DPX3 250 HP+RCD 4P 40 A 36 kA circuit breaker 423049

Multifunctional circuit breaker with residual current protection

The DPX3 250 HP+RCD circuit breaker is an advanced solution combining the functions of an overcurrent breaker and a residual current device. It provides comprehensive protection for electrical installations against overloads, short circuits, and electric shock. Designed to protect circuits with a rated current of 40A, its high breaking capacity (36kA) ensures reliable operation even under demanding conditions.

Design and application

This four-pole circuit breaker is suitable for electrical installations in residential, commercial, and industrial buildings. The ability to connect main contacts via bolted connections simplifies installation and ensures secure electrical contact. The integrated earth fault protection enhances operational safety, while the absence of a requirement for TH rail mounting allows flexible adaptation to existing infrastructure. Additionally, the trip indicator enables quick identification of the device’s status.

Advantages and benefits

• Comprehensive protection: Integration of overcurrent breaker and residual current device in a single unit simplifies installation and ensures full safety.
• High breaking capacity: 36kA guarantees reliable operation even under high short-circuit currents, protecting the installation from damage.
• Flexible mounting: No need for TH rail mounting enables easy installation in various configurations.
• Precise settings: Adjustable thermal trip range (32-40A) and magnetic trip range (0-400A) allow customization to specific installation requirements.
• Status indication: Trip indicator signals when protection has activated, facilitating rapid fault location.
• Expandability: Optional motorized drive enables remote control of the circuit breaker.
• Three auxiliary switching contacts: Enable integration with control and signaling systems.
• Robust construction: Fixed mounting ensures durability and reliable long-term performance.