Skip to main content
Siemens 4EP3701-0US00 — Line/Load Reactors

Siemens 4EP3701-0US00 Mains Choke, 3-Phase 460V, 9.9A, 2.93m

MPN4EP3701-0US00

Siemens 4EP3701-0US00 mains choke (Netzdrossel f. FU), 3-phase, 460V AC, 9.9A rated current, 2.93mH inductance, 4.6% voltage drop, IP00, screw terminals.

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

Specifications

4EP3701-0US00 — Inductance & Impedance
ParameterValue
Rated inductance0.0029H
Relative inductive voltage drop4.6%
4EP3701-0US00 — Identification
ParameterValue
Product designationNetzdrossel f. FU
4EP3701-0US00 — Electrical
ParameterValue
Rated operating voltage460, 460V
Number of phases3
Voltage typeAC
Rated operating frequency50 ... 60Hz
4EP3701-0US00 — Losses & Thermal
ParameterValue
Power loss, coil (W)45.1W
Power loss, iron core (W)6W
Rated ambient temperature40°C
4EP3701-0US00 — Approvals
ParameterValue
Thermal class (IEC 60085)B
4EP3701-0US00 — Mechanical
ParameterValue
Main-circuit connection typescrew-type terminals
IP protection ratingIP00
Height0.153m
Width0.178m
Depth0.105m

Product details

Its job is to smooth current harmonics, limit inrush, and protect the drive's rectifier from line-side transients — a standard fit for any 3-phase AC drive input. Rated at 9.9 A continuous with a maximum of 11 A. Rated operating voltage is 460 V AC, 50/60 Hz.

Thermal and environmental constraints

Ambient temperature rating is 40 °C with thermal class B insulation (130 °C hot-spot) per IEC 60085. This is the standard industrial temperature class; the choke can be mounted inside a ventilated enclosure without forced cooling as long as the ambient stays at or below 40 °C. Above that, derating applies — but the datasheet does not provide a derating curve, so the safe approach is to keep the enclosure ambient under 40 °C or provide airflow. Total power loss is 45.1 W in the coil and 6 W in the iron core. Protection class is IP00 — no enclosure. This is normal for a panel-mounted choke; it must be installed inside a cabinet that provides the required touch protection and environmental sealing. The screw-type terminals accept standard ring or fork lugs for the main power wiring.

Dimensions: 0.178 m width × 0.153 m height × 0.105 m depth.

Frequently asked questions

Will 4EP3701-0US00 drop into a panel specified for 5SY6020-7KL without rewiring?

No. The 5SY6020-7KL is a miniature circuit breaker (MCB) — a completely different component class. The 4EP3701-0US00 is a three-phase mains choke for drive input filtering. They serve different functions and have different wiring requirements; one does not substitute for the other.

MPN
4EP3701-0US00