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PLC Cable Accessories | Allen-Bradley 1746-C7

Brand/Manufacturer: Allen-Bradley

Order Number: 1746-C7

Type: PLC Cable Accessories

Country of Origin: Sweden

Condition: Original Brand

Lead Time: Available in stock

Payment Term: 100% TT In Advance

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Description

The 1746-C7 is a 6-inch (152.4 mm) ribbon-style chassis interconnect cable designed for the Allen-Bradley SLC 500 modular programmable logic controller system. It enables communication and backplane signal extension between adjacent modular chassis when expanding standard SLC 500 system capacity within an enclosure.

System Expansion and Mounting Requirements

The 1746-C7 connects the backplane of a primary modular chassis to an expansion chassis installed side-by-side. The cable features keyed multi-pin ribbon connectors on both ends to ensure proper alignment and prevent improper pin contact during installation. System design guidelines require the expansion cable to exit from the right end of the main CPU chassis and enter the left side of the adjacent expansion chassis.

Physical Installation and Constraints

With an overall length of 0.5 feet (6 inches / 152.4 mm), the 1746-C7 is specifically intended for closely spaced horizontal side-by-side chassis configurations. Due to its short reach, vertical stacked chassis setups require longer interconnect cables (such as the 1746-C9 or 1746-C16). The standard locking tabs on the backplane sockets secure the ribbon connectors in place, maintaining high signal integrity against vibration and mechanical shock.

Specifications

Parameter Specification
Model 1746-C7
Brand Allen-Bradley
Product Line SLC 500
Component Type Chassis Interconnect Cable
Cable Type Flexible Ribbon Cable
Length 6 in (152.4 mm / 0.5 ft)
Mounting Orientation Side-by-side chassis mounting
Weight 0.04 lbs (0.02 kg)

Frequently Asked Questions

Q: Can the 1746-C7 cable be used to connect SLC 500 chassis installed one above the other?

A: No. The 1746-C7 is 6 inches long and designed strictly for adjacent side-by-side chassis connections. Vertical stacked chassis configurations require longer interconnect cables, such as the 1746-C9 (36 inches) or 1746-C16.

Q: How is the 1746-C7 ribbon cable oriented during installation?

A: The cable is hardware-keyed to prevent reversed connection. It must exit from the right side of the main chassis containing the CPU module and plug into the left side of the adjacent expansion chassis.

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We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.

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Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.

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