Residual Current Protection Switches
• Suitable for power supply systems up to 240/415V AC.
• Type AC: Protects against sinusoidal AC residual currents.
• Type A: Protects against sinusoidal AC and pulsating DC residual currents.
•
Type B: Covers
Type AC/A protection and adds
smooth DC residual current protection.
BOCB Applications by Residual Current:
• 30mA: Personal safety, fire protection, and direct contact scenarios.
• 10mA: High-risk personal safety applications and outdoor residential installations.
•
300mA: Prevents fires caused by insulation faults.
Features
• Ergonomic handle design with clear ON/OFF position indication.
• Finger-safe terminals supporting 35mm² wiring capacity.
• Tool-free installation/removal.
• Top/bottom feed for reliable conductor/busbar connections.
• Full compatibility with MCB accessories.
• Short-time delay type: ~10ms delayed tripping resists transient interference, ensuring operational continuity.
• Selective type: Coordinates with instantaneous/short-delay downstream RCBOs; withstands >5kA surge currents (8/20μs waveform).
• SIGRES type: For harsh environments (indoor pools, chemical industries). Anti-condensation patent technology extends service life.