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Help Center1746-OW4 Allen Bradley SLC500 System Relay Output Module 1746OW4
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Rossonix Co., Limited is proud to offer the 1746-OW4 Allen Bradley SLC500 System Relay Output Module, a reliable and cost-effective solution for industrial automation control. As a trusted supplier since 2011 with ISO9001 certification and annual export value between US$5-10 million, we ensure every module meets strict quality standards. This 4-point relay output module is designed to switch high-voltage and high-current loads in harsh manufacturing environments, providing long-lasting performance for your PLC system.
The 1746-OW4 is a compact output module within the Allen-Bradley SLC500 family, ideal for applications requiring isolated relay contacts. Each output can handle up to 2A at 120VAC or 125VDC, making it suitable for motors, solenoids, valves, and indicators. The module features LED indicators for each channel, simplifying troubleshooting and reducing downtime.
Below are the detailed technical specifications:
| Parameter | Value |
|---|---|
| Output Type | Form A (SPST-NO) Relay |
| Number of Outputs | 4 |
| Operating Voltage | 120VAC / 125VDC |
| Maximum Continuous Current | 2A per output (resistive load) |
| Inrush Current | 10A max for 10ms |
| Backplane Current Draw | 5V: 35mA, 24V: 50mA |
| Isolation Voltage | 1000VAC for 1 second (between field and system) |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
| Storage Temperature | -40 to 85 °C (-40 to 185 °F) |
| Dimensions (H x W x D) | 104 x 87 x 64 mm (4.1 x 3.4 x 2.5 in) |
| Weight | 0.25 kg (0.55 lb) |
High Reliability: Sealed relay contacts resist dust and vibration, ensuring stable operation in industrial environments.
Easy Diagnostics: Green LED per channel indicates output status; module has a red LED for communication fault.
Snap-In Design: Modules are keyed and can be installed or removed without powering down the rack (hot-swappable when used with compatible SLC chassis).
Wide Application: Commonly used for controlling AC or DC loads such as contactors, relays, small motors, and solenoid valves.
Comprehensive Support: Each module includes a removable wiring terminal block for quick field wiring replacement.
Key Benefits to Your Business: By choosing the 1746-OW4 from Rossonix, you gain a direct replacement for legacy SLC500 systems, extending the life of your automation assets. Our stock is sourced from reliable channels and tested before shipment. With over 12 years of experience serving markets in North America, Europe, and Asia, we understand the urgency of uptime—most orders ship within 24-48 hours from our Shenzhen warehouse or overseas office.
Our company, Rossonix Co., Limited, has maintained ISO9001:2015 certification across all operations. We have exported over US$5 million annually to 15+ countries, and our Shenzhen team of 11-50 professionals ensures every order is handled with care. Whether you need one module or bulk quantities, we offer competitive pricing and flexible shipping options via Shenzhen, Hong Kong, or European ports.
Contact us today for a quote or technical consultation. Our engineers are ready to help you integrate the 1746-OW4 into your control system seamlessly.
Frequently Asked Questions (FAQ)
Is the 1746-OW4 compatible with all SLC500 processors?
Yes, it works with SLC5/01, 5/02, 5/03, 5/04, and 5/05 controllers. Always verify rack addressing and power supply capacity.What is the maximum load per output?
Each relay output can handle 2A continuous at 120VAC or 125VDC. For inductive loads, we recommend derating to 1.5A or using a snubber.Can I use this module for DC loads?
Yes, the relay contacts are rated for DC voltage up to 125VDC. However, for DC loads above 2A, you may need an external contactor.Does the module require external power?
No, the module draws its power from the backplane (5V and 24V). Field wiring supplies the load voltage.How do I know if the module is faulty?
Check the green LED per channel—if an output is on but the LED is off, the relay may be defective. Also monitor the red module fault LED.What accessories are included?
The module comes with a removable terminal block (16-pin). A dust cover is optional and can be purchased separately.Is the 1746-OW4 still in production?
Allen-Bradley has announced phase-out of SLC500, but the 1746-OW4 remains available as a replacement part. Rossonix stocks new and surplus units.Do you offer a warranty?
Yes, we provide a 12-month warranty against manufacturing defects. Extended warranty options are available upon request.
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