P5ME3PS0400 Lovato 3P MCCB 400A – ICU 50kA

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.