Output reactor for VFD motor protection
The Siemens SIDAC 4EU3052-0AG00-0AA0 is a 3-phase output reactor (choke) rated for 96 A maximum continuous current and a 3 000 Hz switching frequency. It sits between a variable-frequency drive and the motor to limit the rate of voltage rise (dV/dt) and reduce reflected-wave peaks on long cable runs — protecting the motor winding insulation from premature failure. Rated inductance is 0.3 mH (0.0003 H) with a voltage drop of 7.3 % at 50 Hz. Total power loss splits between the coil (210 W) and the iron core (145 W), so the reactor dissipates about 355 W at full load — factor that into enclosure ventilation. The IP00 rating means it is an open-frame component — no enclosure, no drip shield. It mounts inside a cabinet, not in a washdown or outdoor location. Terminals are flat-type connectors (bus-bar style), not cage clamps or screw lugs, so the panel builder needs the matching flat-strap or fork termination.
The lifecycle stage is recorded as mature. That typically means the design is stable and the part remains in the manufacturer's active portfolio, but it is not a new-release or high-velocity item. For a mature Siemens SIDAC reactor, the supply channel is through independent distribution — we source and quote this order code against an RFQ, confirming current availability and pricing at the time of quotation.
