Siemens 1FT5102-0AC71-1 — AC Servomotor

Part number	1FT5102-0AC71-1
Brand	Siemens
Description	AC Servomotor
Manufacturer	Siemens
Product Type	AC Servomotor
Product Line	1FT5
Part Number	1FT5102-0AC71-1
UPC	662643825091
Weight	32.00 lbs (14.51 kg)
Cooling	Non-ventilated
DC Link Voltage	600 V DC
Nominal Torque	33 Nm (@ 100 K)
Nominal Speed	2000 rpm
Winding Temperature	100 K maximum continuous rise
Peak Torque	≈ 45.5 Nm (stall, @100 K)
Peak Current	≈ 56.4 A (stall, @ 100 K)
Rotor Inertia	4.35 × 10⁻³ kg·m²
Feedback System	Integrated tachogenerator + encoder
Ingress Protection	IP 64
Mounting Configuration	IM B5 (V1/V3 options)
Brake Resistor Spec	External, ~1.8 Ω for dynamic braking
Mass	≈ 14.5 kg

The Siemens 1FT5102-0AC71-1 is a non-ventilated AC servomotor designed for robust applications. It features a nominal torque of 33 Nm at a winding temperature rise of 100 K, operates up to 2000 rpm, and delivers peak torque of approximately 45.5 Nm.

Also written as

662643825091

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.