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The 1756-OB16E is a ControlLogix 24V DC electronically fused, sourcing discrete output module. This module mounts in any slot of a ControlLogix chassis and requires a Removable Terminal Block (RTB), or 1492 interface module (IFM) mounted on a DIN rail, to connect all field-side wiring.
Electronic Fusing Per Point
Fuse Blown Diagnostics
High Output Current Rating
The 1756-OB16E module provides 16 points with electronic fusing per point to protect the module from short-circuit and over-current conditions. It offers an operating voltage range of 10 to 31.2V DC and features diagnostic feedback, such as "Fuse Blown" fault reporting to the controller, to simplify troubleshooting and increase system uptime.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Allen-Bradley 1756-OB16E ControlLogix 16 Point D/O Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Oil & Gas
Used for controlling solenoid valves and emergency shutdown systems in refinery and pipeline operations. The electronic fusing protects critical control circuits from short circuits in volatile environments.
Automotive Manufacturing Applied in high-speed assembly lines and robotic welding cells to drive discrete actuators and indicators. It provides reliable diagnostic feedback to the controller to minimize downtime during localized wiring faults.
Food & Beverage
Integrated into automated packaging and bottling lines for precise control of sorting and filling equipment. The module ensures continuous operation by protecting against over-current conditions in wash-down areas.
Water Treatment
Utilized in municipal pumping stations and filtration plants to manage chemical feed pumps and motorized valves. It supports high system availability through advanced diagnostics and per-point electronic protection.
Power Generation
Deployed in distributed control systems for managing auxiliary plant equipment and turbine control subsystems. The 16-point density and 24V DC sourcing capability provide a standardized interface for industrial relay control.
Mining & Metals
Supports heavy-duty material handling and ore processing machinery by controlling motor starters and signaling devices. Its robust design operates reliably under extreme temperatures and high-vibration industrial conditions.
The 1756 digital DC output modules support scheduled outputs with synchronization to the Coordinated System Time, with a maximum synchronization time of 16.7 seconds.Each output point can be configured with individual fault states, including hold last state, on, or off (default). In Program mode, each point can also be configured to hold last state, on, or off (default).
Certain modules (1756-OB8EI, 1756-OB16D, 1756-OB16E, 1756-OB16IEF, 1756-OB16IEFS, 1756-OV16E, 1756-OV32E) provide electronic fusing per point. Other modules are not protected; the use of a fused IFM is recommended to protect outputs.Module keying is electronic and software configurable. RTB keying is user-defined mechanical.
What is the primary output characteristic of the Allen-Bradley 1756-OB16E module?
The 1756-OB16E is a 24V DC sourcing discrete output module that provides 16 points with electronic fusing per point to protect against short circuits.
What does the "E" suffix in the Allen-Bradley 1756-OB16E model number signify?
The "E" indicates that the 1756-OB16E module is electronically fused, providing built-in protection that eliminates the need for external fuses.
What is the operating voltage range for the Allen-Bradley 1756-OB16E?
The module has an operating voltage range of 10 to 31.2V DC, with a nominal supply voltage of 24V DC.
How does the electronic fuse in the Allen-Bradley 1756-OB16E respond to a fault?
When a short circuit or overload is detected, the 1756-OB16E turns off the affected output and can report a "Fuse Blown" fault to the controller.
What is the backplane current draw for the Allen-Bradley 1756-OB16E at 5.1V and 24V?
The 1756-OB16E draws 250mA from the 5.1V DC backplane and 2mA from the 24V DC backplane.
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Our extensive inventory of control systems (DCS, PLC, CNC), panel controllers, human-machine interfaces (HMI), industrial PCs, drivers, and power spare parts helps you reduce maintenance costs. Provide industrial automation spare parts that manufacturers no longer provide. We are a leading supplier that provides rare industrial automation parts to businesses of all sizes, with a strong track record of delivering the highest quality parts and services to customers at highly competitive price.
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