Lovato P1RB1NC40A300 RCBO with 40 A rated current, 300 mA Type A residual current protection, C tripping curve and 10 kA breaking capacity.
Original price was: £109.04.£65.43Current price is: £65.43.
The Lovato P1RB1NC40A300 is a high-performance residual current circuit breaker with overcurrent protection (RCBO) engineered to provide dependable protection against earth leakage, overloads and short circuits. Combining the functions of an RCD and miniature circuit breaker into a single compact device, it delivers comprehensive circuit protection while saving valuable space within electrical distribution boards.
Featuring a 40 A rated current, C tripping curve and 300 mA Type A residual current protection, this RCBO is well suited to applications where equipment protection and fire prevention are required rather than additional personal protection. Type A technology detects both alternating residual currents and pulsating DC residual currents generated by modern electronic equipment.
With its 1P+N configuration, 10 kA breaking capacity and compact two-module design, the P1RB1NC40A300 is ideal for commercial, industrial and building service installations. Manufactured to IEC/EN 61009-1, it provides reliable long-term protection in demanding electrical environments.
The Lovato P1RB1NC40A300 combines residual current protection and overcurrent protection in a single modular device. It disconnects the circuit whenever dangerous earth leakage, overload or short-circuit conditions occur, helping protect electrical equipment and installation wiring.
Its 300 mA Type A residual current rating is commonly selected where discrimination or equipment protection is required, while the C curve characteristic allows reliable operation on circuits supplying motors, lighting and equipment with moderate starting currents.
| Current | 40 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | Lovato Electric |
| Series | P1 RB |
| Model | P1RB1NC40A300 |
| Product type | Residual current circuit breaker with overcurrent protection |
| Protection device type | RCBO |
| Number of poles | 1P+N |
| DIN modules | 2 |
| Rated current | 40 A |
| Tripping curve | C |
| Residual current characteristic | Type A |
| 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 (front) |
| Pollution degree | 2 |
| Dimensions (H × W × D) | approximately 82 × 36 × 66 mm |
| Weight | approximately 205 g |
| Compliance | IEC/EN 61009-1 |
It protects electrical circuits against earth leakage, overloads and short circuits by combining RCD and circuit breaker functions within one compact RCBO.
This RCBO has a 40 A rated current with a C tripping curve.
A 300 mA residual current rating is typically used for equipment protection and fire prevention applications where additional discrimination is required.
The device provides Type A protection, detecting both AC residual currents and pulsating DC residual currents generated by many modern electronic loads.
The P1RB1NC40A300 clips directly onto a standard 35 mm DIN rail and occupies two DIN modules within a distribution board.
Lovato Electric modular protection devices are trusted worldwide by panel builders, electrical contractors 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...