Why Choose the Lovato P2MB4PD125 Miniature Circuit Breaker?
The Lovato P2MB4PD125 is a heavy-duty four-pole miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in demanding industrial and commercial electrical installations. As part of the established Lovato P2MB series, it combines high-current protection, robust construction and straightforward DIN rail installation for modern power distribution systems.
Featuring a D characteristic tripping curve, the P2MB4PD125 is particularly suited to equipment that produces high starting or inrush currents. This makes it an effective protective solution for transformers, motors, solenoids, power supplies and other inductive loads where a more sensitive circuit breaker could trip during normal start-up.
With a rated current of 125 A, a 230/400 V AC operational voltage and a 10 kA short-circuit breaking capacity, the P2MB4PD125 delivers reliable protection for high-current electrical circuits. Its four-pole configuration enables simultaneous switching of three phase conductors and the neutral conductor.
Key Advantages
- Heavy-duty four-pole miniature circuit breaker for demanding installations.
- 125 A rated current for high-capacity electrical circuits.
- D curve tripping characteristic suitable for high inrush currents.
- 10 kA short-circuit breaking capacity for dependable fault protection.
- Simultaneous switching of three phases and neutral.
- Suitable for industrial motors, transformers and inductive equipment.
- Simple installation on a standard 35 mm DIN rail.
Key Features
- Lovato P2MB miniature circuit breaker series.
- 125 A rated current.
- Four-pole configuration (4P).
- D characteristic tripping curve.
- 230/400 V AC rated operational voltage.
- Suitable for operation up to 60 V DC.
- 10 kA short-circuit breaking capacity.
- Screw terminals for secure conductor connections.
- Modular construction for electrical distribution panels.
- Compliance with IEC, UL and CSA supplementary protection standards.
Reliable Protection for High-Inrush Electrical Loads
Miniature circuit breakers automatically disconnect an electrical circuit when an overload or short circuit occurs. This helps protect conductors, connected equipment and electrical installations from damage while supporting safer and more dependable system operation.
The D curve response of the Lovato P2MB4PD125 allows it to tolerate the momentary current peaks generated when motors, transformers and other inductive devices are energised. This helps prevent unnecessary tripping while maintaining effective protection against sustained overloads and electrical faults.
Typical Applications
- Industrial power distribution boards.
- Motor and transformer supply circuits.
- Machinery with high starting currents.
- Industrial control panels and switchboards.
- Commercial three-phase electrical systems.
- OEM automation and production equipment.
