Lovato P2MB3PC125 three-pole miniature circuit breaker with 125 A rated current, C tripping curve, 10 kA short-circuit breaking capacity and 230/400 V AC operational voltage.
£263.86
The Lovato P2MB3PC125 is a high-capacity three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in commercial and industrial electrical installations. As part of the Lovato P2 MB modular protection range, it delivers dependable thermal-magnetic protection for three-phase distribution boards, machinery and control panels.
Featuring a 125 A rated current, C tripping characteristic and 10 kA short-circuit breaking capacity, the P2MB3PC125 is ideally suited to circuits supplying equipment with moderate inrush currents, including motors, transformers and industrial machinery. The mechanically linked three-pole mechanism disconnects all phases simultaneously, ensuring safe and dependable circuit isolation.
The breaker occupies 4.5 DIN modules, operates on 230/400 V AC systems and mounts directly onto a standard 35 mm DIN rail. Designed in accordance with IEC/EN 60947-2 and UL 1077, it is suitable for demanding industrial environments.
The Lovato P2MB3PC125 continuously monitors current flowing through all three protected phases and disconnects the supply whenever overload or short-circuit conditions occur. Its thermal release responds to sustained overloads while the magnetic release provides rapid interruption during severe fault conditions.
Its C curve characteristic makes the breaker suitable for motors, transformers, HVAC equipment, industrial machinery and commercial distribution systems where moderate starting currents are expected. The linked three-pole mechanism ensures dependable isolation of all phases during maintenance or fault conditions.
| Current | 125 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | Lovato Electric |
| Series | P2 MB |
| Model | P2MB3PC125 |
| Product type | Miniature circuit breaker |
| Tripping mechanism | Thermal magnetic |
| Number of poles | 3P |
| Number of protected poles | 3 |
| Number of DIN modules | 4.5 |
| Rated current | 125 A |
| Tripping curve | C |
| Short-circuit breaking capacity | 10 kA |
| Rated operational voltage | 230/400 V AC |
| Rated DC voltage | 60 V DC |
| Rated insulation voltage | 400 V |
| Rated impulse withstand voltage | 6 kV |
| Rated frequency | 50 / 60 Hz |
| Electrical life | 10,000 cycles |
| Mechanical life | 10,000 cycles |
| Maximum power dissipation per pole | 14.06 W |
| Operating temperature | -40 to +70 °C |
| Storage temperature | -40 to +80 °C |
| Maximum operating altitude | 2000 m |
| Mounting type | 35 mm DIN rail |
| Terminal tightening torque | 3.2 to 3.5 Nm |
| Conductor capacity | 2.5 to 50 mm² |
| Built-in depth | 67 mm |
| Dimensions (H × W × D) | 85 × 81 × 80 mm |
| Protection rating | IP20 |
| Pollution degree | 3 |
| Weight | approximately 510 g |
| EAN | 8013975204344 |
| Compliance | IEC/EN 60947-2, UL 1077 and CSA C22.2 No. 235 |
| Certifications | TÜV Rheinland, cURus and EAC |
| HS Code | 85362090 |
The P2MB3PC125 protects three-phase electrical circuits against overloads and short circuits in commercial and industrial installations.
This miniature circuit breaker has a rated current of 125 A.
The C tripping characteristic allows moderate temporary inrush currents while providing dependable overload and short-circuit protection.
The Lovato P2MB3PC125 has a rated short-circuit breaking capacity of 10 kA.
Yes. The breaker is specifically designed for three-phase AC systems and disconnects all three poles simultaneously.
The breaker clips directly onto a standard 35 mm DIN rail and occupies 4.5 DIN modules inside a suitable electrical enclosure.
Lovato Electric miniature circuit breakers are trusted by electrical contractors, panel builders and industrial engineers worldwide to deliver reliable protection for machinery, switchboards and power-distribution systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...