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Siemens 4EU3951-0AV00-0A — Line/Load Reactors

Siemens SIDAC 4EU3951-0AV00-0A Output Reactor, 115A, 3 kHz

MPN4EU3951-0AV00-0A

Siemens SIDAC output reactor, 3-phase AC, 115 A max, 3000 Hz switching frequency, 0.0011 H, IP00, flat-type terminals.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

4EU3951-0AV00-0A — Inductance & Impedance
ParameterValue
Rated inductance0.0011H
4EU3951-0AV00-0A — Identification
ParameterValue
Product designationoutput reactor
4EU3951-0AV00-0A — Electrical
ParameterValue
Number of phases3
Voltage typeAC
4EU3951-0AV00-0A — Losses & Thermal
ParameterValue
Power loss, coil (W)573W
Power loss, iron core (W)328W
Rated ambient temperature40°C
4EU3951-0AV00-0A — Approvals
ParameterValue
Thermal class (IEC 60085)H
4EU3951-0AV00-0A — Mechanical
ParameterValue
Main-circuit connection typeflat connector
IP protection ratingIP00
Height0.38m
Width0.41m
Depth0.22m
4EU3951-0AV00-0A — Other specifications
ParameterValue
Rated value3 000Hz

Product details

It carries an inductance of 0.0011 H and is built to thermal class H per IEC 60085, meaning the winding insulation can handle sustained temperatures of 180 °C — critical for drives running high-switching-frequency PWM waveforms that generate additional iron and copper losses. The reactor dissipates 573 W in the coil and 328 W in the iron core at rated conditions, so the enclosure needs forced ventilation or generous free-air volume around the IP00 chassis. This is a line-side or motor-side choke designed to smooth the output of a variable-frequency drive, limiting voltage spikes and reducing common-mode currents that can damage motor bearings or trip upstream protection.

The manufacturer classifies this part as mature, which typically means no active development or expansion of the product line, but it remains in the catalog for ongoing production and service support. No official successor order code has been issued; if you are replacing a failed unit in an existing line, this is the direct drop-in. For new designs, verify that the 3000 Hz switching-frequency rating matches your drive's PWM carrier — a mismatch can saturate the core or cause excessive heating.

Integration considerations

The IP00 protection class means the reactor is not touch-safe and requires installation inside a locked or tool-accessible enclosure. Ambient temperature rating of 40 °C is the baseline; derate the 115 A maximum if the cabinet ambient exceeds that. The flat-type terminals are sized for high-current connections — expect to land M10 or similar busbar hardware, not spring-clamp wiring.

MPN
4EU3951-0AV00-0A