Why Choose the Lovato P1MB4PB04 Miniature Circuit Breaker?
The Lovato P1MB4PB04 is a compact and reliable 4-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. As part of the established Lovato P1MB modular circuit protection range, it provides coordinated switching and protection for three-phase and neutral conductors in industrial, commercial and machinery installations.
This miniature circuit breaker combines a 4 A rated current, a B tripping characteristic and a 10 kA short-circuit breaking capacity. Its B curve response is suitable for circuits with low starting currents, including resistive loads, lighting systems, control equipment and sensitive electronic devices.
The P1MB4PB04 features a 4-pole, four-module configuration for simultaneous switching and protection of four conductors. Its thermal-magnetic operating mechanism, class 3 current-limiting performance and standard DIN rail format make it a practical choice for panel builders, electrical contractors and machine manufacturers.
Key Advantages
- Dependable overload and short-circuit protection for four-pole circuits.
- 4 A rated current for control, auxiliary and sensitive equipment circuits.
- B curve tripping characteristic for loads with low starting currents.
- 10 kA short-circuit breaking capacity.
- Compact 4-pole, four-module construction.
- Conforms to recognised IEC, EN, UL and CSA standards.
Key Features
- Lovato P1MB miniature circuit breaker series.
- 4-pole configuration.
- 4 A rated current.
- B tripping characteristic.
- 10 kA IEC short-circuit rating.
- 230/400 V AC rated operational voltage.
- 50/60 Hz rated frequency.
- 440 V rated insulation voltage.
- 4 kV rated impulse withstand voltage.
- Current-limiting class 3 performance.
- Thermal-magnetic circuit protection.
- Standard DIN rail mounting.
Reliable Protection for Low-Inrush Circuits
Miniature circuit breakers automatically disconnect electrical circuits when excessive current is detected. Thermal protection responds to sustained overload conditions, while magnetic protection rapidly isolates short-circuit faults, helping safeguard cables, connected equipment and electrical assemblies.
The Lovato P1MB4PB04 uses a B curve characteristic that provides sensitive magnetic tripping for circuits without substantial starting currents. This makes it suitable for resistive loads, lighting systems, control circuits and electronic equipment where rapid fault disconnection is required.
Typical Applications
- Industrial control and automation panels.
- Low-current auxiliary circuits.
- Three-phase and neutral distribution circuits.
- Lighting and resistive load circuits.
- Electronic equipment protection.
- Machine building and OEM equipment.
