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Help Center1746-OB32 Allen Bradley SLC500 System DC Output Module 1746OB32
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Rossonix Co., Limited proudly presents the 1746-OB32 Allen Bradley SLC500 System DC Output Module (also referenced as 1746OB32). As a reliable trading partner with over a decade of experience in industrial automation components, we source only genuine, high-performance modules to support your control systems. This 32-point DC output module is designed to provide precise and robust switching for a wide range of applications, ensuring seamless integration into your existing SLC500 chassis. With a global export value exceeding US$5 million annually and a strong presence in North America, Europe, and Oceania, Rossonix is your trusted source for Allen Bradley spare parts.
The 1746-OB32 features 32 discrete sinking outputs, each rated at 24VDC and 0.5A, with built-in optical isolation to protect your PLC backplane from electrical noise. This module is ideal for driving solenoids, relays, indicator lights, and other low-power DC loads in manufacturing, packaging, and material handling systems. Its compact design fits standard SLC500 racks and supports hot-swap capabilities for minimal downtime.
Key Specifications
| Part Number | 1746-OB32 / 1746OB32 |
| Series | Allen Bradley SLC500 |
| Output Type | DC Sinking (Negative Logic) |
| Number of Outputs | 32 |
| Output Voltage Range | 10 – 30 VDC (rated 24VDC) |
| Current per Point | 0.5 A (0.5A max continuous) |
| Maximum Module Current | 4 A (total @60°C) |
| Isolation | 1500VAC optical isolation |
| Response Time | Off→On: 0.5ms; On→Off: 0.5ms |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Form Factor | Single-slot, rack-mountable |
Product Features & Benefits
High Channel Density – 32 outputs in a single slot reduce rack space requirements and simplify wiring.
Reliable Switching – Optical isolation prevents ground loops and protects the CPU from voltage spikes.
Fast Response – 0.5ms typical turn-on/turn-off ensures precise timing for high-speed applications.
Easy Diagnostics – Individual LED indicators per channel allow quick status check at a glance.
Wide Compatibility – Works with all SLC500 processors (e.g., 5/01, 5/02, 5/03, 5/04, 5/05) and compatible racks.
Durable Construction – Designed for industrial environments with 0–60°C operating range and built-in surge protection.
Hot-Swap Capable – Can be inserted or removed under power without disturbing other modules (consult manual for proper procedure).
This module is ideal for controlling solenoid valves, motor contactors, indicator lamps, and solid-state relays in automation lines. Its sinking output configuration (negative logic) is the standard for many DC loads, making the 1746-OB32 a versatile choice for both new installations and replacement upgrades.
Why Choose Rossonix?
Since 2011, Rossonix has been a dedicated supplier of industrial automation components, with an annual export value of US$5–10 million. We maintain a global presence with main markets across North America, South America, Europe, Oceania, the Middle East, and Asia. Our inventory includes thousands of genuine Allen Bradley modules, and we ship from strategically located warehouses in Shenzhen, Hong Kong, and Europe to ensure fast delivery. All products are sourced from trusted channels and backed by our commitment to quality. We hold ISO9001 certification for our quality management system, ensuring consistent product reliability and customer satisfaction.
Every 1746-OB32 module we supply is tested for functionality and includes a warranty. Our team of 11–50 experienced professionals provides responsive pre-sales and post-sales support. Whether you need a single module or bulk quantities, we offer competitive pricing and flexible shipping options.
Frequently Asked Questions
Q: What is the difference between 1746-OB32 and 1746-OB16?
A: The 1746-OB32 has 32 outputs, while the 1746-OB16 has 16 outputs. Both are 24VDC sinking modules; the OB32 provides higher channel density.Q: Can this module be used with 120VAC loads?
A: No. This is a DC output module rated for 24VDC loads only. For AC loads, please consider modules like 1746-OA8 or 1746-OX8.Q: Does the 1746-OB32 support PWM or pulse output?
A: No. This module is designed for discrete on/off control and does not support PWM modulation. For high-speed pulse outputs, use an SLC500 high-speed counter module.Q: Is the module compatible with 1746-IB16 input modules?
A: Yes, it is fully compatible. All SLC500 I/O modules share the same backplane architecture and can be mixed freely in a rack.Q: What is the maximum cable length I can use from the module to the load?
A: For reliable operation, keep cable lengths under 30 meters (100 feet) for low-voltage DC signals to minimize voltage drop. Longer runs may require thicker gauge wire or a remote I/O approach.Q: Is this a genuine Allen Bradley product?
A: Yes, we supply only genuine Allen Bradley (Rockwell Automation) modules. Each module bears the official part number, serial number, and Rockwell branding.Q: What warranty do you offer?
A: Rossonix provides a standard 1-year warranty against manufacturing defects. Extended warranty options are available upon request.Q: Do you provide technical documentation or manual?
A: Yes, a user manual (PDF) is provided with each module. Additional documentation can be downloaded from Rockwell Automation’s website.
Contact our sales team today for a quick quote and expert advice. With our extensive stock and global logistics network, we ensure your automation projects stay on schedule. Order the 1746-OB32 Allen Bradley SLC500 DC Output Module from Rossonix – your reliable partner in industrial automation since 2011.
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