The Best Voltage Monitoring Relays

Looking for the best Voltage Monitoring Relays?

Discover now our comparison of the best Voltage Monitoring Relays. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Voltage Monitoring Relays are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Voltage Monitoring Relays in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1

NOYITO Voltage Relay Module Upper Lower Limit Detection Control Switch Off ON Over Voltage Protection Battery Charge Discharge Timing (12V)

NOYITO Voltage Relay Module . Voltage detection display range: 0 - 99.9V; Voltage detection error: ±0.1V;
Module working voltage:: DC 10-16V (12V version) DC18-28V (DC24V version) ("Note: The 24V pulse charger may have more than 30V pulse voltage and cannot be used as the power supply for this relay board.").
Module working current: standby average 16mA/12V, relay pull-in 45mA/12V, digital tube off standby current 6mA/12V;
Relay parameters: a set of conversion (normally open normally closed point), contact load: 10A/277VAC 10A/30 DC (NOTE： the maximum DC load 30V 10A) (maximum load current is 1A at 50V DC voltage).
Relay Load: 10A / 277VAC 10A / 30 DC Max NOYITO Voltage Relay Module User Manual https://1drv.ms/u/s!AlzQUCOyZQhKgU8PmkPoht52mmzC?e=Lg6z9b

No. 2

Voltage Monitor Module, DC 0-99.9V Delay Relay Controller Board for Overvoltage Undervoltage Control Voltage Detection

Digital display DC voltage detection, control the relay output.
DC 6~80V relay interface board with 2 buttons for easy operation. With clear LED display, convenient to check the value.
Adjustable Voltage Detection Range: DC 0~99.9V.
When the measured voltage is lower than the lower limit or higher than upper limit value, the relay works. Can be used for voltage detection switch, battery over/under voltage protector or discharge meter. Comes with a cover for protection.

SaleNo. 3

Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 1 CO Contacts, Delay Time, 160–690 Line Supply Voltage

Product Type:Electronic Component
Item Package Dimension:10.414 Centimeters L X 9.144 Centimeters W X 3.048 Centimeters H
Country Of Origin: United States
Item Package Weight:0.25 Pounds

No. 4

GEYA Single Phase Voltage Relay Adjustable Over or Under Voltage Protection Monitor Relay 1SPDT 10A (GRV8-01,AC/DC110V-240V)

Controls its own supply voltage(True RMS measurement)
User may select operation mode through knob
Voltage measurement accuracy<1%
Relay Status:Its working status is indicated by the LED indicator.
Product Size:Ultra-small size, only 18mm width, 35mm rail mounting.

SaleNo. 5

3 Phase Voltage Monitoring Sequence Relay JVR800-2 Voltage Relay Under Over Voltage Protector

Function: This voltage relay has overvoltage, undervoltage, phase loss, phase sequence and unbalanced three-phase voltage .
Practicality: This 3-phase voltage relay does not require an external power supply. Has practical functions: power delay, output test, etc.
The Composition of This Product: Three-phase voltage protector, chronograph and counter are integrated in one relay.
2 rest modules are optional, manual and automatic.
The LCD can display data for easy reading.

SaleNo. 6

YWBL-WH Voltage Monitoring Relay Over-Voltage and Under-Voltage Relay 35MM Rail 13-17V 10-14V(DC12V)

✈ Product Name: Voltage Monitoring Relay; function: over voltage, under voltage; Rated voltage: DC 12V/24V/36V/48V; Overvoltage regulation range: 13-17v; Undervoltage adjustment range: 10-14v; capacity: 6A 250VAC (resistivity).
✈ Main Features: The voltage monitoring relay is of 2 sets of normally open and normally closed contacts, 2 indicator lights indicate various working conditions, no additional auxiliary power supply is required.
✈ Real Time Monitoring: The voltage monitoring relay could achieve real-time monitoring of dc overvoltage and undervoltage faults, and over-voltage, under-voltage value, and action time can be adjusted.
✈ 35mm Rail: With 35mm rail and standard modular structure, the voltage monitoring relay is easy to install, easy to operate.
✈ Typical Applications: The voltage monitoring relay is typically applied in dc motor, battery, UPS power supply, dc switchgear, dc panel, industrial control system.

No. 7

Sunydog DC 6~80V Voltage Detection Charging Discharge Monitor Relay Switch Controller with Case

With clear LED display, convenient to check the value.
Digital display DC voltage detection, control the relay output.
When the measured voltage is lower than the lower limit or higher than upper limit value, the relay works.
DC 6~80V relay interface board with 2 buttons for easy operation.
Adjustable Voltage Detection : DC 0~99.9V.

No. 8

DPA51CM44 3 Phase Monitoring Relay Current Voltage Monitoring Relay Phase Sequence Protector 208-480VAC Phase Sequence Protector with Indicator for 3 Phase Motor

Small Size: This 3-Phase Monitoring Relay has a small compact size for easy and convenient use and install, and the size of the Monitoring Relay is 8.1 x 6.7 x 1.75 cm/3.1 x 2.6 x 0.6 inch, you can install it on any places around the room, saving a lot of place
Multi-functioanl: This DPA51CM44 3-Phase Monitoring Relay has a widely use on the electric filed, and it can be applied to motor , elevator, air conditioning system, power system and other industries, very helpful tool during daily life
Work Well: DPA51CM44 3-Phase Monitoring Relay features with strong anti-interference performance, so it helps maintain a constant and efficient work of the motor, it will provide an excellent performance during the working process
3-Phase Design: This Current Monitoring Relay is designed with 3-Phase Monitoring Relay to provide a correct phase sequence, without neutral, phase Loss and Incorrect phase sequence, so it can detect when all phases are present and have the correct sequence
LED Indication: This DPA51CM44 Monitoring Relay features an LED indication for easier installation and trouble shooting, which permits a maximum degree of to be achieved for machines, plants and systems, and avoid far more significant subsequent damage, very convenient and useful

No. 9

Voltage Monitoring Relay DC 12V/24V/48V Over Voltage and Under Voltage Relay 35MM Rail Voltage Protector Device(DC 24V)

2 INDICATOR LIGHT: Action time of over-voltage relay can be adjusted, 2 sets of normally open and normally closed contacts, 2 indicator lights indicate various working conditions
REAL-TIME MONITOR: The overvoltage undervoltage protector relay is convenient to use, real-time monitoring of dc overvoltage and undervoltage faults
ADJUSTABLE: The overvoltage protector is not additional auxiliary power supply is required. Both over-voltage and under-voltage value can be adjusted
RAIL MOUNT: The voltage monitoring relay made of meterial, with standard modular structure, rail type installation
APPLICATION: The motor overvoltage protector can be used for dc motor, battery, UPS power supply, dc switchgear, dc panel, industrial control system

No. 10

Over-Voltage Under-Voltage Monitoring Relay Circuit Breaker Adjustable Control Module DC 12V/24V/36V/48V(DC24V)

Voltage RegulationWhen a faulty line occurs, the voltage relay can adjust the overvoltage value and the action time, and record the fault for more flexible use.
Real-time MonitoringThe voltage relay can monitor overvoltage and undervoltage faults in real time and take protective measures in time.
LED DisplayThe voltage relay includes two sets of normally open and closed contacts, and the two indicator lights respectively indicate different working states.
Rail MountingThe voltage relay adopts a standard modular structure and is mounted on a 35mm rail without additional auxiliary power.
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Last update on 2025-07-01 / Affiliate links / Images from Amazon Product Advertising API

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