Allen-Bradley 1746-OB16

Floating Light Automation is a reliable supplier of Allen-Bradley 1746-OB16. As a 16-channel discrete output module, the 1746-OB16 delivers reliable, high-speed signal switching for industrial automation applications, making it ideal for controlling actuators, relays, indicators, motors, and other field devices in diverse manufacturing and process control environments.

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Product Description

The Allen-Bradley 1746-OB16 is a high-performance digital output module designed exclusively for the Allen-Bradley SLC 500 modular PLC system, a industry-leading control platform developed by Rockwell Automation.

As a 16-channel discrete output module, it delivers reliable, high-speed signal switching for industrial automation applications, making it ideal for controlling actuators, relays, indicators, motors, and other field devices in diverse manufacturing and process control environments.

Floating Light Automation, a professional distributor, stocks genuine new and refurbished 1746-OB16 modules, with fast global shipping and comprehensive technical support to meet your automation system upgrade, expansion, and maintenance requirements.

Key Specifications

Parameter	Specification
Manufacturer Part Number	1746-OB16
Product Series	Allen-Bradley SLC 500
Number of Output Points	16 discrete outputs, grouped as 2 isolated banks of 8 points each
Output Type	Solid-state (transistor) DC output
Output Voltage Range	10...30 V DC
On-State Voltage Drop	≤ 0.8 V DC at rated current
Maximum Current per Point	0.5 A per output point
Maximum Current per Bank	4 A per 8-point bank
Leakage Current (Off-State)	≤ 1 mA
Response Time (On to Off)	≤ 100 µs typical
Response Time (Off to On)	≤ 50 µs typical
Backplane Current Consumption	100 mA at 5 V DC from SLC 500 chassis backplane
Isolation Voltage	1500 V AC continuous (channel-to-backplane, bank-to-bank isolation)
Operating Temperature Range	0...60 °C (32...140 °F)
Storage Temperature Range	-40...85 °C −40...185°F
Relative Humidity	5...95% non-condensing
Installation Compatibility	Fits all standard 13-slot, 10-slot, 7-slot, and 4-slot SLC 500 chassis

Allen-Bradley 1746-OB16

Product Benefits

· High-Density I/O Integration

16 output points in a single modular slot reduce chassis space requirements, allowing you to maximize the number of control points per SLC 500 system without expanding to additional chassis.

· Solid-State Reliability

Transistor-based output design eliminates moving parts associated with relay output modules, reducing wear and tear, extending operational lifespan, and delivering consistent switching performance even in high-cycle applications.

Solid-state construction also provides faster response times for time-critical control tasks.

· Isolated Bank Design

Two independent 8-point isolated banks enable the 1746-OB16 to control devices operating on separate DC voltage circuits without risk of cross-interference.

This design improves system stability and protects sensitive control electronics from voltage spikes or fault conditions in one section of the system.

· Fast Switching Response

Sub-millisecond on/off response times support high-speed industrial processes such as packaging, conveyor sorting, and precision machining, where accurate timing of output signals directly impacts product quality and production throughput.

· Built-In Protection

The module includes overcurrent and over-temperature protection to prevent damage to the module and connected field devices during fault conditions.

Built-in diagnostics simplify troubleshooting, allowing maintenance teams to quickly identify and resolve output faults to minimize unplanned downtime.

· Wide Compatibility

The 1746-OB16 is fully compatible with all SLC 500 controllers (including SLC 5/01, 5/02, 5/03, 5/04, and 5/05 CPU models) and works seamlessly with RSLogix 500 programming software.

It's a drop-in replacement for existing modules or a flexible expansion option for new SLC 500 systems.

Typical Applications

· Material handling and conveyor system control

· Packaging and bottling line automation

· Machine tool and industrial robotics control

· Food and beverage processing equipment

· Pharmaceutical manufacturing and packaging

· Automotive assembly line control

· Water treatment and wastewater management systems

· HVAC and building automation control

In these applications, the Allen-Bradley 1746-OB16 is commonly used to control solenoid valves, indicator lights, motor starters, relays, small DC motors, and other discrete field devices that require reliable DC switching from the PLC control system.

Ordering Information from Floating Light Automation

At Floating Light Automation, we specialize in providing genuine Allen-Bradley SLC 500 series components to industrial and commercial automation integrators, end-users, and maintenance teams worldwide.

For the 1746-OB16, we offer the following options:

· New Genuine Module: Factory-sealed original Allen-Bradley 1746-OB16 with full manufacturer warranty eligibility

· Certified Refurbished Module: Professionally refurbished, fully tested to meet original factory specifications, with a 1-year replacement warranty from Floating Light Automation

We offer expedited global shipping to all major industrial regions, with full tracking provided for every order. All orders are carefully packaged to prevent damage during transit.

For bulk orders, custom quotations, or technical inquiries about the 1746-OB16 or other Allen-Bradley SLC 500 components, contact our sales team today for a fast response.