Panasonic MSMD042J1S — AC Servo Motor, Low Inertia

Part number	MSMD042J1S
Brand	Panasonic
Category	Servo Motor
Description	AC Servo Motor, Low Inertia
Manufacturer	Panasonic
Product Type	AC servo motor, low inertia
Product Line	MS Series
Part Number	MSMD042J1S
Weight	3.56 lbs (1.62 kg)
Shaft Configuration	Straight with key
Rated Output Power	0.4 kW (400 W)
Rated Speed	3000 r/min
Maximum Speed	4500 r/min
Rated Torque	1.27 N·m
Peak Torque	3.8 N·m
Voltage Class	200 V AC three-phase
Encoder Type	131,072 pulses/rev (17-bit) incremental encoder
Protection Class	IP65 (excluding shaft end)
Insulation Class	Class F
Cooling Method	Natural convection / flange mount

The Panasonic MSMD042J1S is a low inertia AC servo motor from the MS Series. It delivers a rated output power of 0.4 kW at a speed of 3000 r/min, with a peak torque of 3.8 N·m.

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.