individual channel LEDs and module diagnostics LED

Communication & Interface

System Interface: ControlLogix backplane

Communication Method: High-speed chassis communication

Diagnostics: Output status monitoring and fault detection

Configuration: Software configurable via ControlLogix platform

Operator Interface: Front-panel LED indicators

Wiring Connection: Removable terminal block compatible

Environmental

Operating Temperature: 0°C to +60°C

Storage Temperature: -40°C to +85°C

Relative Humidity: 5% to 95%, non-condensing

Vibration Resistance: Industrial-grade rated environment

Protection Rating: Open-type module for installation within an enclosure

Dimensions & Weight

Dimensions (L × W × H): 144.57 × 22 × 105.42 mm

Weight: 0.231 kg

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