Why Choose the Lovato P1MBUH3PC20 Miniature Circuit Breaker?
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.
Key Advantages
- Reliable three-pole overload and short-circuit protection.
- 20 A rated current for three-phase electrical circuits.
- Type C tripping curve suitable for moderate inrush currents.
- High 10 kA short-circuit breaking capacity.
- Simultaneous disconnection of all three protected poles.
- Compact three-module construction conserves panel space.
- Standard DIN rail mounting simplifies installation and replacement.
- Conforms to recognised IEC and UL circuit breaker standards.
Key Features
- Lovato Electric P1MB series miniature circuit breaker.
- Three-pole configuration.
- 20 A nominal current rating.
- Type C thermal-magnetic tripping characteristic.
- 10 kA IEC short-circuit rating.
- 230/400 V AC operational voltage under IEC conditions.
- 480Y/277 V AC operational voltage under UL conditions.
- 50/60 Hz rated frequency.
- Three-DIN-module width.
- IP20 frontal protection rating.
Reliable Protection for Three-Phase Electrical Circuits
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.
Typical Applications
- Industrial electrical control panels.
- Three-phase machinery circuits.
- Motor starters and automation equipment.
- Transformers and inductive loads.
- Manufacturing and processing machinery.
- Commercial electrical distribution boards.
- OEM machine-building projects.
- Control power and auxiliary circuits.
