Mitsubishi A1SX81 — The Mitsubishi A1SX81 module is a MELSEC A series input module with 32 input points

Part numberA1SX81
BrandMitsubishi
CategoryI/O Module
DescriptionThe Mitsubishi A1SX81 module is a MELSEC A series input module with 32 input points
ManufacturerMitsubishi
Product LineA Series
Part NumberA1SX81
Weight0.44 lbs (0.20 kg)
Model TypeInput module
SeriesMELSEC A
Input Points32
Isolation MethodPhotocoupler isolation
Rated Input Voltage12V DC, 24V DC
Maximum Inputs Simultaneously ON60% (at 26.4 V DC)
External Connections37-pin D-sub connector
Input ResistanceApproximately 3.3 kilohms

The Mitsubishi A1SX81 module is a MELSEC A series input module with 32 input points. It features photocoupler isolation between the input terminals and PC power, ensuring safety and reliability. Its rated input voltage is 12/24 Volts DC, and up to 60% of its inputs can be powered ON simultaneously at 26.4 Volts DC. Its external connection option is a 37-pin D-Sub connector. The A1SX81 module...

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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