Mitsubishi A1SY42-S3 — The Mitsubishi A1SY42-S3 is a digital output local unit module in the A Series

Part number	A1SY42-S3
Brand	Mitsubishi
Description	The Mitsubishi A1SY42-S3 is a digital output local unit module in the A Series
Manufacturer	Mitsubishi
Product Line	A Series
Part Number	A1SY42-S3
Module Type	Digital Output Local Unit Module
Total Output Points	64 outputs
Isolation Method	Photocoupler Technology
Nominal Load Voltage	12/24 Volts DC
Operating Voltage Range	10.2 to 30.4 Volts DC (maximum: 30V DC)
Maximum Load Current	0.1 A per channel
Off-State Leakage Current	≤ 0.1 mA
Overvoltage Protection	Zener diode configuration
Common Wiring Configuration	32 points per common (1A1, 1A2, 2A1, 2A2 terminals)
Status Indicator	LED ON indication, switchable for 32 points
Connector Type	40-pin connection
External Power Voltage Range	12/24VDC (10.2 to 30VDC), ripple ≤ 5%
Operating Temperature Range	0 to 55 degrees Celsius
Storage Temperature Range	-20 to 75 degrees Celsius

The Mitsubishi A1SY42-S3 is a digital output local unit module in the A Series. It accommodates 64 output channels and employs photocoupler technology for isolation, ensuring reliable performance under various conditions.

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.