SIEMENS 4EP4003-0DS00

Siemens Line Reactor 90A, 0.224mH – 4EP4003-0DS00 Description The Siemens 4EP4003-0DS00 is a high-performance three-phase commutating reactor from the SIDAC-D series. It is engineered to limit current surges and reduce harmonics in 400V/50Hz power systems, commonly used with frequency converters and other power electronics. With a nominal current of 90A and an inductance of 0.224mH, it provides essential protection and improves the power quality of your industrial applications. Order now from profideals for expert support and fast delivery. Specifications Manufacturer: Siemens Type Number: 4EP4003-0DS00 Product Family: SIDAC-D Nominal Current (ILn): 90A Maximum Current (Imax): 125A Inductance (Lx): 0.224 mH Rated Voltage: 400V Frequency: 50Hz Phases: 3 Weight: 10.4 kg Label Info Associated Product: Siemens 3VF3211-1BU41-0AA0 / 120A Ambient Temperature (ta): 40 deg C Resistance (R): 3x 1.39mOhm +/-10% Standards: EN 61558, cRUus, CE Application This line reactor is ideal for use in drive technology, power supplies, and with thyristor-based converters to smooth current and protect sensitive electronic components from line disturbances. Country of Origin Made in Germany. CO2 Impact Choosing this pre-owned Siemens line reactor prevents the emission of an estimated 416 kg of CO2 compared to manufacturing a new one. This saving is equivalent to driving a car for over 2000 kilometers. Availability This item is in stock and ready for immediate dispatch. FAQ Question?What is the primary application for this 4EP4003-0DS00 reactor? Answer:This is a commutating or line reactor, primarily used with thyristor-based converters or frequency drives to limit the rate of current rise (di/dt), reduce line harmonics, and protect the power electronics from voltage spikes. Question?The label mentions “3VF3211-1BU41-0AA0”. What is the significance of this part number? Answer:This part number corresponds to a Siemens SENTRON 3VF3 series circuit breaker. The reactor is likely designed and rated to work in conjunction with this specific 120A circuit breaker for a complete and coordinated protection scheme. Question?Is this reactor suitable for a 60Hz system? Answer:The label explicitly states 400V 50Hz. While it may function on a 60Hz system, its inductive reactance will be 20% higher (X_L = 2*pi*f*L). This would need to be carefully evaluated for the specific application to ensure it does not negatively impact system performance or voltage drop. Friday, March 13, 2026 profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners.