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Mitsubishi Electric
A1S68B-S1
Programmable Controller Extension Base Unit, 8 I/O slots
Mitsubishi Electric
From $200In stockDiscontinuedSource updated 6/24/2026
Product Description
The A1S68B-S1 is an extension base unit for Mitsubishi PLC systems designed to expand I/O capacity with reliable backplane connectivity. It supports installation of up to eight I/O modules on the base, providing a scalable path for distributed control in industrial automation applications. The unit includes an expansion base plate capable of mounting a power supply, enabling flexible system architectures and simplified panel layouts. Built for continuous operation, it maintains signal integrity across installed modules and is suited for machine control, process automation, and retrofit projects. Typical integration involves pairing with compatible Mitsubishi power supplies and CPUs, then populating the eight available slots with required I/O types. The compact, rugged construction helps minimize enclosure footprint while maintaining serviceability for maintenance teams. This listing includes the extension base unit only; I/O modules, CPU, and power supply are sold separately. Verify compatibility with your existing Mitsubishi PLC platform before installation, and follow standard grounding and wiring practices for reliable operation.
Key Features
- •Supports up to 8 I O modules
Buy Options
Condition, indicative price, stock, and lead time. Confirm current availability via RFQ.
ConditionPriceAvailabilityLead time
New
Price: $472.85
Availability: 8 in stock
Lead time: ~2 day lead
Never Used
Price: $251.28
Availability: 1 in stock
Lead time: ~2 day lead
Used
Price: RFQ
Availability: 54 in stock
Lead time: ~2 day lead
For Parts / Repair
Price: $200
Availability: Available to order
Lead time: Quoted after RFQ
Specifications
- Model
- A1S68B-S1
- Product type
- Extension base unit
- I O capacity
- 8 module slots
- Weight
- 0.95 kg
- Shipping weight
- 2 kg
- Warranty
- 12 months
- Part #
- A1S68B-S1
- Category
- PLCs and Machine Control
- Weight
- 2.40 lbs
Before we quote this part
Actual photos when available
Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.
Test notes for used units
Power-on or function test status is stated when available, with clear condition grading.
Trackable global shipping
DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.
Clear DOA boundary
For tested units, quote terms can include 7-day DOA support unless otherwise stated.
Independent sourcing disclaimer
We are not an authorized distributor, reseller, or representative of Siemens, Mitsubishi, Omron, or other manufacturers listed on this site. All product names, trademarks, brands, and logos are the property of their respective owners. Products may be used, refurbished, surplus, or sourced from the secondary market unless otherwise stated.
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