Mitsubishi A38B — Main Base Unit

Part number	A38B
Brand	Mitsubishi
Description	Main Base Unit
Manufacturer	Mitsubishi
Product Type	Main Base Unit
Product Line	A Series
Part Number	A38B
Weight	4.50 lbs (2.04 kg)
Number of I/O Slots	8 I/O Slots
Number of CPU Slots	1 CPU Slot
Number of Link Slots	1 Link Slot
Number of Power Supply Slots	1 Power Supply Slot
Screw Mounting	Supported
Special Function Modules	Supported
Operating Temperature	0 to 55 degrees Celsius
Storage Temperature	0 to 55 degrees Celsius
Max. Operating Humidity	80% RH, non-condensing
Max. Storage Humidity	80% RH, non-condensing
Max. Operating Altitude	1000m above sea level without derating
Max. Storage Altitude	1000m above sea level without derating

The A38B from Mitsubishi is a main base unit tailored for the A Series controllers. This versatile unit is equipped with 8 I/O slots and a single slot each for CPUs, links, and power supplies, making it adaptable for various setups.

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.