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P1MB3PB20 – MINIATURE CIRCUIT BREAKER 3P CURVE B 20A
Lovato P1MB3PB20 three-pole miniature circuit breaker with a 20 A rated current, B tripping curve and 10 kA breaking capacity for industrial and commercial circuit protection.
£50.55
Why Choose the Lovato P1MB3PB20 Miniature Circuit Breaker?
The Lovato P1MB3PB20 is a high-quality three-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial and commercial electrical installations. Part of the reliable Lovato P1MB modular protection range, it combines compact dimensions with excellent electrical performance, making it ideal for switchboards, distribution panels and OEM machinery.
With a 20 A rated current, B tripping characteristic and a 10 kA short-circuit breaking capacity, the P1MB3PB20 delivers rapid fault protection for circuits with relatively low inrush currents. Its three-pole design allows simultaneous isolation of all phases, helping improve both safety and system reliability.
Designed for use on 230/400 V AC systems, this compact breaker occupies just three DIN modules and mounts directly onto a standard 35 mm DIN rail. Its robust construction and compliance with recognised international standards make it suitable for demanding industrial environments.
Key Advantages
- Reliable 3-pole miniature circuit breaker for three-phase installations.
- 20 A rated current suitable for industrial and commercial circuits.
- B tripping characteristic for circuits with low inrush currents.
- 10 kA breaking capacity provides dependable fault protection.
- Compact 3 DIN module design saves enclosure space.
- Simple installation onto a standard 35 mm DIN rail.
- Long mechanical and electrical operating life.
- Manufactured by trusted automation specialist Lovato Electric.
Key Features
- Lovato P1MB miniature circuit breaker series.
- 3 poles (3P).
- 20 A rated current.
- B tripping curve.
- 10 kA short-circuit breaking capacity.
- 230/400 V AC rated operational voltage.
- 440 V insulation voltage (Ui).
- 4 kV impulse withstand voltage (Uimp).
- Current limiting class 3.
- Thermal and magnetic trip mechanism.
- 35 mm DIN rail mounting.
- IP20 frontal protection.
Reliable Circuit Protection for Industrial Installations
Miniature circuit breakers automatically disconnect electrical circuits whenever overload or short-circuit conditions occur, helping protect wiring, electrical equipment and connected machinery. Combining thermal overload protection with instantaneous magnetic tripping provides dependable circuit protection under normal operating conditions.
The Lovato P1MB3PB20 is engineered for industrial automation systems, OEM machinery, switchboards and commercial electrical installations where reliable overcurrent protection, compact dimensions and long operating life are essential.
Typical Applications
- Industrial control panels.
- Three-phase distribution boards.
- OEM machinery.
- Automation systems.
- Commercial electrical installations.
- Building services.
- Production equipment.
- General electrical protection circuits.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 20 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | Lovato Electric | |
| Series | P1MB | |
| Model | P1MB3PB20 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 3P | |
| Rated current | 20 A | |
| Tripping characteristic | B | |
| Breaking capacity | 10 kA | |
| Rated operational voltage | 230/400 V AC | |
| Rated insulation voltage (Ui) | 440 V | |
| Rated impulse withstand voltage (Uimp) | 4 kV | |
| Frequency | 50 / 60 Hz | |
| Current limiting class | 3 | |
| DIN modules | 3 | |
| Mounting type | 35 mm DIN rail | |
| Mechanical life | 20,000 operations | |
| Electrical life | 10,000 operations | |
| Operating temperature | -40°C to +70°C | |
| Storage temperature | -40°C to +80°C | |
| Maximum altitude | 2,000 m | |
| Terminal capacity | 1 to 35 mm² | |
| Terminal tightening torque | 1.8 to 2 Nm | |
| Protection rating | IP20 | |
| Weight | Approx. 345 g | |
| HS Code | 85362010 |
Frequently Asked Questions
What is the Lovato P1MB3PB20 used for?
It protects three-phase electrical circuits against overloads and short circuits in industrial, commercial and OEM applications.
What is the rated current?
The P1MB3PB20 has a 20 A rated current.
What tripping characteristic does this breaker use?
This model features a B tripping curve, making it suitable for circuits with relatively low inrush currents.
What is the breaking capacity?
The breaker provides a 10 kA short-circuit breaking capacity.
How is the breaker installed?
The P1MB3PB20 mounts directly onto a standard 35 mm DIN rail and occupies three DIN modules.
Trusted by Electrical Professionals Worldwide
Lovato miniature circuit breakers are trusted by panel builders, OEM manufacturers and electrical contractors for dependable circuit protection, long operating life and reliable performance across industrial and commercial electrical installations.
