Siemens 6SL3210-1KE31-4UF1 Siemens

Product Overview The 6SL3210-1KE31-4UF1 is a SINAMICS G120C compact AC converter by Siemens, configured for unfiltered (UF) operation and rated at 75 kW nominal power. It converts three-phase 380 - 480 V AC (±10 %/-20 %) input into variable-frequency output suitable for motor control in industrial applications. Located within the G120C compact family, it provides digital and analog I/O, PROFINET/EtherNet-IP connectivity plus Safe Torque Off, making it suitable for machine tools, conveyors, pumps, and general processing equipment. This converter supports overload operation of up to 150 % for 3 s when needed. 6SL3210-1KE31-4UF1. Best Suited For Standalone machine drive control (e.g., conveyors, pumps) PROFINET or EtherNet-IP networked systems Applications requiring Safe Torque Off for safety integration Installations where space is limited (compact G120C frame) Rated power 75 kW (150 % for 3 s) Input voltage 380 - 480 V AC (+10/-20 %) 3 AC, 47 - 63 Hz Control interface 6 DI, 1 AI, 2 DO, 1 AO, PROFINET/EtherNet-IP, Safe Torque Off Frame size / Protection FSF / IP20 / UL open type Cooling & ambient Integrated fan; operation -20 … 40 °C Technical Specifications I/O & Electrical Standard digital inputs 6 Fail-safe digital inputs 1 Digital outputs (relay changeover) 1 (0.5 A @ DC 30 V) Digital outputs (transistor) 1 (0.5 A @ DC 30 V) Analog/digital inputs 1 differential input, 10 bit resolution Analog outputs 1 non-isolated output + PTC/KTY motor temp input ±5 °C accuracy Communication & Power Line voltage 380 … 480 V AC +10 %/-20 %, 47 … 63 Hz Rated current (LO) 134 A Rated current (HO) 112 A Rated power (LO) 75 kW Rated power (HO) 55 kW Max. output current 206 A Pulse frequency 2 kHz Output frequencies V/f up to 550 Hz; vector control up to 240 Hz Power factor λ 0.90 … 0.95 Efficiency η 0.99 Power loss 1 520 W Physical & Environmental Cooling method Air cooling via integrated fan Cooling air requirement 0.153 m³/s Installation altitude ≤ 1 000 m Operating temperature -20 … 40 °C Storage temperature -25 … 55 °C Transport temperature -40 … 70 °C Relative humidity ≤ 95 % RH, no condensation Max. motor cable length (shielded) 300 m Max. motor cable length (unshielded) 450 m Degree of protection IP20 / UL open type Dimensions (HxWxD) 708×305×357 mm Net weight 57.5 kg Certifications CE UL cUL KC EAC RCM Compliance with CE, UL, cUL, KC, EAC, C-Tick (RCM); EMC Directive 2004/108/EC; Low-Voltage Directive 2006/95/EC. Efficiency class IE2 per IEC 61800-9-2.