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Looking for the most advanced protection against electric shock for modern three-phase systems in your home, office, or industrial facility? The four-pole (4P) RCCB / RCD Type A with a high sensitivity of 0.03 A (30 mA), with a short-circuit capacity of 6000 A (6 kA), represents the ultimate safety standard for contemporary three-phase installations.
While conventional breakers fall short with modern loads, Type A guarantees complete protection even in properties equipped with advanced electronics, power converters, and inverters.
Why Choose a 4-Pole 30 mA Type A RCCB (6 kA)?
- Advanced Detection – Type A Technology: Unlike standard Type AC breakers that only detect sinusoidal AC fault currents, Type A reliably detects pulsating DC residual currents as well. This makes it an essential requirement for three-phase properties with modern equipment like heat pumps, inverter air conditioners, three-phase EV chargers, induction hobs, and industrial drives with variable frequency drives (VFDs).
- Life-Saving 30 mA (0.03 A) Sensitivity: The gold standard for direct personal protection against electric shock. It trips in milliseconds to disconnect power upon direct contact with live parts or insulation failure.
- Complete Three-Phase Coverage (4-Pole Design): Simultaneously monitors all three phases (L1, L2, L3) and the neutral conductor (N), ensuring uniform protection across the entire three-phase and single-phase electrical network.
- 25 A: Excellent for smaller three-phase sub-distribution panels, individual three-phase circuits, or workshop lines.
- 6000 A (6 kA) Short-Circuit Capacity: Offers exceptional durability and mechanical strength during heavy grid short-circuit events, protecting internal contacts and extending equipment service life.
Key Advantages & Quality Features
- Future-Proof Safety: Delivers complete protection where older breaker types (Type AC) remain “blind” to DC fault components generated by modern electronic loads.
- Uncompromised Speed and Security: Instantly interrupts the circuit upon detecting hazardous leakage currents, directly saving lives and preventing severe injury hazards.
- Complete Four-Pole Isolation: Simultaneously disconnects all three phases and the neutral conductor upon fault detection, offering full system isolation for maximum maintenance safety.
- Premium Construction & Thermal Resistance: High-density, self-extinguishing housing ensures long-term operational reliability even under continuous high thermal and mechanical loads.
- Integrated TEST Button: Enables quick and simple periodic testing of the internal tripping mechanism without requiring specialized tools.
- Simple DIN-Rail Installation (4 Modules): Features a standardized footprint for quick, solid mounting on DIN rails across all distribution boards.























