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The 1746-OBP16 is an SLC 500 high-current DC output module providing 16 sourcing outputs. This module operates within a voltage range of 20.4 to 26.4V DC and is designed to handle significantly higher current loads than standard digital output modules, requiring an external 24V DC user power supply connected via the terminal block.
High Current Capacity
Electronic Protection
Inductive Load Surge
This module features integrated electronic protection against short circuit and overload conditions to prevent hardware damage. It supports a high current capacity of 2.0 A per point at 30°C (1.0 A at 60°C) and can withstand surge currents up to 4.0 A for 10 ms, providing 1500V DC optical isolation between the SLC backplane and field-side circuitry.
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 1746-OBP16 Digital DC Output 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.
Automotive Manufacturing
Used to drive heavy-duty DC solenoids and inductive actuators on welding lines and stamping presses. The module's 4.0 A surge capacity ensures reliable starting of high-current coils, while electronic protection prevents damage during high-cycle operation.
Petrochemical Processing
Applied in refinery control systems to operate high-intensity status indicators and emergency shut-off valves. The 1500V DC optical isolation protects the SLC backplane from electrical noise generated by long field-side cable runs in large-scale processing plants.
Material Handling
Deployed in automated warehouse sorting systems to control high-torque DC motor brakes and diverter gates. With a total module current rating of 16 A, it supports multiple high-power devices from a single 16-point card, reducing required cabinet space.
Food and Beverage
Utilized in high-speed bottling and packaging machinery to interface with DC-powered clutches and heating elements. The module maintains a 1.0 A per point rating even at 60°C, ensuring continuous performance in high-temperature washdown or processing environments.
Mining and Metals
Used in heavy machinery control stations to drive large DC contactors and alarm sirens. The sourcing output configuration and robust terminal block connections provide stable power delivery for critical signaling devices in harsh underground or surface mining conditions.
Water Treatment Plants
Implemented in pumping stations to manage large DC-operated chemical dosing pumps and motorized flow control valves. Integrated short-circuit and overload protection ensures system availability by isolating field-side faults without affecting the entire I/O rack.
To avoid electrical noise interference, the 1746-NR4 specialty I/O module must not be installed in a slot adjacent to AC or high-voltage DC I/O modules or the system power supply. For all RTD or resistance inputs, use shielded twisted-pair cable with the shield grounded at the SLC chassis end only to prevent ground loops. To ensure the highest noise rejection, select an input filter frequency that matches the AC line frequency. The module performs an autocalibration cycle upon power-up and at periodic intervals during operation to maintain specified accuracy across the entire operating temperature range without manual adjustment.
Additionally, the 1746-NR4 provides continuous diagnostics for open-circuit and short-circuit conditions and can be configured to measure direct resistance in ranges up to 3000.Ω for interfacing with non-standard resistance-based sensors or linear potentiometers.
What is the unique output current capability of the 1746-OBP16 compared to standard modules?
The 1746-OBP16 is a high-current sourcing module that supports 2 A per point at 30°C (1 A at 60°C), with a maximum total module current of 16 A.
What is the operating voltage range and required external power for the 1746-OBP16?
The module operates within a range of 20.4V to 26.4V DC and requires an external 24V DC user power supply connected to the VDC and DC COM terminals.
Does the 1746-OBP16 provide built-in electronic protection for its output points?
Yes, the module features electronic protection from short circuit and overload conditions, which prevents damage to the module when a fault occurs on the field side.
What are the surge current specifications for the 1746-OBP16 outputs?
Each output point can handle a maximum surge current of 4.0 A for 10 ms, repeatable every 2 seconds, which is essential for driving inductive loads.
How many groups are the 16 output points of the 1746-OBP16 divided into?
The 16 points are arranged in a single group with a common power connection (VDC), sharing 1500V DC optical isolation from the backplane.
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Focus on supplying surplus and new automation spare parts With abundant inventory and partnerships with top manufacturers, Apter Power ensure high-quality solutions for your industrial requirements
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For over 20 years, Apter Power always been a trustworthy leader in the industrial automation supply industry. As a trustworthy supplier of automation parts, we continuously expand our product line, expand our global customer base, and have won numerous awards
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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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