P1MB4PB25 - MINIATURE CIRCUIT BREAKER 4P CURVE B 25A

P1MB4PB25 – MINIATURE CIRCUIT BREAKER 4P CURVE B 25A

Lovato P1MB4PB25 four-pole miniature circuit breaker with a 25 A current rating, Type B tripping characteristic and 10 kA breaking capacity for commercial and industrial electrical protection.

SKU: P1MB4PB25MPN: P1MB4PB25
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List Price £135.66 ex VAT
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Why Choose the Lovato P1MB4PB25 Miniature Circuit Breaker?

The Lovato P1MB4PB25 is a high-performance four-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in commercial, industrial and OEM electrical installations. As part of the trusted Lovato Electric P1MB modular protection range, it combines reliable thermal-magnetic protection with a compact DIN rail mounting format for straightforward installation.

Featuring a 25 A rated current, a Type B tripping characteristic and a 10 kA short-circuit breaking capacity, the P1MB4PB25 is ideal for protecting lighting circuits, electrical distribution systems, control panels and resistive loads where low inrush currents are expected.

Its four mechanically linked poles ensure simultaneous disconnection of all conductors, helping improve safety during fault conditions and maintenance. Manufactured to recognised international standards, this miniature circuit breaker offers long-term reliability in demanding electrical environments.

Key Advantages

  • Reliable overload and short-circuit protection for electrical installations.
  • Four-pole configuration for complete circuit isolation.
  • 25 A rated current for commercial and industrial applications.
  • Type B tripping characteristic for circuits with low inrush currents.
  • 10 kA breaking capacity for enhanced fault protection.
  • Compact modular DIN rail design simplifies installation.

Key Features

  • Lovato Electric P1MB miniature circuit breaker series.
  • Four-pole thermal-magnetic protection.
  • 25 A rated operational current.
  • Type B instantaneous tripping curve.
  • 10 kA rated short-circuit capacity.
  • Four DIN modules wide.
  • Positive contact status indication.
  • 35 mm DIN rail mounting.

Reliable Protection for Electrical Systems

Miniature circuit breakers automatically disconnect electrical supplies whenever overload or short-circuit conditions occur, protecting electrical wiring, connected equipment and personnel. Thermal protection responds to sustained overloads, while magnetic protection rapidly interrupts high fault currents.

The Lovato P1MB4PB25 combines dependable protection, compact dimensions and recognised international approvals, making it suitable for modern switchboards, industrial machinery and commercial electrical distribution systems.

Typical Applications

  • Three-phase distribution boards.
  • Industrial control panels.
  • Commercial electrical installations.
  • Machine building and OEM equipment.
  • Building services systems.
  • Lighting and power distribution circuits.

Technical Specifications

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Current 25 A
Phase Three Phase
Poles 4-pole
Device Type MCB
Trip Curve B curve
Breaking Capacity 10 kA
Manufacturer Lovato Electric
Series P1MB
Model P1MB4PB25
Product type Miniature circuit breaker
Number of poles 4
Number of DIN modules 4
Rated current 25 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
Frequency 50 / 60 Hz
Mounting type 35 mm DIN rail
Protection rating IP20
Electrical life 10,000 operations
Mechanical life 20,000 operations
Operating temperature -40°C to +70°C
Weight Approx. 460 g
Standards IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA C22.2 No. 235
HS Code 85362010

Frequently Asked Questions

What is the Lovato P1MB4PB25 used for?

The P1MB4PB25 protects electrical circuits against overloads and short circuits in commercial, industrial and automation installations.

What is the rated current?

This miniature circuit breaker has a rated operational current of 25 A.

What does the Type B tripping characteristic mean?

Type B circuit breakers are designed for circuits with relatively low inrush currents, making them suitable for lighting, heating and general electrical distribution.

What is the breaking capacity of the P1MB4PB25?

The breaker provides a 10 kA short-circuit breaking capacity for reliable protection against fault currents.

How is the Lovato P1MB4PB25 installed?

The breaker occupies four DIN modules and mounts directly onto a standard 35 mm DIN rail within distribution boards and control panels.

Trusted Electrical Protection from Lovato Electric

Lovato Electric miniature circuit breakers are trusted worldwide by electrical contractors, panel builders and automation engineers for dependable circuit protection, high manufacturing quality and reliable long-term performance.