The Siemens 4EP3801-4DS00 is a 3-phase commutating choke for converter applications, rated 500V AC operating voltage with a maximum continuous current of 28A and a rated current of 25.2A at 50 Hz. Inductance is 0.0013H with a 4% relative inductive voltage drop at rated conditions. This is an open-frame (IP00) component with screw-type terminals for the main circuit — it lives inside a panel or cabinet, not on the wall.
What the ratings mean for fit
The 28A maximum / 25.2A rated current at 50 Hz sets the thermal limit for continuous converter-side current. The 4% inductive voltage drop at rated current tells you the choke's impedance under load — a standard value for line reactors in this class, meaning it will smooth current ripple without dropping excessive voltage across the choke. The 500V AC operating voltage covers 400V and 480V line supplies with headroom. DC rated current is 34.3A, so it also handles DC-link applications at that level.
Deployment context
IP00 means no ingress protection — mount this inside a ventilated cabinet or panel enclosure where it's protected from dust and moisture. The 0.153m height, 0.178m width, and 0.12m depth footprint fits standard cabinet layouts; screw terminals accept copper conductors for the main circuit. Thermal class B (130°C insulation system per IEC 60085) means the winding insulation is rated for 130°C continuous, which is typical for industrial chokes in converter duty.