Lovato P1RB1NC40AC300 RCBO with 40 A rated current, C tripping curve, Type AC 300 mA residual current protection and 10 kA breaking capacity.
Original price was: £87.81.£52.69Current price is: £52.69.
The Lovato P1RB1NC40AC300 is a compact residual current circuit breaker with overcurrent protection (RCBO) that provides combined protection against earth leakage, overloads and short circuits within a single modular device. Designed for modern electrical distribution systems, it offers dependable protection while reducing the number of separate protection devices required in the installation.
Featuring a 40 A rated current, C tripping curve and 300 mA Type AC residual current sensitivity, this RCBO is ideally suited to applications where equipment protection and fire prevention are the primary objectives. Type AC protection detects sinusoidal alternating residual currents typically produced by conventional AC loads.
With its 1P+N configuration, 10 kA short-circuit breaking capacity and compact two-module DIN rail design, the P1RB1NC40AC300 is suitable for residential, commercial and industrial installations requiring reliable circuit protection. It is manufactured in accordance with IEC/EN 61009-1 for dependable long-term performance.
The Lovato P1RB1NC40AC300 combines the functions of a miniature circuit breaker and residual current device within a single compact housing. It automatically disconnects the electrical supply whenever overloads, short circuits or earth leakage faults are detected, helping to minimise damage to electrical installations and connected equipment.
Its 300 mA Type AC residual current sensitivity is commonly selected for equipment protection and fire prevention, while the C tripping characteristic provides reliable protection for circuits supplying lighting, distribution equipment and other conventional AC electrical loads.
| Current | 40 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | Lovato Electric |
| Series | P1 RB |
| Model | P1RB1NC40AC300 |
| Product type | Residual current circuit breaker with overcurrent protection |
| Protection device | RCBO |
| Number of poles | 1P+N |
| DIN modules | 2 |
| Rated current | 40 A |
| Tripping curve | C |
| 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 |
| Maximum power dissipation per pole | 4 W |
| Operating temperature | -35 to +70 °C |
| Storage temperature | -40 to +80 °C |
| Maximum operating altitude | 2000 m |
| Mounting type | 35 mm DIN rail |
| Terminal tightening torque | 1.8 to 2 Nm |
| Conductor capacity | 1 to 25 mm² |
| Protection rating | IP20 |
| Pollution degree | 2 |
| Weight | approximately 205 g |
| Compliance | IEC/EN 61009-1 |
It protects electrical circuits against earth leakage, overloads and short circuits by combining RCD and miniature circuit breaker functions within one RCBO.
The device has a 40 A rated current and features a C tripping curve.
The 300 mA sensitivity is generally used for equipment protection and fire prevention where additional discrimination is required.
Type AC residual current protection detects sinusoidal alternating residual currents generated by conventional AC electrical circuits.
The P1RB1NC40AC300 clips directly onto a standard 35 mm DIN rail and occupies two DIN modules.
Lovato Electric modular protection devices are trusted worldwide by electrical contractors, OEM panel builders and industrial engineers for dependable circuit protection, straightforward installation and compliance with recognised international standards.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...