Allen-Bradley 1746-A4 SLC 500 4-Slot Chassis

Product Description: The Allen-Bradley 1746-A4 is a 4-slot chassis designed for use with the SLC 500 family of programmable logic controllers (PLCs).1 This chassis provides the physical backplane and connections for up to four 1746 series I/O modules.2 It's a key component for building small to medium-sized control systems using the SLC 500 platform. While the SLC 500 family is obsolete from Rockwell Automation, DD Parts Solution may have available stock (new old stock or used/refurbished) to support existing installations. Contact us for current availability and pricing. Key Features (Based on original documentation—subject to limitations due to obsolescence): 4 I/O Slots: Accommodates up to four 1746 series I/O modules.3 Backplane Connectivity: Provides the necessary connections for communication between the processor and I/O modules. Modular Design: Allows for flexible system configuration based on application needs. Obsolete (from Rockwell Automation): No longer manufactured or actively supported by Rockwell Automation. Available at DD Parts Solution (Potentially): Contact us for current stock. Technical Specifications (Consult official Rockwell documentation for precise details—subject to limitations due to obsolescence): Product Type: I/O Chassis Catalog Number: 1746-A4 Number of Slots: 4 Compatible I/O Modules: 1746 series Mounting: Panel mount Status: Obsolete (from Rockwell Automation), potentially available at DD Parts Solution Applications (Obsolescence caveats apply): Existing installations using SLC 500 controllers and 1746 I/O. Not recommended for new applications. Why contact DD Parts Solution for the 1746-A4? Support for Legacy Systems: We can help you maintain your existing SLC 500 systems with available chassis and other components. Potential for Available Stock: We may have new old stock (NOS) or used/refurbished 1746-A4 chassis available. Expertise in Legacy Automation: We understand the challenges of supporting older systems and can provide guidance. Migration Planning: We can assist you in planning a migration to a more modern platform if you are considering upgrading.