PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1746-C16 Chassis Interconnect Cable links modular hardware racks in SLC 500 control systems. This ribbon cable connects one modular chassis positioned below another within an enclosure. The assembly measures 1.27 meters (50 inches), with documentation also referencing 4 feet (1.22 meters). It is the longest rack interconnect cable offered for the SLC 500 system. Using longer unapproved cables can degrade backplane communication integrity and cause unsafe operation.
Each connector incorporates a keyed housing to enforce correct orientation during installation. The end with a top key plugs into the right socket of the primary chassis. The opposing end with an inside key inserts into the expansion chassis socket. Connectors feature rigid construction with shrink wrap applied at the end for strain relief. Maintain at least 101.6 millimeters (4 inches) of clearance to preserve the required bend radius.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Category | PLCs |
|---|
| UPC | 611320096781 |
|---|
| Weight | 0.50 lbs (0.23 kg) |
|---|
| Hardware Type | Chassis Interconnect Cable |
|---|
| Length | 4 feet (1.22 meters) |
|---|
| Analog Inputs | Thermocouple |
|---|
| Backplane Current (5 Volts) | 110 milliamps |
|---|
| Backplane Current (24 Volts) | 85 milliamps |
|---|
| Slots | 1 |
|---|
| Connection Hardware | 1492-CABLE010H and 1792-IFM40F |
|---|
TECHNICAL INFORMATION
Features
- Connects SLC 500 modular chassis in vertical multi-rack cabinet installations.
- Spans 1.27 meters (50 inches), also cataloged as 4 feet (1.22 meters).
- Keyed connector housings ensure correct socket alignment and avoid incorrect wiring.
- Rigid shrink-wrap termination provides mechanical strain relief at connection points.
- Maintains backplane communication across separated chassis assemblies.
TECHNICAL INFORMATION
Applications
- Multi-chassis Allen-Bradley SLC 500 modular programmable controller systems.
- Enclosure rack layouts requiring an expansion chassis positioned below the primary rack.
TECHNICAL INFORMATION
Connections / Interfaces
- Keyed primary connector attaches to the right socket of the main chassis.
- Keyed expansion connector plugs into the port on the expansion chassis.
- Compatible with 1492-CABLE010H and 1792-IFM40F connection hardware.
TECHNICAL INFORMATION
Installation Guidelines
- Route and link the 1746-C16 cable before mounting the system power supply.
- The right end of the chassis must connect to the left end of the other chassis.
- Plug the end with a top key into the right socket of the chassis.
- Insert the opposing end with an inside key into the expansion chassis.
- Secure the cable firmly to avoid the effects of shock and vibration.
- Provide at least 101.6 millimeters (4 inches) of clearance for proper bend radius.
- Push the socket tabs outward with moderate force to release the connector.
TECHNICAL INFORMATION
Configuration Guidelines
- Do not exceed the length of the 1746-C16 cable in SLC 500 chassis expansion.
- Use only manufacturer-recommended interconnect cables to protect backplane communication integrity.
TECHNICAL INFORMATION
Compatibility
- Allen-Bradley SLC 500 modular hardware chassis.
- Compatible with 1746-RT32, 1492-CABLE010H, and 1792-IFM40F hardware.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSAllen-Bradley SLC 500 modular hardware chassis. Compatible with 1746-RT32, 1492-CABLE010H, and 1792-IFM40F hardware.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the Allen-Bradley 1746-C16?
The 1746-C16 links two SLC 500 modular chassis placed in vertical cabinet arrangements.
What is the total length of the 1746-C16 cable?
The cable length is 1.27 meters (50 inches), also cataloged as 4 feet (1.22 meters).
What clearance is required for the 1746-C16 bend radius?
Installation requires at least 101.6 millimeters (4 inches) of clearance for proper bend radius.
