Doepke DRCBO 4 B16/0.03/1N-B SK Residual Current Circuit Breaker with Overcurrent Protection, 1P+N, 16 A, 30 mA, Type B, B-Curve, 6 kA, 2 Modules 09949104

Doepke's DRCBO 4 B16/0.03/1N-B SK sets a new benchmark for combined protection in modern electrical installations. Unlike conventional RCBOs that often compromise on residual current detection, this device integrates a Type B all-current sensitive RCD with a B-curve miniature circuit breaker in a single compact unit. It safeguards against both sinusoidal AC and pulsating DC residual currents, as well as smooth DC faults, making it indispensable for circuits with electronic loads, frequency converters, or EV charging infrastructure.

Highlights

• Combined residual current protection (30 mA, Type B) and overcurrent protection (B-curve, 16 A) in one module.
• Type B RCD detects AC, pulsating DC, and smooth DC residual currents for comprehensive safety.
• Rated breaking capacity of 6 kA ensures reliable interruption of short-circuit currents.
• Compact 2-module width (36 mm) saves space on DIN rails in distribution boards.
• Lift terminals accommodate conductors up to 25 mm² solid or 16 mm² flexible.
• Suitable for ambient temperatures from -25 °C to +40 °C, ensuring dependable operation in harsh environments.

In daily use

Installers appreciate the straightforward wiring and clear labeling of the DRCBO 4. Its 1P+N configuration protects the phase conductor while also switching the neutral, preventing dangerous neutral faults. The device is ideal for residential, commercial, and industrial applications where both personal protection and equipment safety are required. Whether protecting a single circuit with electronic ballasts, a three-phase sub-distribution, or a charging point for electric vehicles, this RCBO delivers consistent performance. The B-curve characteristic provides fast tripping on short circuits while avoiding nuisance trips from inrush currents of common loads.

Full specifications

• Device type: Residual current circuit breaker with overcurrent protection (RCBO)
• Number of poles: 1P+N (switched neutral)
• Rated current (In): 16 A
• Rated residual operating current (IΔn): 30 mA
• Tripping characteristic: B-curve
• RCD type: Type B (all-current sensitive)
• Rated voltage (Un): 230 V AC
• Rated frequency: 50/60 Hz
• Rated breaking capacity (Icn): 6 kA
• Short-circuit current rating (Ics): 6 kA
• Surge current withstand capability: 3 kA
• Mounting type: DIN rail
• Module width: 2 modules (36 mm)
• Terminal type: Lift terminals
• Max. conductor cross-section (solid): 25 mm²
• Max. conductor cross-section (flexible): 16 mm²
• Degree of protection: IP20 (terminals)
• Operating temperature range: -25 °C to +40 °C

Final note

For circuits demanding the highest level of residual current protection without sacrificing overcurrent performance, the Doepke DRCBO 4 B16/0.03/1N-B SK is the professional choice. Its Type B sensitivity and robust construction ensure long-term reliability and compliance with current installation standards.