Lovato P5ME3PS0400 is a 3-pole 400 A IEC moulded case circuit breaker with adjustable electronic overload and short-circuit protection and 65 kA Icu/Ics breaking capacity at 380–415 V AC.
£886.44
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.
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.
| Manufacturer | Lovato Electric |
|---|---|
| Series | P5ME |
| Model | P5ME3PS0400 |
| Product type | Moulded case circuit breaker (MCCB) |
| Compliance | IEC |
| Number of poles | 3 |
| Rated current at ≤40 °C | 400 A |
| Electronic overload trip adjustment | 160–400 A |
| Electronic short-circuit trip adjustment | 240–4000 A |
| Rated operational voltage Ue | 690 V AC |
| Rated insulation voltage Ui | 1000 V |
| Rated impulse withstand voltage Uimp | 8 kV |
| Icu at 220–240 V AC | 100 kA |
| Icu at 380–415 V AC | 65 kA |
| Icu at 440–460 V AC | 65 kA |
| Icu at 480–500 V AC | 42 kA |
| Icu at 525 V AC | 22 kA |
| Icu at 660–690 V AC | 10 kA |
| Ics at 220–240 V AC | 100 kA |
| Ics at 380–415 V AC | 65 kA |
| Ics at 440–460 V AC | 65 kA |
| Ics at 480–500 V AC | 42 kA |
| Ics at 525 V AC | 22 kA |
| Ics at 660–690 V AC | 10 kA |
| Maximum heat dissipation per pole | 48 W |
| Terminal type | M10 × 30 screw terminals |
| Terminal tool | 8 mm metric Allen key |
| Maximum terminal tightening torque | 48 Nm |
| Normal mounting position | Vertical plane |
| Permitted mounting position | Any |
| Fixing | Screw |
| Mechanical endurance | 20,000 cycles |
| Electrical endurance | 10,000 cycles |
| Dimensions (W × H × D) | 140 × 260 × 110 mm |
| Weight | 5.4 kg |
| Operating temperature | -20 to +70 °C |
| Storage temperature | -40 to +80 °C |
| Frontal protection rating | IP20 |
| EAN | 8013975325032 |
| HS code | 85362090 |
The P5ME3PS0400 has a rated current of 400 A at ambient temperatures up to 40 °C.
At 380–415 V AC, the P5ME3PS0400 has both an ultimate short-circuit breaking capacity Icu of 65 kA and a service short-circuit breaking capacity Ics of 65 kA.
Yes. Its electronic overload trip can be adjusted from 160 to 400 A, while its electronic short-circuit trip can be adjusted from 240 to 4000 A.
The P5ME3PS0400 is a 3-pole MCCB designed for use in compatible three-phase electrical distribution systems.
The circuit breaker has a rated operational voltage of up to 690 V AC, with a rated insulation voltage of 1000 V.
The breaker measures 140 × 260 × 110 mm (width × height × depth) and weighs approximately 5.4 kg.
The P5ME3PS0400 uses M10 × 30 screw terminals, with a specified maximum tightening torque of 48 Nm.
Lovato P5 moulded case circuit breakers provide panel builders, electrical engineers, machine builders and industrial automation professionals with adjustable electronic protection and high short-circuit breaking performance for demanding low-voltage power distribution systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...