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P1MB2PB40 – MINIATURE CIRCUIT BREAKER 2P CURVE B 40A
Lovato P1MB2PB40 two-pole miniature circuit breaker with a 40A rated current, B tripping characteristic and 10kA short-circuit breaking capacity.
£31.78
Why Choose the Lovato P1MB2PB40 Miniature Circuit Breaker?
The Lovato P1MB2PB40 is a dependable 2-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. Part of the professional Lovato P1MB range, it is suitable for commercial distribution systems, industrial control panels, machinery and OEM electrical equipment.
This circuit breaker combines a 40A rated current, B tripping characteristic and 10kA short-circuit breaking capacity. Its B curve response is particularly suitable for resistive and lightly inductive loads with relatively low inrush currents, including heating, lighting and general electrical distribution circuits.
The P1MB2PB40 occupies two DIN modules and is designed for straightforward installation onto a standard 35mm DIN rail. Its compact construction, positive switching indication and compliance with recognised IEC, EN, UL and CSA standards make it a reliable choice for professional circuit protection applications.
Key Advantages
- Reliable overload and short-circuit protection.
- 40A rated current for higher-capacity branch circuits.
- B tripping curve for resistive and lightly inductive loads.
- 10kA short-circuit breaking capacity.
- Compact 2-pole, two-module format.
- Quick installation onto a standard 35mm DIN rail.
Key Features
- Lovato P1MB miniature circuit breaker series.
- 40A rated current.
- 2-pole configuration.
- B tripping characteristic.
- 10kA short-circuit rating.
- 230/400V AC rated operational voltage.
- 440V rated insulation voltage.
- 4kV rated impulse withstand voltage.
- Positive contact position indication.
- Two-module DIN rail mounted construction.
Reliable Circuit Protection for Electrical Systems
Miniature circuit breakers use thermal and magnetic trip mechanisms to disconnect a circuit when an overload or short circuit occurs. This helps prevent excessive conductor temperatures, limits equipment damage and improves the overall safety of an electrical installation.
The two-pole configuration of the Lovato P1MB2PB40 enables linked switching and protection across two conductors. Its 40A current rating and B curve characteristic make it suitable for circuits where dependable protection and a controlled response to lower starting currents are required.
Typical Applications
- Commercial electrical distribution boards.
- Industrial control panels and switchboards.
- Heating and resistive load circuits.
- Lighting and general distribution systems.
- Machine building and OEM equipment.
- Building services and electrical installations.
Technical Specifications
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| Current | 40 A | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | Lovato Electric | |
| Series | P1MB | |
| Model | P1MB2PB40 | |
| Product type | Miniature circuit breaker (MCB) | |
| Number of poles | 2P | |
| Number of DIN modules | 2 | |
| Rated current | 40A | |
| Tripping characteristic | B Curve | |
| Short-circuit breaking capacity | 10kA | |
| Rated operational voltage | 230/400V AC | |
| Rated frequency | 50/60Hz | |
| Rated insulation voltage (Ui) | 440V | |
| Rated impulse withstand voltage (Uimp) | 4kV | |
| Mounting | 35mm DIN rail | |
| Front protection rating | IP20 | |
| Weight | Approx. 230g | |
| Compliance | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 and CSA C22.2 No. 235 | |
| EAN | 8013975203279 | |
| HS Code | 85362010 |
Frequently Asked Questions
What is the Lovato P1MB2PB40 used for?
It protects electrical circuits against overloads and short circuits in commercial, industrial and OEM electrical installations.
What is the rated current of the P1MB2PB40?
The Lovato P1MB2PB40 has a rated current of 40A.
What does the B tripping curve mean?
A B curve circuit breaker is intended for circuits with relatively low inrush currents, including resistive loads, heating equipment and general lighting circuits.
What is the breaking capacity of this circuit breaker?
The P1MB2PB40 has a 10kA short-circuit breaking capacity, enabling it to interrupt substantial fault currents when correctly selected and installed.
How is the Lovato P1MB2PB40 installed?
It occupies two DIN modules and mounts onto a standard 35mm DIN rail within a suitable electrical enclosure or distribution board.
Trusted by Electrical Professionals Worldwide
Lovato P1MB miniature circuit breakers are specified by panel builders, electrical contractors and machine manufacturers for reliable protection, compact installation and consistent long-term performance.
