Product Note
Allen-Bradley 1746-A10 is a 10-slot rack used in SLC 500 PLC systems. It is installed in existing industrial control cabinets where modular SLC components are still in service.
Most demand comes from replacement use. When original chassis units are damaged, or when cabinet expansion is required within the same SLC architecture, this model is commonly selected.
It supports standard 1746-series modules and provides both mechanical mounting and backplane connection across all slots.
Allen-Bradley 1746 A Series
The power supply support panel (left end panel) has screws as indicated in the illustration below. The center and right end panels are held in position by a molded latch and do not require screws.
Technical Information
| Item | Details |
|---|---|
| Catalog Number | 1746-A10 |
| Series | SLC 500 |
| Product Type | Modular PLC Chassis |
| Slots | 10 |
| Mounting Type | Panel / cabinet mounted |
| Backplane | SLC 500 communication backplane |
| Compatible Modules | 1746 I/O modules, CPU modules, power supplies |
| Power Options | 1746-P1 / P2 / P3 (system dependent) |
| Grounding | Chassis integrated grounding |
| Construction | Metal frame |
| UPC | 106624689123 (varies) |
| EAN | Not consistently assigned |
| Lifecycle Status | Mature product, still used in legacy systems |
Usage Context
This chassis is typically found in SLC-based control cabinets that have been in operation for many years.
Common applications include:
- Packaging machinery lines
- Conveyor systems
- Material handling equipment
- Older process control cabinets
In most cases, it appears during maintenance work rather than new system design.
Procurement Notes
Often ordered as a direct replacement part.
Used when maintaining existing SLC 500 systems without redesigning the control architecture.
Stock demand is usually related to:
- cabinet repair
- emergency replacement
- scheduled maintenance shutdowns
Lead time depends on distributor inventory.
To connect up to three chassis together (for a maximum of 30 I/O slots), install the chassis interconnect cable before attaching your power supply.
Related Parts
| Model | Description |
|---|---|
| 1746-A4 | 4-slot chassis |
| 1746-A7 | 7-slot chassis |
| 1746-A13 | 13-slot chassis |
| 1747-L524 | SLC 5/02 processor |
| 1746-P1 | power supply module |
| 1746-P2 | higher capacity power supply |
Can't find the version you need?
Short FAQ
Is this used in new PLC systems?
No, it is mainly used in existing SLC 500 installations.
Can it replace an existing chassis directly?
Yes, if slot configuration matches the original system.
Is it still available in the market?
Yes, mainly through industrial spare parts distributors.
All products are covered by a one-year warranty from SC Automation Electrical Components Co., Ltd. Manufacturer's warranty does not apply.
Refunds and Exchanges
1. If you have any questions about the item upon receipt, please contact us within 7 days.
2. Returned items must be in their original condition. We will process a refund or exchange for your order based on your specific situation after receiving your return/exchange request.
3. The buyer is responsible for all incurred shipping costs.
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