What it is and what it does
The Siemens 4EU3022-8BA00-0AA0 is a commutating choke (line reactor) for converter duty, designed to limit di/dt and smooth commutation notches on the AC input of a 3-phase drive or rectifier. It carries a maximum continuous current of 224 A at 50 Hz, with a rated operating current of 202 A and a peak current capability of 280 A. At DC the rated value is 274.5 A, so it also fits DC-link applications where the ripple current stays within the inductor's thermal budget.
Key ratings and what they mean for fit
Rated for 690 V AC line-to-line, with an operating frequency of 50 to 60 Hz — covers standard 400 V and 690 V industrial mains without derating. The 0.17 mH inductance (170 µH) and 4 % relative inductive voltage drop at rated current define the impedance; this is the figure that governs how much harmonic current the choke attenuates. A 4 % drop is typical for a commutating choke — it limits notching without dropping excessive voltage under load. Total power loss is 330 W (220 W coil loss + 110 W iron core loss) at the rated operating point. Thermal class H per IEC 60085 means the insulation system withstands 180 °C hot-spot temperature, so the choke can run hot in a confined cabinet as long as the ambient stays at or below 40 °C. The IP00 enclosure means it is an open-frame component — it must be mounted inside a panel or enclosure that provides the touch-safe and environmental protection.
Mounting and connection
Physical footprint is 0.300 m wide × 0.269 m high × 0.211 m deep. The main circuit connects via flat-type terminals (bus-bar or crimp lug), not screw-clamp or spring-cage — plan for a bus-bar interface or flat-pin female connectors. The choke is a three-phase device (3 phases), so all three line conductors pass through the single core.