Why Choose the Lovato P1MBUH3PD05 Miniature Circuit Breaker?
The Lovato P1MBUH3PD05 is a compact and dependable three-pole miniature circuit breaker (MCB) designed to provide overload and short-circuit protection in industrial and commercial electrical systems. As part of the Lovato P1 MB miniature circuit breaker range, it combines a 5 A rated current with a D tripping curve for circuits containing equipment with relatively high starting or inrush currents.
Designed for applications requiring UL 489 branch-circuit protection and compliance with IEC/EN 60947-2, the P1MBUH3PD05 provides thermal-magnetic circuit protection in a compact modular format. Its three-pole construction enables simultaneous protection of three conductors, while standard DIN rail mounting simplifies integration into control panels, machinery and electrical distribution assemblies.
With a 5 A rated current, three-pole configuration, 480Y/277 V AC UL rated operational voltage and 10 kA short-circuit rating, the P1MBUH3PD05 provides robust protection for low-current circuits where D-curve characteristics are required.
Key Advantages
- Compact three-pole miniature circuit breaker for branch-circuit protection.
- 5 A rated current for low-current industrial and commercial circuits.
- D tripping curve suitable for loads with relatively high starting or inrush currents.
- 480Y/277 V AC UL operational voltage rating.
- 10 kA short-circuit rating under UL and IEC specifications.
- Compliant with UL 489 and IEC/EN 60947-2.
- Compact three-module construction for efficient control-panel installation.
Key Features
- Lovato P1 MB miniature circuit breaker series.
- Three-pole (3P) configuration.
- 5 A rated current.
- D tripping characteristic.
- 480Y/277 V AC rated operational voltage under UL.
- 230/400 V AC rated operational voltage under IEC.
- 10 kA short-circuit rating.
- 50/60 Hz rated frequency.
- 4 kV rated impulse withstand voltage.
- 35 mm DIN rail mounting.
- IP20 frontal protection rating.
- Three DIN modules wide for compact installation.
Reliable Protection for High-Inrush Circuits
Miniature circuit breakers such as the Lovato P1MBUH3PD05 automatically interrupt electrical circuits when overload or short-circuit conditions occur. The thermal-magnetic operating principle provides protection against sustained overcurrents while enabling rapid interruption when severe fault currents are detected.
The D-curve characteristic makes the P1MBUH3PD05 particularly useful for selected circuits where connected equipment can draw substantial temporary inrush current during energisation. Its three-pole construction, 10 kA short-circuit rating and compact DIN rail format make it a practical protection device for machinery, automation and electrical distribution applications.
Typical Applications
- Low-current three-phase industrial circuits.
- Electrical control panels and distribution assemblies.
- Industrial machinery and automation equipment.
- Circuits supplying equipment with high starting or inrush currents.
- Commercial and industrial electrical systems.
- OEM machinery requiring UL 489 branch-circuit protection.
