Lovato PMVF20 interface protection unit for three-phase 230 V and 400 V AC systems with or without neutral, providing dual-threshold minimum and maximum voltage and frequency protection.
£3,041.65
The Lovato PMVF20 is a specialised interface protection system unit designed to monitor the connection between a local electricity generation system and the public low-voltage distribution network. It is suitable for applications such as photovoltaic installations, cogeneration systems and other distributed energy systems operating in parallel with the mains supply.
Designed for three-phase systems with or without neutral, the PMVF20 provides dual-threshold minimum and maximum voltage protection together with dual-threshold minimum and maximum frequency monitoring. If the monitored electrical parameters move outside the configured limits, the unit operates its relay outputs to initiate disconnection from the mains network.
The PMVF20 supports 230 V and 400 V AC systems and is compliant with the Italian CEI 0-21 interface protection requirements. This model is now listed by Lovato Electric as out of catalogue, so customers should contact LED Controls to confirm availability or discuss an appropriate replacement.
Electricity generation systems connected in parallel with the mains must be disconnected when network voltage or frequency moves outside permitted operating limits. The Lovato PMVF20 continuously supervises these parameters and controls an external interface device when an unacceptable condition is detected.
Its multiple voltage and frequency thresholds allow the protection response to be coordinated with the requirements of the connected generation system and distribution network. The unit is particularly suited to low-voltage renewable energy and cogeneration installations that require dedicated interface protection.
| Manufacturer | Lovato Electric |
|---|---|
| Series | PMVF |
| Model | PMVF20 |
| Product type | Interface protection system unit |
| System type | Three-phase with or without neutral |
| Network voltage | 230 / 400 V AC |
| Rated AC supply voltage | 100–400 V AC |
| Rated DC supply voltage | 110–250 V DC |
| Rated frequency | 50 / 60 Hz |
| Current transformer input | 1 A or 5 A secondary |
| Relay outputs | 2 |
| Voltage protection | Dual-threshold minimum and maximum voltage |
| Frequency protection | Dual-threshold minimum and maximum frequency |
| Applicable standard | CEI 0-21 |
| Product status | Out of catalogue |
| Compliance | IEC/EN 60255-5 |
| Safety standard | IEC/EN 61010-1 |
| EMC immunity | IEC/EN 61000-6-2 |
| EMC emissions | IEC/EN 61000-6-3 |
| HS Code | 85364900 |
The PMVF20 is used to monitor voltage and frequency at the connection point between a local electricity generation system and the public low-voltage mains network.
It is designed for three-phase 230 V or 400 V AC systems operating with or without a neutral conductor.
The unit provides dual-threshold minimum and maximum voltage protection together with dual-threshold minimum and maximum frequency monitoring.
Yes. It is designed for interface protection in photovoltaic, cogeneration and other distributed energy systems connected in parallel with the mains supply.
Lovato Electric lists the PMVF20 as out of catalogue. Customers should contact LED Controls to confirm remaining availability or identify a suitable current replacement.
Lovato PMVF interface protection systems are used by electrical engineers, renewable energy installers and panel builders to monitor grid conditions and provide reliable disconnection control for parallel electricity generation 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...