Siemens – 1FK7042‑5AK71‑1FA5 – SIMOTICS S 1FK7 Compact 3 Nm Synchronous Servo

The Siemens 1FK7042‑5AK71‑1FA5 is a high-performance synchronous servo motor from the SIMOTICS S 1FK7 Compact series. It delivers precise motion control with a continuous torque of 1.95 Nm (3 Nm peak), optimized for use with SINAMICS S110/S120 drive systems. The IP65-rated motor includes a multiturm absolute encoder and premium connector block, making it suitable for rugged industrial environments and OEM applications.

Key Features:

• Model / P/N: 1FK7042‑5AK71‑1FA5  

• Torque: 3 Nm peak, 1.95 Nm rated

• Power & Speed: 1.02 kW at 6000 rpm max (actual: 3000 rpm for this variant)  

• Current: ~3.1 A  

• Encoder: Ranger multi-turn absolute (22-bit, 10‑bit/turn × 4096 turns)  

• Mounting & Cooling: B5 (flange) IM V1/V3, naturally cooled  

• Protection Rating: IP65 flange; IP67 at flange on motor-end  

• Connectors: Rotatable (270°) power/signal plug block  

• Encoding Interface: DRIVE‑CLiQ compatible  

• Weight: Approx. 4.9 kg