Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.

Lovato PMV50NA127 multifunction protection relay for three-phase plus neutral voltage monitoring with 110/127 V AC operation and electrical fault protection functions.
£313.91
The Lovato PMV50NA127 is a multifunction three-phase and neutral voltage protection relay designed to monitor electrical network conditions and protect sensitive equipment against voltage-related faults. As part of the reliable Lovato PMV50 protection relay series, it provides comprehensive monitoring functions for industrial electrical installations, control panels and power distribution systems.
This protection relay continuously supervises supply voltage parameters including phase sequence, phase failure, overvoltage and undervoltage conditions. Its multifunction design allows engineers to improve system reliability by identifying abnormal network conditions before they cause equipment damage or operational interruptions.
With a 110/127 V AC three-phase plus neutral supply system and a compact monitoring design, the PMV50NA127 is suitable for electrical protection applications requiring dependable voltage supervision and fault indication.
Protection relays help maintain the reliability of electrical systems by continuously monitoring supply conditions and detecting abnormal operating states. Early identification of voltage faults helps prevent damage to motors, automation equipment and other connected loads.
The Lovato PMV50 series provides flexible protection solutions for industrial applications, combining accurate voltage supervision with dependable relay-based fault signalling and control.
Tick the specs you need, then view products that match.
| Monitored Supply | Three-phase + N | |
|---|---|---|
| HS Code | 85364900 | |
| Manufacturer | Lovato | |
| Series | PMV50 Protection Relays | |
| Model | PMV50NA127 | |
| Product type | Multifunction protection relay | |
| Network monitoring | Three-phase + neutral | |
| Supply voltage | 110/127 V AC | |
| Monitoring type | Voltage protection and phase monitoring | |
| Functions | Overvoltage, undervoltage, phase failure and phase sequence monitoring | |
| Output type | Relay output | |
| Mounting type | Panel mounting | |
| Coil / Supply Voltage | 110 V AC, 127 V AC |
The PMV50NA127 is a multifunction protection relay used to monitor three-phase electrical supplies and protect equipment against voltage faults.
The relay is designed for 110/127 V AC three-phase plus neutral electrical systems.
The relay provides voltage monitoring functions including overvoltage, undervoltage, phase failure and phase sequence protection.
The relay is typically installed inside electrical control panels and distribution systems for industrial protection applications.
The relay provides a switching output for alarm indication or control of protective circuits.
Lovato PMV50 protection relays provide dependable monitoring and fault detection for industrial electrical systems, helping improve equipment safety and operational reliability.
● 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...