Mitsubishi A3CPU-R21 — The A3CPU-R21 CPU module from Mitsubishi's A Series is designed for indoor environments

Part numberA3CPU-R21
BrandMitsubishi
CategoryPLC Processor
DescriptionThe A3CPU-R21 CPU module from Mitsubishi's A Series is designed for indoor environments
ManufacturerMitsubishi
Product LineA Series
Part NumberA3CPU-R21
Weight2.44 lbs (1.11 kg)
TypeCPU Module
UsageIndoor
I/O Capacity512 points
Power Supply100-240 VAC
Operating Temperature0 to 55°C
ComplianceCE, UL/cUL

The A3CPU-R21 CPU module from Mitsubishi's A Series is designed for indoor environments. It measures 3.0 x 10.0 x 5.0 inches and supports a power supply range of 100-240 VAC, making it versatile for many applications.

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.

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