Best Phase Monitoring Relays (April 2024) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

Siemens 3UG4633-1AL30 Monitoring Relay, Single Phase Voltage Monitoring, Scre...

9.8
CPR Score
Top 2

Siemens 3UG4631-1AW30 Monitoring Relay, Single Phase Voltage Monitoring, Scre...

9.8
CPR Score
Top 3

Power Supply Monitor Relay, 3 Phase Circuit Protection Voltage Monitoring Rel...

9.7
CPR Score
Tips


Below is a list of the top 29 best Phase Monitoring Relays. Our team has selected the top products by analyzing and evaluating 998 products of different Industrial Electrical brands, including Omron, SIEMENS, Schneider Electric, YWBL-WH, Acogedor, Oumefar, EVTSCAN, Nannday, YYQTGG, Tgoon, Yuecoom And WagNian. Hope this listing can make your shopping choice much easier.

* Cherrypicksreviews.com is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Phase Monitoring Relays Rated by CherryPicks

Market Overview
Phase Monitoring Relays Reviewed
  • Reviews Analyzed: 100 Items
  • CPR Avg. Rating: 8.5 / 10
29 Products Evaluated
  • Highest Price: $463.47
  • Lowest Price: $14.09
  • Avg. Price: $158.84
Price Disclaimer

Top 29 Phase Monitoring Relays on Amazon (Verified You can Buy)

Top 1

Siemens 3UG4633-1AL30 Monitoring Relay, Single Phase Voltage Monitoring, Screw Terminal, 1 CO Contacts, 17-275VAC/DC Measuring Range, 0.1-150V Hysteresis, 0-20s Delay Time, Self Supplied Auxiliary Voltage

SIEMENS
3UG46331AL30
0.0006 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SHOP NET -

Features

Product Type:Electronic Component
Item Package Dimension:14.986 cm L X9.652 cm W X3.302 cm H
Show More
Top 2

Siemens 3UG4631-1AW30 Monitoring Relay, Single Phase Voltage Monitoring, Screw Terminal, 1 CO Contacts, 0.1-60VAC/DC Measuring Range, 0.1-30V Hysteresis, 0-20s Delay Time, 24-240VAC/DC Auxiliary Voltage

SIEMENS
3UG46311AW30

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Top 3

Power Supply Monitor Relay, 3 Phase Circuit Protection Voltage Monitoring Relay Phase Failure Sequence Protector for Motors Pumps

Nannday
0.0 x 0.0 x 0.0 Inches

Ratings for Nannday (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Woriil -
telglass -
Zizaqin -

Features

3 INDICATORS-The protector base adopts 35mm rail type or device type, and has two screw hole structures inside, which can be directly installed separately or HT35 rail. Indicated by three indicators: normal, phase loss(voltage three-phase unbalance), reverse phase
PHASE LOSS PROTECTION-Phase loss protection means that when the protected line is in the running state or non-operating state, any phase failure occurs, and the delay is 2S
Show More
Top 4

Siemens 3UG4512-1AR20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 1 CO Contacts, Delay Time, 160-690 Line Supply Voltage

SIEMENS
3UG45121AR20
0.0006 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
DataAlchemy -
ToyzzStore -

Features

Product Type:Electronic Component
Item Package Dimension:10.414 Centimeters L X 9.144 Centimeters W X 3.048 Centimeters H
Show More
Top 5

Siemens 3UG4513-1BR20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 2 CO Contacts, Off Delay 0-20s Delay Time, 160-690 Line Supply Voltage

SIEMENS
3UG45131BR20
4.25 x 3.93 x 1.14 Inches
0.0006 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
DataAlchemy -
Data Alchemy -
AYSEGUL PINARLI -
AYDINES -

Features

Product Type:Electronic Component
Item Package Dimension:10.921 Centimeters L X 9.906 Centimeters W X 3.048 Centimeters H
Show More
Top 6

Omron K8DS-PH1 Phase Monitoring Relay

Omron
reles monitorizacion
0.315 x 0.315 x 0.2756 Inches
0.3086 Pounds

Ratings for Omron (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
DataAlchemy -
components247 -
Automation Controller -

Features

Weight: 0.67lb
Product Dimensions: 8.00 x 8.00 x 7.00 inches
Show More
Top 7

Oumefar AC 480V 3 Phase Circuit Protection Voltage Monitoring Relay 5 Indicators Heavy Duty Phase Failure Sequence Protection Relay Stable for Air Compressors

Oumefar
0.0 x 0.0 x 0.0 Inches
0.2271 Pounds

Ratings for Oumefar (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Mirandalong-US -

Features

The base of the protector adopts a rail type with two screw holes, which can be directly installed separately or mounted on the HT35 rail.
Use 5 indicators to indicate: normal, phase loss (voltage three-phase unbalance), reverse phase, overvoltage and undervoltage.
Show More
Top 8

GRV8-05 Voltage Relay,3-Phase Voltage Monitoring Relay Phase Sequence Phase Failure Protection M265

YWBL-WH
YWBL-WHo6m7t0i5sp
3.937 x 1.1811 x 2.7559 Inches

Ratings for YWBL-WH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Partgry-T -

Features

High Accuracy: The voltage relay has 8 adjustable rated voltages, and the voltage measurement accuracy is less than 1%.
LED Indicator: The working status of the voltage control relay is indicated by the LED indicator.
Show More
Top 9

YWBL-WH SVR1000 Single Phase Protection Relay Over-Voltage 50V-300V Under-Voltage 1V-90V AC/DC(AD220)

YWBL-WH
0.0 x 0.0 x 0.0 Inches

Ratings for YWBL-WH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Partgry-T -

Features

Standard modular structure, guide rail type installation.
Ac/dc voltage universal, automatic identification of ac/dc voltage, no need to switch.
Show More
Top 10

Siemens 3UG4512-1BR20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 2 CO Contacts, Delay Time, 160-690 Line Supply Voltage

SIEMENS
3UG45121BR20
0.1 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
DataAlchemy -

Features

Product Type:Electronic Component
Item Package Dimension:10.921 Centimeters L X 9.906 Centimeters W X 3.048 Centimeters H
Show More
Top 11

YWBL-WH GRV8-04 M460 Voltage Relay,3-Phase Voltage Monitoring Relay Phase Sequence Phase Failure Protection

YWBL-WH
YWBL-WHkdvof5uhng
3.937 x 1.1811 x 2.7559 Inches
0.1764 Pounds

Ratings for YWBL-WH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Partgry-T -

Features

LED Indicator: The working status of the voltage control relay is indicated by the LED indicator.
High Accuracy: The voltage relay has 8 adjustable rated voltages, and the voltage measurement accuracy is less than 1%.
Show More
Top 12

Siemens 3UG4615-1CR20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 1CO For Vmin and Vmax Contacts, 0-20s For Vmin and Vmax Delay Time, 160-690 Line Supply Voltage

SIEMENS
3UG46151CR20
0.01 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Online Components - com -
ToyzzStore -

Features

Product Type:Electronic Component
Item Package Dimension:10.921 Centimeters L X 10.16 Centimeters W X 3.048 Centimeters H
Show More
Top 13

Siemens 3UG4614-1BR20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 2 CO Contacts, Delay 0-20s On and Off Delay Time, 160-690 Line Supply Voltage

SIEMENS
3UG46141BR20
0.31 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
DataAlchemy -
Amzn Sale -
OnlineComponents Store -
Doja Online Sales -

Features

For line and single-phase voltage monitoring
Can be used on all line supplies around the world (from 160V to 690V) without an auxiliary voltage
Show More
Top 14

3 Phase Monitor Relay, Dpdt, 480Vac, 12 Pin

Schneider Electric
RM35TF30
30.7087 x 38.189 x 18.8976 Inches
0.0441 Pounds
  • Original Language: English

Ratings for Schneider Electric (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SEKEGE -
KHC Shop -
TerraTree -

Features

Price For: Each Contact Amp Rating (Resistive): 5 Input Voltage: 208 to 480VAC Power Rating: 1250 Drop-Out Range: 75% to 95% Pick Up Range: 190 to 500VAC Item: Phase Monitor Relay Base Type: DIN Rail Phase: 3 Voltage Unbalance: 2 Trip Delay: 0.10 to 10.0 (0 + 10%) sec. Pins: 12 Contact Form: DPDT Number of Contacts: 2
Country of Origin (subject to change): Indonesia
Top 15

Siemens 3UG4511-1BP20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 2 CO Contacts, Delay Time, 420-690 Line Supply Voltage

SIEMENS
3UG45111BP20
1.1811 x 3.937 x 4.3307 Inches
0.2 Pounds
  • Unknown: English

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
DataAlchemy -
Data Alchemy -

Features

Country of Origin : United States
Model Number: 3UG45111BP20
Show More
Top 16

Siemens 3UG4615-2CR20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Cage Clamp Terminal, 1CO For Vmin and Vmax Contacts, 0-20s For Vmin and Vmax Delay Time, 160-690 Line Supply Voltage

SIEMENS
3UG46152CR20
0.15 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
DataAlchemy -
Norex Supply - Save up to 70% on everything! -
VoyageSupply -

Features

Package Dimensions: 3.048 H x 10.921 L x 9.906 W (centimeters)
Package Weight: 0.15 pounds
Show More
Top 17

Siemens 3UG4622-1AW30 Monitoring Relay, Single Phase Current Monitoring, 22.5mm Width, Screw Terminal, 1 CO Contacts, 0.05A AC/DC Measuring Range, 0.01A-5A Hysteresis, 0-20 s Starting Bypass Time, 0-20 s Off Delay, 24-240VAC/DC Auxiliary Voltage

SIEMENS
3UG46221AW30
4.3 x 4.0 x 1.3 Inches
0.25 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
SIM Supply, Inc. 3,112
DataAlchemy -
VoyageSupply -

Features

22.5 mm wide
Can be digitally set and with LCD display
Show More
Top 18

Siemens 3UG4616-1CR20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 1 CO For Vmin and Vmax Contacts, 0-20s For Vmin and Vmax Delay Time, 160-690 (90-400 w.r.t. N) Line Supply Voltage

SIEMENS
3UG46161CR20
0.35 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
DataAlchemy -
Data Alchemy -
components247 -

Features

Product Type:Electronic Component
Item Package Dimension:3.048 cm L X10.921 cm W X9.906 cm H
Show More
Top 19

Siemens 3UG4511-1AP20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 1 CO Contacts, Delay Time, 420-690 Line Supply Voltage

SIEMENS
3UG45111AP20
0.25 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
AYSEGUL PINARLI -

Features

Package Dimensions: 2.794 H x 10.414 L x 8.89 W (centimeters)
Package Weight: 0.25 pounds
Show More
Top 20

Siemens 3UG4631-1AA30 Monitoring Relay, Single Phase Voltage Monitoring, Screw Terminal, 1 CO Contacts, 0.1-60VAC/DC Measuring Range, 0.1-30V Hysteresis, 0-20s Delay Time, 24VAC/DC Auxiliary Voltage

SIEMENS
3UG46311AA30
0.3 Pounds

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Top 21

Three Phase Voltage Monitoring Relay, Three Phase Voltage Small Monitoring Relay Phase Sequence Relay for Mobile Device Connection Control for Mobile Device(M460)

Tgoon

Ratings for Tgoon (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Liyust-US -

Features

This monitoring relay can monitor own working voltage.
8 kinds of rated voltages are adjustable, can apply to voltages in all regions of the world
Show More
Top 22

GRV8-03 Monitoring Relay, 176V-552V Ultrasmall Three Phase Voltage Relay Voltage Monitoring Relay Adjust for Mobile Device Connection Control(M265)

YYQTGG

Ratings for YYQTGG (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Bnjni-US -

Features

This monitoring relay can monitor own working voltage.
8 kinds of rated voltages are adjustable, can apply to voltages in all regions of the world
Show More
Top 23

Phase Monitoring Relays JVR800-2 Under Over Voltage Protector, Three-Phase Voltage Monitoring Sequence Protection Relay with

Yuecoom
3.1496 x 1.6929 x 2.126 Inches
0.2866 Pounds

Ratings for Yuecoom (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Btaribyc -
Hanleistore -

Features

Features: Undervoltage protector integrates three-phase voltage protector, chronograph and counter in one
Multifunction: The protection relay has protection functions such as overvoltage, undervoltage, phase loss, phase sequence, three-phase voltage unbalance, etc
Show More
Top 24

Siemens 3UG4632-1AW30 Monitoring Relay, Single Phase Voltage Monitoring, Screw Terminal, 1 CO Contacts, 10-600VAC/DC Measuring Range, 0.1-300V Hysteresis, 0-20s Delay Time, 24VAC/DC Auxiliary Voltage

SIEMENS
3UG46321AW30

Ratings for SIEMENS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
DataAlchemy -
VoyageSupply -
components247 -

Features

Product Type:Electronic Component
Item Package Dimension:10.668 cm L X9.906 cm W X3.048 cm H
Show More
Top 25

EVTSCAN Latest DPA51CM44 3-Phase Monitoring Relay, Current/Voltage Monitoring Relay Phase Sequence Protector for Three-Phase System, Without Neutral, Phase Loss, 208-480VAC

EVTSCAN
EVTSCANpgvtmou6dg
0.0 x 0.0 x 0.0 Inches
0.1543 Pounds

Ratings for EVTSCAN (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Enlinxun-US -
Top 26

Three Phase Voltage Monitoring Relay, Three Phase Voltage Small Monitoring Relay Phase Sequence Relay for Mobile Device Connection Control for Mobile Device(M265)

Tgoon

Ratings for Tgoon (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Liyust-US -

Features

This monitoring relay can monitor own working voltage.
8 kinds of rated voltages are adjustable, can apply to voltages in all regions of the world
Show More
Top 27

Voltage Monitoring Relay, SVR1000 Single Phase Over-Voltage Under-Voltage Protection Relay, 35MM Guide Rail (AD220)

Acogedor
Acogedorecqtf2ui7p-03
0.0 x 0.0 x 0.0 Inches
0.6614 Pounds

Ratings for Acogedor (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Acogedor -

Features

Standard modular structure, guide rail type installation.
Ac/dc voltage universal, automatic identification of ac/dc voltage, no need to switch.
Show More
Top 28

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

YWBL-WH
YWBL-WHamgsv40wqb-01
0.0 x 0.0 x 0.0 Inches

Ratings for YWBL-WH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Partgry-T -

Features

✈ Product Name: Voltage Monitoring Relay; Protection function: over voltage, under voltage; Rated voltage: DC 12V/24V/36V/48V; Overvoltage regulation range: 13-17v; Undervoltage adjustment range: 10-14v; Contact capacity: 6A 250VAC (resistivity)
✈ 35mm Guide Rail: With 35mm guide rail and standard modular structure, the voltage monitoring relay is easy to install, easy to operate
Show More
Top 29

GRV8-03 Monitoring Relay, 176V-552V Ultrasmall Three Phase Voltage Relay Voltage Monitoring Relay Adjust for Mobile Device Connection Control(M460)

YYQTGG

Ratings for YYQTGG (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Bnjni-US -

Features

This monitoring relay can monitor own working voltage.
8 kinds of rated voltages are adjustable, can apply to voltages in all regions of the world
Show More

Top 10 Phase Monitoring Relays - Verified to Buy (Apr. 2024)

Top 10 Phase Monitoring Relays Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • SIEMENS
  • Nannday
  • Omron
  • Oumefar
  • YWBL-WH
  • Schneider Electric
  • Tgoon
  • YYQTGG
  • Yuecoom
  • EVTSCAN

Top 10 Phase Monitoring Relays Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 SIM Supply, Inc. 1,470 4.7
🥈 DataAlchemy 570 4.4
🥉 Partgry-T 483 4.7
4 Data Alchemy 454 3.6
5 SEKEGE 450 4.6
6 Amazon.com 385 4.7
7 TerraTree 283 4.1
8 Acogedor 225 4.6
9 KHC Shop 206 4.5
10 VoyageSupply 192 4.7
View or download top Phase Monitoring Relays seller & rating report
SIM Supply, Inc. [1470] DataAlchemy [570] Partgry-T [483] Data Alchemy [454] SEKEGE [450] Amazon.com [385] TerraTree [283] Acogedor [225] KHC Shop [206] VoyageSupply [192] SIM Supply, Inc. 31% DataAlchemy 12% Partgry-T 10% Data Alchemy 10% SEKEGE 10% Amazon.com 8% TerraTree 6% Acogedor 5% KHC Shop 4% VoyageSupply 4%

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Why Should You Trust Us?

Now hundreds and thousands of Industrial Electrical supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Phase Monitoring Relays to buy for new April 2024?

CherryPicks’s Methodology for Evaluating Phase Monitoring Relays

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Industrial Electrical items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 998 of Phase Monitoring Relays reviews based on our selection criteria. It helped us shortlist the top qualified and rated Phase Monitoring Relays for Industrial Electrical, We found that most customers choose Phase Monitoring Relays with an average price of $158.84, and the top brands are Omron, SIEMENS, Schneider Electric, YWBL-WH, Acogedor, Oumefar, EVTSCAN, Nannday, YYQTGG, Tgoon, Yuecoom And WagNian. 

Then our expert-level editors reviewed all those quality items and selected the top 29 Phase Monitoring Relays for you, We have researched hundreds of sellers and picked the top sellers for Industrial Electrical, including SIM Supply, Inc., DataAlchemy, Partgry-T, Data Alchemy, SEKEGE, Amazon.com, TerraTree, Acogedor, KHC Shop, VoyageSupply, Mirandalong-US And Zizaqin. The Siemens 3UG4633-1AL30 Monitoring Relay, Single ... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 1 consumers with an average rating of 5.0.

We've helped a lot of satisfied users get the right Industrial & Scientific product based on their needs, and save lots of time for them to pick Phase Monitoring Relays to buy.


Written By Brandi W. Cortright

Brandi is a woman in tech who loves to write about the electronics and gadgets she has used. On this site, she would be providing you unbiased reviews of electronics as they are released into the market to make you know what to expect before making a purchase.