Lovato PMV80NA600 multifunction three-phase voltage monitoring relay for 480 to 600 V AC systems with voltage, frequency, phase loss, neutral loss and phase sequence monitoring.
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Why Choose the Lovato PMV80NA600 Voltage Monitoring Relay?
The Lovato PMV80NA600 is a multifunction three-phase voltage monitoring relay designed to protect electrical installations against abnormal supply conditions. Suitable for 480 to 600 V AC 50/60 Hz systems with or without neutral, it continuously monitors voltage, frequency and phase conditions to help prevent costly equipment damage and unexpected downtime.
As part of the trusted Lovato PMV80N series, this relay combines under and overvoltage protection, under and overfrequency monitoring, phase loss detection, neutral loss detection and incorrect phase sequence monitoring within a compact DIN rail mounted unit. Adjustable settings allow engineers to tailor protection levels for demanding industrial environments.
With dual SPDT relay outputs, automatic reset functionality and user-friendly potentiometer adjustment, the PMV80NA600 offers dependable protection for motors, pumps, compressors, switchboards, generators and industrial power distribution systems where reliable three-phase monitoring is essential.
Key Advantages
Designed for 480 to 600 V AC three-phase systems.
Monitors minimum and maximum voltage.
Detects minimum and maximum frequency.
Protects against phase loss, neutral loss and incorrect phase sequence.
Dual SPDT relay outputs for flexible control integration.
Compact 35 mm DIN rail mounting for industrial control panels.
Key Features
Lovato PMV80N series voltage monitoring relay.
Suitable for three-phase systems with or without neutral.
480 to 600 V AC operating voltage.
Rated frequency 50/60 Hz.
Adjustable voltage thresholds from 80 to 115% of nominal voltage.
Adjustable frequency thresholds from 1 to 10%.
Adjustable trip delay from 0.1 to 20 seconds.
2 changeover (SPDT) relay outputs.
Automatic reset operation.
LED indication for power and fault status.
Comprehensive Three-Phase Power Protection
The PMV80NA600 continuously analyses the incoming supply to identify abnormal operating conditions before they can affect connected equipment. Voltage fluctuations, incorrect phase rotation, missing phases or unstable frequency can all cause premature failure of motors, drives and industrial machinery. This relay provides reliable protection by disconnecting equipment whenever configured limits are exceeded.
Its compact modular design makes installation straightforward in new control panels or retrofit projects, while adjustable settings provide flexibility across a wide range of industrial applications.
Typical Applications
Motor control centres.
Industrial control panels.
Pump and fan protection.
Compressors.
Generator monitoring.
Production machinery.
HVAC systems.
Power distribution equipment.
Technical Specifications
Voltage
600 V
Phase
Three Phase
Manufacturer
Lovato Electric
Series
PMV80N
Model
PMV80NA600
Product type
Three-phase voltage monitoring relay
System type
Three-phase with or without neutral
Rated voltage
480 to 600 V AC
Operating frequency
50/60 Hz
Power supply
Self powered
Relay outputs
2 × SPDT (changeover)
Maximum switching voltage
400 V AC
Rated thermal current
8 A
Trip delay
0.1 to 20 s
Reset type
Automatic
Mounting
35 mm DIN rail
Protection rating
IP40 front, IP20 terminals
Operating temperature
-20°C to +60°C
Dimensions (H × W × D)
104.7 × 35.8 × 64.9 mm
Weight
Approximately 200 g
HS Code
85364900
Frequently Asked Questions
What does the Lovato PMV80NA600 monitor?
It monitors three-phase voltage, frequency, phase loss, neutral loss and phase sequence to protect connected electrical equipment.
What voltage range is this relay designed for?
The PMV80NA600 is designed for 480 to 600 V AC three-phase electrical systems operating at 50/60 Hz.
Can it be used on systems without a neutral?
Yes. The relay is suitable for three-phase installations with or without a neutral conductor.
How is the relay installed?
The unit is designed for quick installation onto a standard 35 mm DIN rail inside electrical control panels.
What outputs does the relay provide?
The PMV80NA600 features two SPDT changeover relay outputs for signalling or control applications.
Trusted for Industrial Power Monitoring
Lovato PMV series monitoring relays are widely used by panel builders, OEMs and industrial engineers to protect electrical systems from damaging voltage and phase supply faults while improving equipment reliability.
Voltage
600 V
Phase
Three Phase
Manufacturer
Lovato Electric
Series
PMV80N
Model
PMV80NA600
Product type
Three-phase voltage monitoring relay
System type
Three-phase with or without neutral
Rated voltage
480 to 600 V AC
Operating frequency
50/60 Hz
Power supply
Self powered
Relay outputs
2 × SPDT (changeover)
Maximum switching voltage
400 V AC
Rated thermal current
8 A
Trip delay
0.1 to 20 s
Reset type
Automatic
Mounting
35 mm DIN rail
Protection rating
IP40 front, IP20 terminals
Operating temperature
-20°C to +60°C
Dimensions (H × W × D)
104.7 × 35.8 × 64.9 mm
Weight
Approximately 200 g
HS Code
85364900
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Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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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...