DPX3 125 HP+RCD 4P 100 A 50 kA circuit breaker 423678

Multifunctional switch with residual current protection

The DPX3 125 HP+RCD switch is a reliable and comprehensive solution for protecting electrical installations. It combines the functions of an overload circuit breaker and a residual current device (RCD), providing effective protection against overloads, short circuits, and electric shock. Its four-pole design and high short-circuit breaking capacity (50 kA) make it an ideal choice for both commercial and industrial applications.

Construction and application

The device is complete, supplied in an enclosure, and ready for installation. Designed for operation in circuits with a rated voltage of 220 to 690 V and a continuous current up to 100 A. The built-in thermal-magnetic overload trip with adjustable setting range of 80–100 A allows precise adaptation to load characteristics. Additionally, the integrated residual current protection enhances safety by guarding against insulation faults or accidental contact with live conductors. This makes it a universal solution suitable for protecting various types of circuits – lighting, socket, and motor circuits.

Key features and benefits

• Combined functions: Overload breaker and RCD in a single device – saves space and simplifies installation.
• High short-circuit breaking capacity: 50 kA at 400 V ensures effective protection even under high fault currents.
• Adjustable overload current setting: Range of 80–100 A allows fine-tuning to load specifics and prevents unnecessary tripping.
• Trip indicator: Quick identification of device status – aids in fault diagnosis.
• Pins connection: Ensures secure and durable conductor connections.
• IP30 protection rating: Protection against finger contact and solid objects larger than 2.5 mm – enhanced operational safety.
• Two auxiliary switching contacts: Enable connection of status signaling or remote control.
• Safety: Integrated protection against earth fault short circuits minimizes the risk of electric shock.