Siemens 1FK6040-6AK71-1EH0 — Synchronous Servo Motor

Part number	1FK6040-6AK71-1EH0
Brand	Siemens
Category	Servo Motor
Description	Synchronous Servo Motor
Manufacturer	Siemens
Product Type	Synchronous servo motor
Product Line	1FK6
Part Number	1FK6040-6AK71-1EH0
EAN	4025515015130
Weight	30.00 lbs (13.61 kg)
Electrical Phase	Operates on a three‐phase AC supply
Pole Count	6 poles
Nominal Torque	1.6 Nm
Maximum Speed	6000 RPM
Performance Constant	100K
Rated Current	2.8 A
Cooling System	Naturally air-cooled
Connector Rotation	270° rotatable power and signal connectors
Encoder	Absolute EnDat encoder with 2048 pulses per revolution
Shaft Design	Smooth, plain shaft
Precision Tolerance	Class N accuracy
Integrated Brake	Holding brake incorporated
Protection Rating	IP64
Rated Voltage	Approximately 400 V AC

The Siemens 1FK6040-6AK71-1EH0 is a synchronous servo motor designed for robust industrial use. This motor operates on a three-phase AC supply with a nominal torque output of 1.6 Nm, reaching speeds of up to 6000 RPM.

Also written as

4025515015130

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.