Mitsubishi A1SY81 — The Mitsubishi A1SY81 is a MELSEC AnS/QnAS Digital Output Module with 32 transistor output points in a common terminal arrangement

Part number	A1SY81
Brand	Mitsubishi
Category	I/O Module
Description	The Mitsubishi A1SY81 is a MELSEC AnS/QnAS Digital Output Module with 32 transistor output points in a common terminal arrangement
Manufacturer	Mitsubishi
Product Line	A Series
Part Number	A1SY81
Weight	0.44 lbs (0.20 kg)
Model Type	Digital output module
Series	MELSEC AnS/QnAS Digital output Module
Output type	Transistor output
No. of output points	32
Common terminal arrangement	32 points/common
Rated load voltage	12/24 VDC
Max. Load Current	0.1 A/pt, 2 A/com
Max. allowed rush current	0.4A, 10ms or less
Leakage current at OFF circuit	0.1 mA or less
Max OFF/ON output response time	2ms
Surge absorber	Zener diode
External Power supply	12/24 VDC (10.2 to 30 VDC), 8mA (typically 24 VDC/common)
Internal current consumption (5VDC)	500 mA (typically all points ON)

The Mitsubishi A1SY81 is a MELSEC AnS/QnAS Digital Output Module with 32 transistor output points in a common terminal arrangement. It operates with a rated load voltage of 12/24 VDC and a maximum load current of 0.1 A per point or 2 A per common terminal. The module has a surge absorber with a Zener diode and is equipped with a fuse rating of 3.2 A (1 piece per common). It offers an efficient...

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.