Why Choose the Lovato P1RB1NC20AC300 RCBO?
The Lovato P1RB1NC20AC300 is a compact and reliable residual current circuit breaker with overcurrent protection (RCBO) designed to provide combined protection against overloads, short circuits and earth leakage faults. Part of the Lovato Electric P1RB series, it combines miniature circuit breaker and residual current protection functions within one modular device.
By integrating overcurrent and residual current protection, the P1RB1NC20AC300 helps simplify distribution board layouts, reduce installation time and conserve valuable DIN rail space. Its 1P+N configuration protects the phase conductor while simultaneously switching the neutral conductor, making it suitable for single-phase electrical distribution systems.
With a rated current of 20 A, a C tripping characteristic, Type AC residual current detection and a rated residual operating current of 300 mA, this RCBO is suitable for equipment, circuit and fire-risk protection applications. Its 10 kA short-circuit breaking capacity provides dependable fault interruption in commercial and industrial electrical installations.
Key Advantages
- Combined protection against overloads, short circuits and earth leakage faults.
- 20 A rated current for single-phase electrical circuits.
- C tripping characteristic suitable for loads with moderate starting currents.
- Type AC residual current protection for sinusoidal alternating leakage currents.
- 300 mA residual operating current for equipment and fire-risk protection applications.
- 10 kA breaking capacity for dependable short-circuit fault interruption.
- Compact two-module DIN rail design for efficient panel installation.
Key Features
- Lovato Electric P1RB series.
- Residual current circuit breaker with overcurrent protection.
- 1P+N pole configuration.
- 20 A rated current.
- C curve overcurrent characteristic.
- Type AC residual current characteristic.
- 300 mA rated residual operating current.
- 10 kA short-circuit breaking capacity.
- Simultaneously switched neutral conductor.
- Compliant with IEC/EN 61009-1.
Reliable Combined Circuit Protection
The Lovato P1RB1NC20AC300 combines thermal-magnetic overcurrent protection with residual current monitoring. It disconnects the protected circuit when an overload, short circuit or qualifying AC earth leakage fault is detected, helping protect wiring, connected equipment and the wider electrical installation.
Its 300 mA residual current sensitivity is generally selected for equipment protection, insulation fault monitoring and reducing risks associated with earth leakage and electrical fires. It is not normally used as a substitute for a 30 mA device where additional personal protection is required.
Typical Applications
- Commercial electrical distribution boards.
- Industrial power distribution systems.
- Machinery and automation control panels.
- Equipment feeder circuits.
- Lighting and general power circuits.
- Building services electrical installations.
- Circuits requiring combined overcurrent and AC earth leakage protection.
