4EU3921-0AL00-0A SIEMENS

The 4EU3921-0AL00-0A is a three-phase commutation choke designed for converter applications, ensuring optimal performance and reliability. It is engineered to operate at a rated voltage (UN1) of 400V, making it suitable for a wide range of industrial power systems. With a maximum thermal current (ITHMAX 1) of 1040A at a frequency (F1) of 50Hz, this choke can handle substantial power loads efficiently. The rated current (I LN) is 936A, and the short-circuit voltage (UK) is 4%, indicating its robust design and ability to withstand transient conditions. Its inductance (LN) is 0.0225 mH, carefully chosen to provide the necessary impedance for effective commutation. The choke is designed to operate in ambient temperatures up to 40°C and is insulated to class H standards, ensuring safe and reliable operation even under demanding conditions. It has an IP00 protection rating, indicating that it is not protected against water or dust, and utilizes a flat connector for easy and secure electrical connections. Compliant with EN 61558-2-20 standards, this commutation choke meets stringent safety and performance requirements for power supply applications.