Why Choose the Lovato P5ME3PS0400 400A Moulded Case Circuit Breaker?
The Lovato P5ME3PS0400 is a high-performance 3-pole moulded case circuit breaker (MCCB) from the Lovato P5ME series, designed for protection of industrial low-voltage electrical distribution systems. Rated at 400 A, it incorporates an electronic trip unit with adjustable overload and short-circuit protection for accurate coordination with the requirements of the protected circuit.
At 380–415 V AC, the P5ME3PS0400 provides an ultimate short-circuit breaking capacity Icu of 65 kA and a service short-circuit breaking capacity Ics of 65 kA. Its electronic overload setting can be adjusted from 160–400 A, while the short-circuit trip setting covers 240–4000 A, giving designers flexibility when coordinating protection within industrial power-distribution systems.
The breaker supports an AC rated operational voltage up to 690 V, with a rated insulation voltage of 1000 V and impulse withstand voltage of 8 kV. Robust construction, a 20,000-cycle mechanical endurance and broad -20 to +70 °C operating range make the P5ME3PS0400 suitable for demanding switchboards, machinery and industrial power installations.
Key Advantages
- 400 A rated current for high-current industrial distribution circuits.
- 3-pole IEC configuration for three-phase electrical systems.
- 65 kA Icu at 380–415 V AC provides high short-circuit interruption capability.
- 65 kA Ics at 380–415 V AC for strong service breaking performance.
- Adjustable 160–400 A electronic overload protection.
- Adjustable 240–4000 A electronic short-circuit protection.
- Operational voltage up to 690 V AC for a broad range of industrial systems.
- Long 20,000-cycle mechanical endurance for dependable service.
Key Features
- Lovato P5ME series moulded case circuit breaker.
- 3 poles.
- 400 A rated current at ambient temperatures up to 40 °C.
- Electronic overload trip adjustment: 160–400 A.
- Electronic short-circuit trip adjustment: 240–4000 A.
- 65 kA Icu and Ics at 380–415 V AC.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- M10 × 30 screw terminals.
- Compact 140 × 260 × 110 mm dimensions.
- IP20 frontal protection.
Adjustable Electronic Protection for Industrial Distribution Systems
The Lovato P5ME3PS0400 combines overload and short-circuit protection within an electronic trip system. Its 160–400 A overload adjustment range allows the protection threshold to be coordinated with the load and conductor requirements, while the 240–4000 A short-circuit adjustment range provides additional flexibility when coordinating downstream and upstream protection devices.
Short-circuit performance is particularly strong on common industrial three-phase networks, with both Icu and Ics rated at 65 kA at 380–415 V AC. This makes the P5ME3PS0400 well suited to distribution boards and industrial systems where substantial prospective fault currents may be present.
Typical Applications
- Industrial low-voltage distribution boards.
- Main and sub-distribution switchboards.
- Three-phase machinery power circuits.
- Manufacturing and process automation systems.
- Industrial plant electrical distribution.
- Commercial and infrastructure power systems.
- OEM electrical panels and machinery.
- High fault-level circuits requiring adjustable electronic protection.
