P1MB4PB63 - MINIATURE CIRCUIT BREAKER 4P CURVE B 63A

P1MB4PB63 – MINIATURE CIRCUIT BREAKER 4P CURVE B 63A

Lovato P1MB4PB63 four-pole miniature circuit breaker with a 63 A rating, Type B tripping characteristic and 10 kA short-circuit breaking capacity for commercial and industrial electrical protection.

SKU: P1MB4PB63MPN: P1MB4PB63
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List Price £154.95 ex VAT
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Why Choose the Lovato P1MB4PB63 Miniature Circuit Breaker?

The Lovato P1MB4PB63 is a robust 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 Lovato Electric P1MB modular protection range, it combines reliable thermal-magnetic protection with a compact DIN rail mounted design for modern switchboards and control panels.

Featuring a 63 A rated current, a Type B tripping characteristic and a 10 kA short-circuit breaking capacity, the P1MB4PB63 is ideal for protecting power distribution circuits, switchboards, machinery and electrical installations where low inrush currents are expected. It complies with IEC and UL standards, making it suitable for a wide range of industrial and commercial applications.

Its four mechanically linked poles provide simultaneous disconnection of all conductors during overload or fault conditions, improving installation safety while protecting connected equipment. The compact four-module design enables efficient use of panel space without compromising performance.

Key Advantages

  • Reliable overload and short-circuit protection.
  • Four-pole configuration for complete circuit isolation.
  • 63 A rated current for higher-current electrical applications.
  • Type B tripping characteristic for circuits with low inrush currents.
  • 10 kA breaking capacity for dependable fault protection.
  • Compact four-module DIN rail design for efficient panel layouts.

Key Features

  • Lovato Electric P1MB miniature circuit breaker series.
  • Four-pole thermal-magnetic protection.
  • 63 A rated operational current.
  • Type B tripping characteristic.
  • 10 kA short-circuit breaking capacity.
  • Current-limiting class 3 performance.
  • Positive contact status indication.
  • 35 mm DIN rail mounting.

Reliable Protection for High-Current Circuits

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

The Lovato P1MB4PB63 is designed for dependable operation in demanding electrical environments where safe isolation, reliable fault protection and long service life are essential. Its four-pole design makes it suitable for protecting three-phase systems with a neutral conductor.

Typical Applications

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

Technical Specifications

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Current 63 A
Phase Three Phase
Poles 4-pole
Device Type MCB
Trip Curve B curve
Breaking Capacity 10 kA
Manufacturer Lovato Electric
Series P1MB
Model P1MB4PB63
Product type Miniature circuit breaker
Number of poles 4
Number of DIN modules 4
Rated current 63 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
Current-limiting class 3
Electrical life 10,000 operations
Mechanical life 20,000 operations
Mounting type 35 mm DIN rail
Protection rating IP20
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 P1MB4PB63 used for?

The P1MB4PB63 protects electrical circuits against overloads and short circuits in commercial, industrial and OEM electrical installations.

What is the rated current?

This miniature circuit breaker has a rated operational current of 63 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, resistive loads and general electrical distribution applications.

What is the breaking capacity of the P1MB4PB63?

The breaker provides a 10 kA short-circuit breaking capacity in accordance with IEC standards.

How is the Lovato P1MB4PB63 installed?

The breaker occupies four DIN modules and mounts directly onto a standard 35 mm DIN rail within electrical 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, excellent build quality and long-term reliability.