Lovato P1MBUH3PC20 three-pole miniature circuit breaker with a 20 A rated current, Type C tripping characteristic and 10 kA short-circuit breaking capacity.
£190.23
The Lovato P1MBUH3PC20 is a robust three-pole miniature circuit breaker (MCB) designed to protect industrial and commercial electrical circuits against overloads and short circuits. Part of the dependable Lovato Electric P1MB series, it combines thermal and magnetic protection within a compact modular device suitable for machinery, control panels and electrical distribution equipment.
Featuring a rated current of 20 A, a Type C tripping characteristic and a short-circuit breaking capacity of 10 kA, the P1MBUH3PC20 is suitable for circuits containing equipment with moderate starting currents. It provides dependable protection for motors, transformers, contactors, power supplies and other inductive electrical loads.
The breaker has a three-pole configuration and occupies three DIN modules, allowing all three phases to be disconnected together when an electrical fault occurs. Compliance with IEC/EN 60947-2 and UL 489 supports its use in industrial installations and internationally specified machinery.
The Lovato P1MBUH3PC20 uses a thermal-magnetic operating mechanism to provide two complementary forms of electrical protection. The thermal element responds to sustained overload currents, while the magnetic element rapidly disconnects the circuit when a high short-circuit current is detected.
Its Type C response characteristic allows the circuit breaker to withstand moderate temporary inrush currents without unnecessary tripping. This makes it suitable for many industrial loads, including small motors, transformers, contactor coils, solenoids and control-system power supplies.
| Current | 20 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | Lovato Electric |
| Series | P1MB |
| Model | P1MBUH3PC20 |
| Product designation | Miniature circuit breaker |
| Number of poles | 3P |
| Number of protected poles | 3 |
| Number of DIN modules | 3 |
| Rated current | 20 A |
| Tripping characteristic | Type C |
| Tripping mechanism | Thermal-magnetic |
| Short-circuit rating | 10 kA |
| Rated operational voltage, IEC | 230/400 V AC |
| Rated operational voltage, UL | 480Y/277 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Rated frequency | 50/60 Hz |
| Mounting type | 35 mm DIN rail |
| Terminal conductor capacity | 1–35 mm² |
| Terminal tightening torque | 1.8–2 Nm |
| Mechanical life | 20,000 operations |
| Frontal protection rating | IP20 |
| Pollution degree | 2 |
| Maximum installation altitude | 2,000 m |
| Weight | Approx. 388 g |
| EAN | 8013975221136 |
| Standards | IEC/EN 60947-2, UL 489 |
| HS Code | 85362010 |
The P1MBUH3PC20 protects three-phase electrical circuits against overloads and short circuits in industrial machinery, control panels and commercial distribution systems.
The miniature circuit breaker has a rated current of 20 A.
A Type C characteristic is suitable for circuits with moderate starting currents, including motors, transformers, contactors and other inductive equipment.
The Lovato P1MBUH3PC20 provides a short-circuit breaking capacity of 10 kA.
It is rated for 230/400 V AC under IEC conditions and 480Y/277 V AC under UL conditions.
The circuit breaker mounts onto a standard 35 mm DIN rail and occupies three DIN modules inside an electrical enclosure or distribution board.
Lovato Electric P1MB miniature circuit breakers are trusted by panel builders, machinery manufacturers and electrical engineers for dependable overload and short-circuit protection in demanding industrial installations.
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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...
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...