Lovato PMVF20D048 interface protection unit for three-phase 230 V and 400 V AC systems with or without neutral, featuring dual-threshold voltage and frequency protection and a 12 to 48 V DC auxiliary supply.
£3,041.65
The Lovato PMVF20D048 is a dedicated interface protection system unit designed to monitor the connection between a local electricity generation installation and the public low-voltage distribution network. It is suitable for photovoltaic systems, cogeneration equipment and other distributed generation applications operating in parallel with the mains supply.
Designed for three-phase systems with or without neutral, the PMVF20D048 continuously monitors minimum and maximum voltage together with minimum and maximum frequency. Dual protection thresholds allow the unit to detect abnormal grid conditions and operate the interface disconnection device when monitored values move outside permitted limits.
The PMVF20D048 is intended for 230 V and 400 V AC networks and features a 12–48 V DC auxiliary supply. It is compliant with the Italian CEI 0-21 standard for low-voltage interface protection. This model is listed by Lovato Electric as out of catalogue, so customers should contact LED Controls to confirm availability or identify a suitable replacement.
Distributed electricity generation systems must be disconnected from the public network whenever voltage or frequency conditions move outside permitted operating limits. The Lovato PMVF20D048 continuously monitors the mains connection and controls an external interface device when an unacceptable grid condition is detected.
Its dual voltage and frequency thresholds allow the protection response to be coordinated with the requirements of the generation system and local distribution network. The low-voltage DC auxiliary supply makes the unit suitable for control panels equipped with battery-backed or dedicated DC power supplies.
| Manufacturer | Lovato Electric |
|---|---|
| Series | PMVF |
| Model | PMVF20D048 |
| Product type | Interface protection system unit |
| System type | Three-phase with or without neutral |
| Network voltage | 230 / 400 V AC |
| Rated auxiliary supply | 12–48 V DC |
| Maximum auxiliary operating voltage | 70 V DC |
| Rated frequency | 50 / 60 Hz |
| Current transformer input | 1 A or 5 A secondary |
| Voltage protection | Dual-threshold minimum and maximum voltage |
| Frequency protection | Dual-threshold minimum and maximum frequency |
| Permitted energisation delay | Up to 60 s |
| Applicable standard | CEI 0-21 |
| Mounting type | Panel mounting |
| Dimensions (H × W × D) | Approximately 96 × 96 × 80 mm |
| Product status | Out of catalogue |
| HS Code | 85364900 |
The PMVF20D048 monitors voltage and frequency at the connection between a local electricity generation system and the public low-voltage mains network.
The unit operates from a rated 12–48 V DC auxiliary supply, with a maximum auxiliary operating voltage of approximately 70 V DC.
It is designed for three-phase 230 V or 400 V AC systems operating with or without a neutral conductor.
The PMVF20D048 provides dual-threshold minimum and maximum voltage protection together with dual-threshold minimum and maximum frequency monitoring.
Lovato Electric lists the PMVF20D048 as out of catalogue. Customers should contact LED Controls to confirm remaining availability or discuss a suitable current replacement.
Lovato PMVF interface protection units are used by renewable energy installers, electrical engineers and panel builders to provide dependable grid monitoring and disconnection control for parallel electricity generation systems.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...