Siemens 1FK7042-5AF71-1SA3 — The 1FK7042-5AF71-1SA3 is a compact synchronous servo motor from Siemens' 1FK7 series, delivering 3 Nm of torque at a rated speed of 3000 rp

Part number	1FK7042-5AF71-1SA3
Brand	Siemens
Category	Servo Motor
Description	The 1FK7042-5AF71-1SA3 is a compact synchronous servo motor from Siemens' 1FK7 series, delivering 3 Nm of torque at a rated speed of 3000 rp
Manufacturer	Siemens
Product Line	1FK7
Part Number	1FK7042-5AF71-1SA3
UPC	040892675450
Weight	10.00 lbs (4.54 kg)
Module	Synchronous Servo Motor
Build	Compact
Torque	3 Nm
K-Factor	100K
Rated Speed	3000 rpm
Power Output	0.82 kW (1.1 HP)
Cooling Method	Naturally Cooled
Shaft End	IM B5
Connector Plug Max. Rotation	270°
Resolver	Multi-pole (p=4)
Shaft Key	Yes
Tolerance Class	N
Holding Brake	No
Degree of Protection	IP64

The 1FK7042-5AF71-1SA3 is a compact synchronous servo motor from Siemens' 1FK7 series, delivering 3 Nm of torque at a rated speed of 3000 rpm. It outputs a power of 0.82 kW, equivalent to 1.1 HP, and utilizes natural cooling for optimal performance. With an IP64 degree of protection, this unit is suited for various operational environments.

Also written as

040892675450

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.