Allen-Bradley ControlLogix | 1756-OB16E | 16-Point DC Output Module

Product Description

Allen-Bradley ControlLogix Digital Output Module – Model: 1756-OB16E  The 1756-OB16E is a 16-point DC output module from the Allen-Bradley ControlLogix family. It provides electronically fused outputs with fast response times, designed for reliable switching of DC loads in industrial automation systems. With robust current ratings, configurable keying, and removable terminal block compatibility, this module ensures dependable operation in demanding environments.

Technical Specifications

• Manufacturer: Allen-Bradley (Rockwell Automation)

• Product Line: ControlLogix

• Model: 1756-OB16E

• Type: Digital DC Output Module

• Number of Outputs: 16 channels

• Nominal Output Voltage: 24 VDC

• Operating Voltage Range: 10–31.2 VDC

• Maximum Output Current (per point): 1 A @ 60 °C

• Maximum Output Current (per module): 8 A @ 60 °C

• Output Delay (OFF to ON): 70 µs typical, 1 ms max

• Output Delay (ON to OFF): 360 µs typical, 1 ms max

• Isolation Voltage: 50 V continuous

• Power Dissipation: 4.1 W max @ 60 °C

• Thermal Dissipation: 13.98 BTU/hr @ 60 °C

• Backplane Current Draw (5.1 V): 250 mA

• Backplane Current Draw (24 V): 2 mA

• Module Keying: Electronic

• RTB Keying: User-defined mechanical

• Slot Width: 1

• Removable Terminal Blocks: 1756-TBNH, 1756-TBSH

• Weight: 0.56 lbs (0.26 kg)

Application Scenarios

• ControlLogix systems requiring high-density DC output modules

• Machine-level automation with fast switching requirements

• Applications needing electronically fused outputs for protection

• Industrial environments requiring modular terminal block flexibility

FAQ

Q: How many outputs does the 1756-OB16E provide?  A: It supports 16 DC output channels.

Q: What is the nominal output voltage?  A: 24 VDC.

Q: What removable terminal blocks are compatible?  A: 1756-TBNH and 1756-TBSH.

Q: What is the maximum current rating per point?  A: 1 A at 60 °C.