1746-RT28 Allen Bradley

Description

Product Name:  1741746-RT28  Allen Braley Processor module

Product details:  

The Allen-Bradley 1746-RT28 is a specialized terminal block designed for use with the SLC 500 series modular I/O systems. Specifically, it is a removable terminal block (RTB) used to provide a connection interface between field wiring and the I/O module.

1. Product Overview

The 1746-RT28 is a 28-point removable terminal block. In the SLC 500 ecosystem, RTBs allow you to wire your sensors and actuators to the block itself, which then snaps onto the front of the I/O module. This design is crucial for maintenance, as it allows for the replacement of a module without disconnecting every individual wire.

2. Technical Specifications

3. Product Advantages

• Ease of Maintenance: The primary benefit is the “Removable” aspect. If a PLC module fails, you can pull the 1746-RT28 block off, swap the module, and snap the block back on. This eliminates wiring errors during repairs.

• Reduced Downtime: Since field wiring remains intact during hardware swaps, the “Mean Time To Repair” (MTTR) is significantly lowered.

• High Density Support: It is specifically engineered to handle the tight spacing required for 32-channel high-density modules.

• Secure Connections: The screw-cage clamp design ensures that wires remain seated even in environments with moderate vibration.

4. Key Considerations & Precautions

• Compatibility Check: Not all SLC 500 modules use the RT28. Standard 16-point modules often use different blocks. Ensure your module (e.g., a 32-point digital input) specifically requires a 28-terminal interface.

• Wiring Neatness: Because 28 wires are converging on a small footprint, use thin-jacketed wire and proper ferrules to avoid overcrowding and short circuits.

• Tightening Torque: Do not over-tighten the screws, as this can strip the plastic housing or damage the internal clamp.

• Power Down: Always remove power from the PLC rack and the field-side power supply before removing or installing the terminal block to prevent electrical arcing or damage to the module.

5. Product Applications

The 1746-RT28 is used wherever SLC 500 High-Density I/O modules are deployed:

• Manufacturing Assembly Lines: Connecting large arrays of proximity sensors and limit switches.

• Water Treatment Plants: Managing multiple digital signals from pumps, valves, and level sensors.

• Packaging Machinery: Where high I/O counts are required in a compact control cabinet.

• Retrofit Projects: Maintaining legacy SLC 500 systems that are still critical to plant operations.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!

We have the same series of models in stock.  If you don’t find the model you need, please contact us and we will provide you with an official quotation！

Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service

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