Power switch 3P, 40kA, TM release (thermal and magnetic regulation) EB2S 250/3HA 250A 3P 004671928

Power switch – reliable installation protection

This three-pole EB2S 250/3HA power switch with a rated current of 250A is a robust solution for securing electrical circuits. It provides effective protection against overloads and short circuits, which is crucial in both industrial and commercial installations. Its high short-circuit breaking capacity of 40kA at 400V guarantees safety even in the event of large voltage surges.

This switch features thermal and magnetic adjustment, allowing for precise adaptation to the specifics of the protected installation. Thermal adjustment (157.5…250A) allows setting the tripping threshold in case of prolonged overload, while magnetic adjustment (787.5…2750A) reacts immediately to sudden current surges, such as short circuits. This combination provides optimal protection and minimizes the risk of unnecessary circuit tripping.

Construction and mounting

The EB2S 250/3HA switch is designed for fixed mounting. It has screw connections, ensuring a secure and durable connection of the wires. The lever actuator facilitates operation and quick identification of the switch status – the tripping indicator informs about the activation of the protection. The IP20 degree of protection means that the device is protected against contact with fingers and solid objects larger than 12.5 mm, which is sufficient for most standard applications inside buildings.

Additionally, this switch offers the possibility of connecting a motor drive (optional), which may be useful in applications requiring remote control or automatic switching on after the cause of the disconnection has been removed. The lack of a built-in motor drive saves costs for those installations where it is not needed.