Allen Bradley 1756-OB16D Digital Output Module

The AB 1756-OB16D is a high-performance digital output module from the ControlLogix series, engineered to deliver 16 channels of 24V DC sourcing outputs with built-in diagnostic capabilities. Designed for modern automation systems, this module provides real-time output status monitoring and fault detection to improve uptime and troubleshooting efficiency.

Operating within a 19–30V DC range, the 1756-OB16D supports 8 A total output current and includes fast 0.6 ms switching for time-critical applications. Its compact 38.1 mm width allows for efficient panel space usage within a ControlLogix chassis.

Technical Specifications

Model: 1756OB16D
Series: ControlLogix
Module Type: Digital Output Module
Output Type: DC Sourcing (Transistor)
Channels: 16
Diagnostics: Integrated per channel
Application: Machine control, diagnostics, material handling, process automation

Electrical Specifications

Rated Output Voltage: 24V DC
Voltage Range: 19–30V DC
Output Current (Total): 8 A
Output Current per Point: Typically 0.5 A
Input Current at Signal 1: 3 mA
Signal Change Delay: 0.6 ms
Short Circuit Protection: Not included
Isolation: Channel-to-backplane and channel-to-channel

Communication & Interfaces

Bus Interface: ControlLogix backplane
Status Indicators: Yes (per channel)
Diagnostic Features: Short circuit detection, open load detection, output status feedback
I/O Connector Type: 36-pin plug-in connection
Wiring Method: Screw-type or spring clamp compatible

Mechanical Specifications

Width: 38.1 mm
Height: 300 mm
Depth: 111.25 mm
Weight: Approx. 0.25 kg
Mounting: ControlLogix chassis slot
Cooling Method: Passive / natural convection

Environmental Specifications

Operating Temperature: 0°C to 60°C
Storage Temperature: –40°C to 85°C
Humidity: 5% to 95% RH (non-condensing)
Vibration Resistance: 5 g
Shock Resistance: 30 g
IP Rating: IP20 (chassis dependent)

Compliance & Certifications

CE Marked: Yes
UL / cUL Listed: Yes
RoHS Compliant: Yes
Standards: IEC 61131-2, EN 61326-1, CSA C22.2 No. 142

Key Features & Benefits

✅ 16 x 24V DC Outputs – High-density sourcing module for flexible control.

✅ Integrated Diagnostics – Real-time feedback on output faults and states.

✅ Compact Footprint – Just 38.1 mm wide for space-saving panel layouts.

✅ Fast Switching – 0.6 ms signal change delay for responsive performance.

✅ Chassis-Ready – Easy installation into any standard ControlLogix rack.

📦 Order the Allen Bradley 1756-OB16D from Drive Outlet Megastore

At Drive Outlet Megastore, we offer unbeatable Allen Bradley 1756-OB16D prices. Ideal for high-speed, diagnostic-rich automation systems, this output module delivers reliability, precision, and enhanced control in a compact format.

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Diagnostic-ready. ControlLogix-proven. Rockwell solid. — Drive Outlet Megastore