Why Choose the Lovato P1MB3PD40 Miniature Circuit Breaker?
The Lovato P1MB3PD40 is a robust 3-pole miniature circuit breaker (MCB) designed to protect three-phase electrical circuits against overloads and short circuits. As part of the dependable Lovato P1MB modular circuit protection range, it is suitable for industrial control panels, electrical machinery, commercial distribution systems and OEM equipment.
This miniature circuit breaker combines a 40 A rated current, a D tripping characteristic and a 10 kA short-circuit breaking capacity. Its D curve response accommodates high temporary inrush currents, making the P1MB3PD40 particularly suitable for transformers, motors, industrial power supplies and other inductive loads.
The P1MB3PD40 features a compact 3-pole, three-module configuration and installs on a standard DIN rail. Its thermal-magnetic operation, class 3 current-limiting performance and compliance with recognised international standards make it a reliable choice for panel builders, electrical engineers and machine manufacturers.
Key Advantages
- Dependable overload and short-circuit protection for three-phase circuits.
- 40 A rated current for industrial machinery and distribution applications.
- D curve tripping characteristic suitable for high inrush currents.
- 10 kA short-circuit breaking capacity.
- Compact 3-pole, three-module construction.
- Conforms to recognised IEC, EN, UL and CSA standards.
Key Features
- Lovato P1MB miniature circuit breaker series.
- 3-pole configuration.
- 40 A rated current.
- D tripping characteristic.
- 10 kA IEC short-circuit rating.
- 230/400 V AC rated operational voltage.
- 50/60 Hz rated frequency.
- 440 V rated insulation voltage.
- 4 kV rated impulse withstand voltage.
- Current-limiting class 3 performance.
- Thermal-magnetic circuit protection.
- Standard DIN rail mounting.
Reliable Protection for High-Inrush Circuits
Miniature circuit breakers automatically disconnect electrical circuits when excessive current is detected. Thermal protection responds to sustained overload conditions, while magnetic protection provides rapid isolation during short circuits, helping protect cables, connected equipment and electrical assemblies.
The Lovato P1MB3PD40 uses a D curve characteristic that permits higher temporary starting currents than B or C curve breakers. This helps reduce nuisance tripping when energising transformers, motors, power supplies and other equipment with substantial inrush current.
Typical Applications
- Industrial control and automation panels.
- Transformer protection circuits.
- Motor and inductive load circuits.
- Industrial power supplies.
- Three-phase electrical distribution systems.
- Machine building and OEM equipment.
