The Siemens 4EP3600-6DS00 is a 3-phase commutating choke — a line reactor — built for converter front-ends on 400 V AC mains at 50 Hz. Rated 36 A continuous with a 40 A max, it limits current rise and harmonic distortion on the input side of variable-frequency drives and rectifiers. This is an open-frame (IP00) component — no enclosure, no dust or splash protection. It mounts inside a cabinet, wired via its screw-type terminals. Thermal class B insulation per IEC 60085 means a 130 °C continuous winding temperature limit, with 39 W coil loss and 9.3 W iron-core loss at the 40 °C ambient rating.
The 36 A rated current (40 A max) is the continuous thermal limit at 40 °C ambient — size this choke for the drive input current, not the motor nameplate. At DC, the same choke carries 49 A, which matters if you are using it on the DC link of a regenerative drive. The 0.35 mH inductance and 2% voltage drop are sized for typical 400 V class drives in the 15–22 kW range. Higher inductance would drop more voltage and reduce available torque; lower inductance would pass more harmonic current. This is a standard off-the-shelf match for most 50 Hz 400 V converter inputs.
Panel Integration
Footprint is 0.148 m wide × 0.139 m tall × 0.078 m deep. Open-frame construction means it bolts to a backplate or chassis inside the enclosure — no DIN rail. Screw terminals accept standard power wiring; plan for adequate clearance around the magnetic core for heat dissipation from the 48.3 W total losses (coil + iron).