Mitsubishi A1S38U — The Mitsubishi A1S38U, a main base unit from the A Series, is engineered for versatile connections in automation setups

Part number	A1S38U
Brand	Mitsubishi
Description	The Mitsubishi A1S38U, a main base unit from the A Series, is engineered for versatile connections in automation setups
Manufacturer	Mitsubishi
Product Line	A Series
Part Number	A1S38U
Weight	3.00 lbs (1.36 kg)
Type	Main Base Unit
Specialized Coating	Corrosion-resistant coating suitable for marine environments
Slot Capacity	8 Slots for I/O Units
Connection Capability	Connects Power Supply, Main CPU, Extension Cables & Battery
Based on Extension Base Number Setting	I/O Configuration
All bases regarded as having 8 I/O slots	Extension Handling
Each slot	Mounting Style
Rack-Mountable	Compatibility
MELSEC-A modules	Expansion Capability
Supports Multiple Extension Bases	Configuration Flexibility

The Mitsubishi A1S38U, a main base unit from the A Series, is engineered for versatile connections in automation setups. With a capacity for 8 I/O slots, it is compatible with various components, including power supplies and CPUs.

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.