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P1MB4PB50 – MINIATURE CIRCUIT BREAKER 4P CURVE B 50A
Lovato P1MB4PB50 four-pole miniature circuit breaker with a 50 A rated current, Type B tripping characteristic and 10 kA short-circuit breaking capacity.
£92.97
Why Choose the Lovato P1MB4PB50 Miniature Circuit Breaker?
The Lovato P1MB4PB50 is a robust 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 operation with a compact DIN rail format suitable for commercial, industrial and machine-building applications.
This miniature circuit breaker features a 50 A rated current, a Type B tripping characteristic and a rated short-circuit breaking capacity of 10 kA. Its Type B response makes it suitable for circuits with relatively low inrush currents, including resistive loads, electric heating, lighting systems and general electrical distribution equipment.
With four mechanically linked poles, the P1MB4PB50 provides simultaneous isolation of all conductors during overload or short-circuit conditions. Its four-module housing mounts onto a standard 35 mm 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.
- 50 A rated current for higher-current electrical 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.
- 50 A rated operational current.
- Type B instantaneous tripping curve.
- 10 kA rated short-circuit capacity.
- Four DIN modules wide.
- Positive contact position indication.
- Standard 35 mm DIN rail mounting.
Reliable Four-Pole Circuit Protection
Miniature circuit breakers automatically interrupt the electrical supply whenever an overload or short circuit is detected. Thermal protection responds to prolonged excessive current, while magnetic protection provides rapid disconnection during high-current fault conditions.
The Lovato P1MB4PB50 combines a Type B tripping curve with simultaneous four-pole isolation, making it suitable for multiphase circuits where dependable protection and complete conductor disconnection are required. Its 10 kA fault-current rating provides robust protection for suitably designed commercial and industrial electrical installations.
Typical Applications
- Three-phase and neutral distribution boards.
- Industrial machinery and control panels.
- Commercial electrical distribution systems.
- Electric heating and resistive loads.
- Building services installations.
- OEM automation and switchgear assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 50 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | Lovato Electric | |
| Series | P1MB | |
| Model | P1MB4PB50 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 4 | |
| Number of DIN modules | 4 | |
| Rated current | 50 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 | |
| Rated frequency | 50 / 60 Hz | |
| Mounting type | 35 mm DIN rail | |
| Tripping technology | Thermal-magnetic | |
| Front protection rating | IP20 | |
| Mechanical life | 20,000 cycles | |
| Weight | Approx. 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 P1MB4PB50 used for?
The Lovato P1MB4PB50 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 P1MB4PB50?
This miniature circuit breaker has a rated operational current of 50 A.
What does the Type B tripping characteristic mean?
A Type B circuit breaker is designed for circuits with relatively low inrush currents, including resistive loads, heating circuits, lighting and general electrical distribution equipment.
What is the short-circuit capacity of this circuit breaker?
The Lovato P1MB4PB50 has a rated short-circuit breaking capacity of 10 kA.
How many poles and DIN modules does the P1MB4PB50 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.
