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Siemens 4EU2551-5UA00-0A — Line/Load Reactors

Siemens 4EU2551-5UA00-0A Mains Choke, 225A, 3-Phase, 480V

MPN4EU2551-5UA00-0A

Siemens 4EU2551-5UA00-0A Netzdrossel f. FU, 3-phase mains choke, 225 A rated current, 250 A max, 480 V AC, 50/60 Hz, IP00, flat-type terminals.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

4EU2551-5UA00-0A specifications
ParameterValue
Type of voltageAC
Type of electrical connection for main current circuitflat connector
Operating voltage rated value400, 480V
Relative inductive drop in voltage on the measurement level current, voltage and frequency2%
Operating frequency rated value50 ... 60Hz
Phase number3
Ambient temperature rated value40°C
Depth0.176m
Width0.225m
Height0.21m
Thermal class acc. to IEC 60085H
Rated value225A
Protection class IPIP00
Inductivity rated value0.000056H

Product details

The 4EU2551-5UA00-0A: Rated 225 A continuous with a 250 A ceiling — that's the thermal limit at 40 °C ambient, Class H insulation (185 °C hot-spot). If your drive's continuous input current is under 225 A and the peak doesn't exceed 250 A, this choke will survive the route. The 2% voltage drop at rated current is the sweet spot for most general-purpose VFD applications; it's enough inductance to smooth the line notches without dropping so much voltage that the drive undervolts on a sag. IP00 means it's an open-frame component — no enclosure. It's meant to live inside a panel or drive cabinet, not out on the wet floor. The flat-type terminals (flat connectors) accept bus bar or heavy cable lugs; plan your panel wiring accordingly.

The dimensions are 0.225 m wide, 0.21 m tall, and 0.176 m deep — about a 9 by 8 by 7-inch block. That's a substantial reactor; it needs dedicated panel space and structural support, not just a DIN rail clip. The flat-type terminals are sized for bolted connections; torque them to the lug manufacturer's spec. Mount it close to the drive input to minimize radiated noise from long unshielded cable runs between choke and drive.

Frequently asked questions

Where can I buy the 4EU2551-5UA00-0A and what is the lead time?

We source the 4EU2551-5UA00-0A to order through independent distribution. Submit an RFQ and we'll confirm current availability and lead time at quote — no stock figures on the page, but we'll get you a firm answer fast.

What are the key electrical ratings for this choke?

Three-phase, 225 A rated continuous (250 A max), 400/480 V AC, 50/60 Hz, with a 2% inductive voltage drop at rated current. Thermal class H insulation rated for 40 °C ambient.

What is the physical size of the 4EU2551-5UA00-0A?

The choke measures 0.225 m wide, 0.21 m high, and 0.176 m deep. It's an open-frame (IP00) component with flat-type terminals for bolted connections.

MPN
4EU2551-5UA00-0A