Why Choose the Lovato P1MB4PD20 Miniature Circuit Breaker?
The Lovato P1MB4PD20 is a reliable 4-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in industrial, commercial and OEM installations. As part of the established Lovato P1MB modular protection range, it combines dependable thermal-magnetic protection with a compact format suitable for modern control panels and distribution boards.
Featuring a 20 A rated current, a D tripping characteristic and a 10 kA short circuit breaking capacity, the P1MB4PD20 is particularly suitable for circuits supplying equipment with high starting or inrush currents. It can be used in appropriately designed installations containing motors, transformers, solenoids and other inductive loads where a standard breaker may trip unnecessarily during start-up.
With a 4-pole configuration, 230/400 V AC rated operational voltage and compact four-module construction, the P1MB4PD20 provides simultaneous switching and protection across multiple conductors. Its DIN rail mounting enables straightforward integration into industrial machinery, automation equipment and low-voltage electrical distribution systems.
Key Advantages
- Dependable 4-pole protection against overloads and short circuits.
- 20 A rated current for industrial and commercial electrical circuits.
- D tripping characteristic suitable for loads with high inrush currents.
- 10 kA short circuit breaking capacity for reliable fault interruption.
- Compact four-module DIN rail design for efficient panel installation.
- Resettable operation helps reduce maintenance and downtime following a fault.
Key Features
- Lovato P1MB series miniature circuit breaker.
- 4 poles (4P).
- 20 A rated current.
- Type D thermal-magnetic tripping characteristic.
- 10 kA short circuit breaking capacity.
- 230/400 V AC rated operational voltage.
- 440 V rated insulation voltage.
- 4 kV rated impulse withstand voltage.
- Four DIN modules wide.
- Designed for installation on a standard 35 mm DIN rail.
Reliable Protection for High-Inrush Electrical Loads
Miniature circuit breakers automatically disconnect an electrical circuit when excessive current is detected. This helps protect cables, control equipment and connected loads from damage caused by sustained overloads or short circuit faults.
The D tripping characteristic allows the P1MB4PD20 to tolerate higher instantaneous starting currents than equivalent Type B or Type C breakers. This makes it suitable for correctly designed circuits supplying transformers, motors and industrial equipment that can draw a brief surge of current when energised.
Typical Applications
- Industrial machinery and automation panels.
- Motor circuits with high starting currents.
- Transformer primary and auxiliary circuits.
- Solenoids and other inductive electrical loads.
- Commercial electrical distribution boards.
- OEM machinery and control systems.
