16 in stock
PLC Chassis | Allen-Bradley 1746-A2 SLC 500 Series
PLC Chassis | Allen-Bradley 1746-A2 SLC 500 Series
Brand/Manufacturer: Allen-Bradley
Order Number: 1746-A2
Type: PLC Chassis
Country of Origin: USA
Condition: Original Brand
Lead Time: Available in stock
Payment Term: 100% TT In Advance
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Description
The 1746-A2 is a 2-slot modular chassis designed for the Allen-Bradley SLC 500 programmable logic controller system. It provides the mechanical housing and backplane interconnection for one SLC 500 processor or 1747 I/O adapter module alongside one 1746 I/O module. The backplane distributes logic power provided by an attached 1746 power supply unit directly to the installed modules across its high-speed communication bus.
Backplane Power Distribution and Interconnection
Every slot on the backplane features standard 1746 card guides and socket connectors, allowing backplane communication and power supply feeding. Slot 0 is strictly reserved for the system processor (such as an SLC 5/01, 5/02, 5/03, 5/04, or 5/05) or a remote I/O adapter. Slot 1 accommodates any standard 1746 digital, analog, or specialty I/O module. Power is supplied by mounting a compatible 1746 power supply unit onto the left side of the chassis, which connects directly to the backplane power harness.
System Expansion and Mounting
The 1746-A2 supports standard panel mounting within standard industrial enclosures. For applications requiring more than two slots, multiple 1746 chassis can be interconnected in series using 1746-C9, 1746-C7, or 1746-C16 interconnect cables to form a continuous backplane across up to three chassis, subject to maximum system module limits.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1746-A2 |
| Brand | Allen-Bradley |
| Product Type | 2-Slot Modular Hardware Chassis |
| Compatible System | SLC 500 / 1746 Series |
| Number of Slots | 2 |
| Reserved Slot Configuration | Slot 0: Processor or Adapter; Slot 1: I/O Module |
| Mounting Type | Panel Mount |
| Weight | 0.32 kg |
Frequently Asked Questions
Q: Can the 1746-A2 chassis be used without a standalone power supply unit? A: No, the 1746-A2 backplane does not generate its own operating voltage. It requires a compatible 1746 power supply unit (such as a 1746-P1, 1746-P2, or 1746-P4) mounted to the left side of the frame to supply 5 VDC and 24 VDC backplane power to installed modules.
Q: Which module must be installed in Slot 0 of the 1746-A2? A: Slot 0 (the leftmost slot) is dedicated to the system controller or remote I/O adapter module. Standard 1746 I/O modules must be installed in Slot 1.
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Testimonials
Fast Delivery, Excellent Quality
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.
- Sarah Johnson
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.
- Sarah Johnson
Reliable Partner for Original Parts
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.
- David Smith
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.
- David Smith
Professional Service with After-Sales Support"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
Trusted Source for Industrial Automation Spares
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson