Power switch with thermal-magnetic trip unit DPX3 250 3P 250A 25kA 420209

DPX3 Power Circuit Breaker – Reliable Installation Protection

The DPX3 250 power circuit breaker is a three-pole device designed to protect electrical installations against overloads and short circuits. A rated continuous current of 250A and a high short-circuit breaking capacity of 25kA guarantee effective protection even in demanding conditions. The design based on a thermal-magnetic trip unit ensures precise and fast response to hazards, minimizing the risk of damage and downtime.

Construction and Application

The DPX3 250 circuit breaker is designed for mounting on a TH rail, which simplifies its installation and integration with existing switchboards. Its solid construction, compliant with safety standards, makes it an ideal solution for both professional installers and end-users looking for reliable protection. It can be used in a wide range of applications, from residential buildings to industrial facilities. Thanks to the possibility of mounting additional auxiliary contacts and overcurrent trip units, the circuit breaker can be adapted to the specific needs of a given installation.

Key Features and Benefits

• High short-circuit breaking capacity (25kA): Provides effective protection against the effects of sudden overvoltages and short circuits, protecting equipment and electrical infrastructure.
• Rated continuous current 250A: Allows for safe loading of the installation without the risk of overheating and damage to the circuit breaker.
• Thermal-magnetic trip unit: Reacts to both overloads (prolonged current exceeding) and short circuits (sudden current increase), providing comprehensive protection. Characteristic C allows it to react more slowly to short current surges, making it well-suited for starting devices with a motor.
• TH rail mounting: Facilitates quick and easy installation in standard electrical switchboards.
• Trip indication: Allows easy identification of the circuit breaker status – whether it has tripped due to an overload or short circuit.
• Expandability: Compatibility with additional auxiliary contacts and overcurrent trip units allows for customization of functionality to individual needs.
• Solid construction: Made of high-quality materials, guarantees durability and reliable operation for a long time.
• Overload trip unit setting range (200-250A): Allows precise adjustment of the circuit breaker sensitivity to the load characteristics.
• Protection degree IP30: Provides protection against touching with fingers and against the ingress of solid objects with a diameter greater than 2.5 mm.

The DPX3 250 circuit breaker is an investment in the safety and reliability of your electrical installation. It protects the circuit against overload and short circuit — like most circuit breakers in this class, but thanks to its high-quality workmanship and advanced features, it provides long-lasting protection and peace of mind.