Power switch with electronic trip unit DPX3 250 EL 4P 250A 25kA 420319

### Power circuit breaker – reliable protection for electrical installations

This four-pole power circuit breaker with electronic trip unit from the DPX3 series, with a rated current of 250A and a short-circuit breaking capacity of 25kA, is a solid solution for both demanding industrial installations and advanced systems in commercial buildings. Designed by Legrand, it provides effective protection against overloads and short circuits, guaranteeing safety and minimizing the risk of failure.

### Functionality and application

The DPX3 250 EL circuit breaker is designed for mounting on a TH rail, which simplifies its installation and integration with existing systems. Its versatility allows it to be used in a wide range of applications – from protecting lighting and socket circuits to protecting electric motors and other high-power devices. The built-in undervoltage release further increases safety by reacting to abnormalities in the supply voltage. The electronic trip unit provides precise and fast response to disturbances, which translates into a longer lifespan of the installation and devices.

### Design features and benefits

* **High short-circuit breaking capacity (25kA):** Ensures effective protection even in the event of high short-circuit currents, minimizing damage to the installation.

* **Overload trip unit setting range (100-250A):** Allows you to adapt the circuit breaker characteristics to the specific needs of a given circuit, protecting it against overloads of different values.

* **Delayed short-circuit trip unit (150-2500A):** Allows for short-term overloads without unnecessary tripping of the circuit, which is particularly important when starting devices with electric motors.

* **Possibility of mounting additional auxiliary contacts:** Expands the functionality of the circuit breaker, allowing remote monitoring of its status or connection to control systems.

* **Solid construction:** Guarantees reliable operation in difficult operating conditions.

* **Screw connection:** Ensures a secure and durable connection of wires to the circuit breaker.

* **Wide rated voltage range (220-690V):** Allows use in different electrical networks.

* **Protection degree IP30:** Protects against finger contact and the ingress of solid objects larger than 2.5 mm – suitable for most standard indoor applications.

Thanks to this circuit breaker, you can count on stable operation of the electrical installation for years to come. The electronic trip unit is not only precise operation, but also the possibility of configuring the device's operating parameters, adapting them to the specifics of the protected circuit. Mounting on a TH rail saves time and space in the switchgear cabinet.