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P1RB1NC20AC300 – RCBO 1P+N CURVE C 20A IDN 300MA TYPE AC
Lovato P1RB1NC20AC300 residual current circuit breaker with overcurrent protection, featuring a 1P+N configuration, 20 A rated current, C tripping characteristic, Type AC 300 mA residual current protection and 10 kA breaking capacity.
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.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole + N | |
| Device Type | RCBO | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Residual Current | 300 mA | |
| RCD Type | Type AC | |
| Manufacturer | Lovato Electric | |
| Series | P1RB | |
| Model | P1RB1NC20AC300 | |
| Product type | Residual current circuit breaker with overcurrent protection | |
| Product abbreviation | RCBO | |
| Pole configuration | 1P+N | |
| Total number of poles | 2 | |
| Number of protected poles | 1 | |
| Rated current | 20 A | |
| Tripping characteristic | C curve | |
| Residual current type | Type AC | |
| Rated residual operating current | 300 mA | |
| Rated operational voltage | 230 V AC | |
| Rated insulation voltage (Ui) | 400 V | |
| Rated impulse withstand voltage (Uimp) | 4 kV | |
| Rated frequency | 50 / 60 Hz | |
| Short-circuit breaking capacity | 10 kA | |
| Number of DIN modules | 2 | |
| Built-in depth | 66 mm | |
| Protection rating | IP20 | |
| Pollution degree | 2 | |
| Overvoltage category | III | |
| Mounting type | DIN rail mounting | |
| Applicable standard | IEC/EN 61009-1 | |
| Certifications | TÜV Rheinland and EAC |
Frequently Asked Questions
What is the Lovato P1RB1NC20AC300 used for?
It provides combined protection against overloads, short circuits and Type AC earth leakage faults in single-phase electrical distribution and control systems.
What is the rated current of this RCBO?
The P1RB1NC20AC300 has a rated current of 20 A and uses a C tripping characteristic.
What residual current sensitivity does it provide?
This RCBO has a rated residual operating current of 300 mA, making it suitable for equipment, circuit and fire-risk protection applications.
What does Type AC residual current protection mean?
Type AC protection detects sinusoidal alternating residual currents and is intended for circuits containing compatible conventional AC electrical loads.
What is the breaking capacity of the P1RB1NC20AC300?
The device has a rated short-circuit breaking capacity of 10 kA.
How much DIN rail space does this RCBO require?
The P1RB1NC20AC300 occupies two DIN modules and uses a 1P+N pole configuration.
Trusted by Electrical Professionals
Lovato Electric circuit protection products are used by electrical engineers, panel builders and installation professionals seeking dependable performance, straightforward installation and effective protection for commercial and industrial electrical systems.
