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Siemens 4EP4000-3DS00 — Line/Load Reactors

Siemens 4EP4000-3DS00 Commutating Choke, 400V 80A 3-Phase

MPN4EP4000-3DS00
Active

Siemens 4EP4000-3DS00, 3-phase commutating choke for converter applications, 400V AC, 80A AC max, 0.28 mH, IP00, flat-type terminals.

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

Specifications

4EP4000-3DS00 — Inductance & Impedance
ParameterValue
Rated inductance0.00028H
Relative inductive voltage drop4%
4EP4000-3DS00 — Identification
ParameterValue
Product designationKommut.-Drossel f. Stromrichter
4EP4000-3DS00 — Electrical
ParameterValue
Rated operating voltage400V
Rated current (AC)72A
Number of phases3
Current (AC), max.80A
Rated current (DC)98A
Voltage typeAC
Rated operating frequency50Hz
Peak current100A
4EP4000-3DS00 — Losses & Thermal
ParameterValue
Power loss, coil (W)80W
Power loss, iron core (W)26.2W
Rated ambient temperature40°C
4EP4000-3DS00 — Approvals
ParameterValue
Thermal class (IEC 60085)B
4EP4000-3DS00 — Mechanical
ParameterValue
Main-circuit connection typeflat connector
IP protection ratingIP00
Height0.179m
Width0.219m
Depth0.143m

Product details

It sits between the supply and the converter's rectifier to limit current rise rates, reduce harmonic distortion, and protect the DC link from line notching. Peak current capability is 100 A — useful for short-duration overloads during motor acceleration or converter inrush. DC-side rated current is 98 A, reflecting the choke's ability to handle the rectified output current.

Thermal and mounting reality

IP00 means no enclosure — this is a panel-mount component that needs to live inside a cabinet with proper ventilation. At 40 °C ambient, total power loss is 106.2 W (80 W coil + 26.2 W iron core), so plan for that heat rejection. Thermal class B (130 °C rise) per IEC 60085 gives the insulation system margin. Dimensions are 0.219 m wide × 0.179 m high × 0.143 m deep. Main circuit connections are flat-type terminals — expect busbar or crimp lug terminations, not screw-clamp wire ends.

Frequently asked questions

What is the physical size of 4EP4000-3DS00?

Width 0.219 m, height 0.179 m, depth 0.143 m. IP00 protection class — requires enclosure mounting.

MPN
4EP4000-3DS00