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Help Center1746-OW8 Allen Bradley SLC500 System Relay Output Module 1746OW8
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Rossonix Co., Limited is proud to offer the 1746-OW8 Allen Bradley SLC500 System Relay Output Module (also known as 1746OW8). As a trusted supplier in the industrial automation market since 2011, we provide authentic, high-performance components that keep your control systems running reliably. Our extensive experience serving customers across North America, Europe, Oceania, and other global regions ensures you receive genuine products with dependable service. The 1746-OW8 is essential for switching AC/DC loads in SLC500 programmable controller systems, offering 8 isolated relay outputs perfect for a wide range of machine control and process automation applications.
This output module is designed to interface directly with Allen-Bradley SLC500 processors and expansion racks. Each of its 8 output channels features a Form A (SPST-NO) relay capable of switching loads up to 2A resistive or 0.5A inductive per point. The built-in optical isolation protects the controller logic from field-side surges and noise, enhancing system reliability. With a compact footprint, the 1746-OW8 saves valuable panel space while providing robust performance in harsh industrial environments.
Key Features & Technical Specifications
8 Isolated Relay Outputs: Each relay is individually isolated from logic and from other channels, allowing mixed voltage/current loads on different points.
Relay Type: Form A (SPST-NO) with normally open contacts for fail-safe operation.
Wide Load Voltage Range: Supports 10–265V AC or 5–125V DC, making it suitable for both AC and DC field devices such as solenoids, contactors, indicator lights, and small motors.
High Current Rating: 2.0A continuous per point (resistive), 0.5A per point (inductive) – enough for most discrete control loads.
Optical Isolation: 1500V AC isolation between logic side and field side ensures safety and noise immunity.
LED Indicators: Each output channel has a dedicated green LED to indicate contact status.
Hot Swappable: Can be inserted or removed with power applied (subject to system configuration).
Compatibility: Works directly with SLC500 processors (PLC-5, SLC 5/01, 5/02, 5/03, 5/04, 5/05) via backplane connection.
| Parameter | Value |
|---|---|
| Output Points | 8 |
| Output Type | Relay (Form A, SPST-NO) |
| Operating Voltage (Logic) | 5V DC from backplane |
| Load Voltage Range | 10–265V AC / 5–125V DC |
| Maximum Current per Output | 2A (resistive), 0.5A (inductive) |
| Isolation Voltage (Logic to Field) | 1500V AC, 1 minute |
| LED Status Indicators | Yes – one per channel |
| Environmental Operating Temp | 0°C to 60°C (32°F to 140°F) |
| Weight | Approx. 0.4 lbs (0.18 kg) |
Key Benefits for Your Control System:
Increased Flexibility: Independent relay channels allow mixing AC and DC loads in the same module, reducing the need for separate modules.
Enhanced Reliability: Optical isolation and solid-state relay driver ensure long life and protection against voltage transients.
Simple Diagnostics: LED indicators on every output let you quickly confirm status without a programming terminal.
Cost-Effective Upgrade: Replace worn-out or obsolete output modules with genuine Allen-Bradley 1746-OW8 for seamless integration.
Wide Compatibility: Fits all SLC500 chassis (4, 6, 10, 13, 17-slot) and works with any SLC500 processor.
Trusted Global Supply – Why Choose Rossonix?
Since 2011, Rossonix Co., Limited has served as a reliable trading partner for industrial automation components worldwide. With an annual export value of US$5 Million – US$10 Million and a dedicated team of 11–50 professionals, we have built strong relationships with suppliers and customers across North America, South America, Europe, Oceania, the Middle East, and Asia. Our overseas office facilitates efficient logistics and localized support. We ship from strategic ports in Shenzhen, Hong Kong, and Europe, ensuring fast delivery to your site. Our company is ISO9001 & ISO9000 certified, reflecting our commitment to quality management and customer satisfaction. Every 1746-OW8 module we supply is thoroughly tested and backed by genuine warranty support. Choose Rossonix for your SLC500 spare parts and experience dependable performance, competitive pricing, and excellent after-sales service. Contact us today to place your order or ask any technical questions.
Frequently Asked Questions (FAQ)
Q1: Is the 1746-OW8 compatible with all SLC500 processors?
A: Yes, it works with SLC 5/01, 5/02, 5/03, 5/04, 5/05, and even earlier PLC-5 when used in compatible racks. Always check your backplane slot type (fixed I/O uses a different form factor).Q2: Can I mix AC and DC loads on the same module?
A: Absolutely! Each relay output is isolated, so you can connect AC loads to some channels and DC loads to others without interference.Q3: What is the maximum switching frequency of the relay outputs?
A: Mechanical relays are not designed for high-speed switching. Maximum recommended switching frequency is typically 10 operations per second for resistive loads; for inductive loads, keep it below 1 Hz to ensure contact life.Q4: Does the module support hot swapping (insertion/removal under power)?
A: It is possible in most SLC500 systems, but we recommend powering down the rack before inserting or removing modules to avoid transient damage. Consult your system manual.Q5: Are replacement fuses available for the output circuits?
A: The 1746-OW8 does not include built-in fuses; external fusing is recommended per channel for overload protection (e.g., 2A fast-blow fuse for each output).Q6: What is the typical lead time for the 1746-OW8 from Rossonix?
A: For stock items, we can ship within 1–3 business days from Shenzhen, Hong Kong, or European warehouses. Larger quantities may require 7–10 days. Contact our sales team for current availability.Q7: Do you provide a warranty for this module?
A: Yes, we offer a standard 12-month warranty against manufacturing defects. Extended warranty options are available upon request.Q8: Can I get a certificate of conformance or test report?
A: Yes, we can provide a certificate of conformance upon request. Our quality management system ISO9001 ensures traceability and testing procedures are followed.
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