Why Choose the IMO B6BRC1N20-30-A Type A RCBO?
The IMO B6BRC1N20-30-A is a compact Type A residual current circuit breaker with overcurrent protection (RCBO) designed to protect single-phase electrical circuits against overloads, short circuits and earth leakage faults. Combining multiple protective functions within one DIN rail-mounted device helps simplify distribution-board design while protecting wiring, equipment and users.
Its Type A residual-current characteristic enables the device to detect alternating sinusoidal residual currents and pulsating DC residual currents. This makes it suitable for modern electrical circuits containing electronic controls, LED drivers, switched-mode power supplies, appliances and other equipment that may produce non-sinusoidal leakage currents.
With a rated current of 20 A, a B curve overcurrent characteristic, 30 mA residual-current sensitivity and a 6 kA short-circuit breaking capacity, the B6BRC1N20-30-A is suitable for final-circuit protection in commercial, industrial and building-services installations.
Key Advantages
- Combines overload, short-circuit and residual-current protection.
- Type A fault-current detection for AC and pulsating DC residual currents.
- 20 A rated current for a wide range of final circuits.
- 30 mA sensitivity provides additional protection against electric shock.
- B curve tripping characteristic suits circuits with low to moderate inrush currents.
- Compact DIN rail format helps reduce distribution-board space requirements.
Key Features
- IMO B6 series Type A RCBO.
- 20 A nominal current rating.
- 30 mA rated residual operating current.
- Type A residual-current characteristic.
- B curve overcurrent characteristic.
- 6 kA short-circuit breaking capacity.
- 1 Pole + Neutral (1P+N) configuration.
- DIN rail mounting for distribution boards and control panels.
Combined Protection for Modern Electrical Installations
An RCBO combines the functions of a miniature circuit breaker and a residual-current device. It disconnects the protected circuit when it detects an overload, short circuit or potentially dangerous earth leakage current, providing comprehensive protection without requiring separate MCB and RCD devices.
The Type A characteristic makes the IMO B6BRC1N20-30-A suitable for circuits containing modern electronic equipment. These loads may produce pulsating DC residual currents that require appropriate Type A detection in addition to standard alternating-current fault detection.
Typical Applications
- Commercial electrical distribution boards.
- Industrial control panels.
- Socket-outlet and small-power circuits.
- Lighting and LED driver circuits.
- Building-services installations.
- OEM machinery and automation equipment.
