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P1MB4PB20 – MINIATURE CIRCUIT BREAKER 4P CURVE B 20A
Lovato P1MB4PB20 four-pole miniature circuit breaker with a 20 A rated current, Type B tripping characteristic and 10 kA short-circuit capacity.
£81.40
Why Choose the Lovato P1MB4PB20 Miniature Circuit Breaker?
The Lovato P1MB4PB20 is a reliable four-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. Part of the Lovato Electric P1MB modular protection range, it combines dependable thermal-magnetic tripping with a compact DIN rail format suitable for commercial, industrial and machine-building applications.
This miniature circuit breaker features a rated current of 20 A, a Type B tripping characteristic and a rated short-circuit breaking capacity of 10 kA. The Type B response is particularly suitable for circuits with relatively low starting currents, including resistive loads, heating systems, lighting equipment and general electrical distribution circuits.
With four mechanically linked poles, the P1MB4PB20 provides simultaneous disconnection across a three-phase and neutral circuit. Its four-module housing mounts directly onto a standard DIN rail, supporting straightforward installation within distribution boards, switchgear assemblies and industrial control panels.
Key Advantages
- Dependable overload and short-circuit protection.
- Four-pole configuration for coordinated circuit isolation.
- 20 A rated current for commercial and industrial circuits.
- Type B tripping characteristic for loads with low inrush currents.
- High 10 kA short-circuit breaking capacity.
- Compact four-module construction for efficient panel installation.
Key Features
- Lovato Electric P1MB miniature circuit breaker series.
- Four-pole thermal-magnetic circuit breaker.
- 20 A rated operational current.
- Type B instantaneous tripping curve.
- 10 kA rated short-circuit capacity.
- Four DIN modules wide.
- Positive contact position indication.
- Standard DIN rail mounting for modular electrical panels.
Reliable Four-Pole Circuit Protection
Miniature circuit breakers automatically interrupt an electrical supply when an overload or short circuit is detected. Thermal protection responds to sustained excessive current, while the magnetic mechanism provides rapid disconnection during high-current short-circuit conditions.
The Lovato P1MB4PB20 combines a Type B tripping curve with four-pole isolation, making it suitable for three-phase circuits where all conductors must be disconnected together. This helps protect wiring and connected equipment while improving safety during fault finding and maintenance.
Typical Applications
- Three-phase electrical distribution boards.
- Industrial machinery and control panels.
- Commercial lighting and power circuits.
- Electric heating and resistive loads.
- Building services installations.
- OEM automation and switchgear systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 20 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | Lovato Electric | |
| Series | P1MB | |
| Model | P1MB4PB20 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 4 | |
| Number of DIN modules | 4 | |
| Rated current | 20 A | |
| Tripping characteristic | Type B | |
| Rated short-circuit capacity | 10 kA | |
| Rated operational voltage | 230 / 400 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Mounting type | DIN rail mounting | |
| Tripping technology | Thermal-magnetic | |
| Weight | 460 g | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 and CSA C22.2 No. 235 | |
| HS Code | 85362010 |
Frequently Asked Questions
What is the Lovato P1MB4PB20 used for?
The Lovato P1MB4PB20 protects electrical wiring and connected equipment against overloads and short circuits in commercial, industrial and machine-building applications.
What is the rated current of the P1MB4PB20?
This miniature circuit breaker has a rated operational current of 20 A.
What does the Type B tripping characteristic mean?
A Type B circuit breaker is intended for circuits with relatively low inrush currents, such as resistive loads, lighting circuits and general electrical distribution equipment.
What is the breaking capacity of this circuit breaker?
The Lovato P1MB4PB20 has a rated short-circuit breaking capacity of 10 kA.
How many poles and DIN modules does the P1MB4PB20 have?
The circuit breaker has four poles and occupies four DIN modules within an electrical panel.
Trusted Electrical Protection from Lovato Electric
Lovato Electric miniature circuit breakers are widely used by electrical contractors, panel builders and automation engineers to provide reliable circuit protection and safe isolation within modern electrical installations.
