Top 30 Phase Monitoring Relays on Amazon (Verified You can Buy)
OMRON K8AK-PH1 200/500VAC 200-480VAC, Contact Configuration:DPDT-NC, Contact Current:5A, DPDT, Phase Monitoring Relay, Product Range:K8AK-PH Series, Relay MOUNTING:DIN Rail, TERMINALS:Screw, SUP
Ratings for Omron (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Chip and Processor Inc. | - | ❌ | ❌ | ❌ |
Features
Timemark - B257B-400 - 3-Phase Monitor Relay; Reversal, Loss, Voltage; 110/120 VAC (400 HZ); SPDT (1 Form C); Plug-in - 8 Pin Octal; 10 Amps
Ratings for Time Mark (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Relay Specialties (Authorized Distributor) | - | ❌ | ❌ | ❌ |
SIEMENS 3UG5514-1BR20 Analog Adjustment Monitoring Relay, Phase Failure, Phase Sequence, Asymmetry and Under-Voltage Monitoring 3X 160-690 V AC, 15-70 HZ 2 Changeover Contacts Screw Terminal
Ratings for SIEMENS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| RK PRIME SUPPLY | - | ❌ | ❌ | ❌ |
| Industry4u | - | ❌ | ❌ | ❌ |
YWBL-WH GRV8-04 M460 Voltage Relay,3-Phase Voltage Monitoring Relay Phase Sequence Phase Failure Protection
Ratings for YWBL-WH (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Partgry-T | - | ✅ | ✅ | ✅ |
Features
CARLO GAVAZZI DPB01CM48 13 VA, 3 Phase, 380-480 VAC, 50/60 HZ, DIN Rail MOUNTING, for Phase Loss/Sequence/Over OR UNDERVOLTAGE, Monitoring Relay, SPDT
Ratings for CARLO GAVAZZI (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Radwell International | - | ❌ | ❌ | ❌ |
| Online Components - com | - | ❌ | ❌ | ❌ |
Features
YWBL-WH SVR1000 Single Phase Protection Relay Over-Voltage 50V-300V Under-Voltage 1V-90V AC/DC(AD220)
Ratings for YWBL-WH (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Partgry-T | - | ✅ | ✅ | ✅ |
Features
DPA51CM44 3 Phase Monitoring Relay, High Performance Voltage Protection Circuit for Motor Elevator Air Compressor Systems
Ratings for YWBL-WH (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Partgry-T | - | ❌ | ❌ | ❌ |
Features
Oumefar AC 480V 3 Phase Circuit Protection Voltage Monitoring Relay 5 Indicators Heavy Duty Phase Failure Sequence Protection Relay Stable for Air Compressors
Ratings for Oumefar (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Mirandalong-US | - | ✅ | ✅ | ✅ |
| Lanxued | - | ❌ | ❌ | ❌ |
Features
GRV8-05 Voltage Relay,3-Phase Voltage Monitoring Relay Phase Sequence Phase Failure Protection M265
Ratings for YWBL-WH (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Partgry-T | - | ✅ | ✅ | ✅ |
Features
CARLO GAVAZZI DIB01CB235A 1 SPDT RELAY OUTPUT, 1-PHASE TRUE RMS MONITORING RELAY, 22.5X83.5X99.5MM HOUSING, DIN-RAIL MOUNTING, IP20, MEASURING RANGE 0.1 TO 5A AC/DC, OVER OR UNDER CURRENT, POWER SUPPL
Ratings for CARLO GAVAZZI (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Radwell International | - | ❌ | ❌ | ❌ |
| Mara Industrial | - | ❌ | ❌ | ❌ |
| Online Components - com | - | ❌ | ❌ | ❌ |
Features
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
Ratings for SIEMENS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Data Alchemy | - | ✅ | ✅ | ✅ |
| DataAlchemy | 4,082 | ✅ | ✅ | ✅ |
| clockwerk | - | ✅ | ✅ | ✅ |
| AYDINES | - | ✅ | ✅ | ✅ |
Features
SVR1000 Single Phase Over Voltage Under Voltage Protection Relay Voltage Monitoring Sequence Relay (AD48)
Ratings for YWBL-WH (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Partgry-T | - | ❌ | ❌ | ❌ |
Features
GRV8-03 Three-Phase Voltage Monitoring Relay Phase Sequence And Phase-Off Relay
Ratings for YWBL-WH (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Partgry-T | - | ❌ | ❌ | ❌ |
Features
NJB1-X Three Phase AC Voltage Monitoring Relay Phase Sequence Phase Failure Unbalance Protection Elements NJB1-X1
Ratings for Generic (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| iPartsLike | - | ❌ | ❌ | ❌ |
Features
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
Ratings for SIEMENS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| clockwerk | - | ✅ | ✅ | ✅ |
Features
TG30 3 Phase Phase Sequence Relay Phase Failure Loss Power Supply Monitor Relay 3 Phase Sequence Protector for Motors Pumps 220 380VAC
Ratings for Kadimendium (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Luwenyo | - | ❌ | ❌ | ❌ |
Features
TG30S Phase Sequence Relay for Motors, 220 to 440V AC, 3 Phase
Ratings for Generic (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| yafa | - | ❌ | ❌ | ❌ |
Features
ABB 1SVR550824R9100 Monitoring Relay, 208-440 VAC, 1 CO, 3-Phase
Ratings for ABB (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| DISCOUNTLAND | - | ❌ | ❌ | ❌ |
| Radwell International | - | ❌ | ❌ | ❌ |
| max-thermo | - | ❌ | ❌ | ❌ |
TimeMark - D263 - Phase Monitor Relay; SMT; 575VAC;Adj450-575V;SPDT;10A; 60Hz; Auto Reset
Ratings for Time Mark (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Relay Specialties (Authorized Distributor) | - | ❌ | ❌ | ❌ |
CROUZET 84903020 EMWS 3-PHASE MONITORING RELAY, DIN RAIL, SPDT 5A/3A, 208-480
Ratings for Crouzet (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Radwell International | - | ❌ | ❌ | ❌ |
Features
Macromatic Phase Monitor Relay, 190 to 500VAC, 10A @ 277V, 7A @ 30V, 8 Pins, PMPU
Ratings for Macromatic (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Relay Specialties (Authorized Distributor) | - | ❌ | ❌ | ❌ |
| Megamart USA | 1,732 | ❌ | ❌ | ❌ |
Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 1 CO Contacts, Delay Time, 320–500 Line Supply Voltage
Ratings for SIEMENS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| SIM Supply, Inc. | 1,178 | ❌ | ❌ | ❌ |
| Sparkfish | 455 | ❌ | ❌ | ❌ |
Features
Voltage Phase Sequence Protector 3 Phase Voltage Monitor Monitoring Sequence Relay 4 Wire Over Under Voltage Protector AC 208 to 480V for Machine Tool
Ratings for Walfront (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| numuqia-US | - | ❌ | ❌ | ❌ |
Features
SVR1000/AD220 LCD Display Single Phase Voltage Monitoring Protection Phase Relays
Ratings for HH8BWL (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Duduzxb | - | ❌ | ❌ | ❌ |
| xuzhishangmao | - | ❌ | ❌ | ❌ |
SVR1000 Single Phase Over Voltage Under Voltage Relay Modular Real Time Monitoring LCD Display No Auxiliary Power Supply AD220
Ratings for Garosa (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amoq | - | ❌ | ❌ | ❌ |
Features
Lovato Electric RF381800 Motor Protection Relays, Phase Failure/Single Phase Sensitive. Three Pole (Three Phase), Manual or Automatic Resetting. Direct Mounting On Bf09 - Bf38 Contactors, 13…18A
Ratings for Lovato (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Powertech Controls Co Inc | - | ❌ | ❌ | ❌ |
Features
Walfront Single Phase Overvoltage and Undervoltage Protector SVR1000 Relay 35mm Rail for Electric Motor(AD48)
Ratings for Walfront (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Perfurt | - | ❌ | ❌ | ❌ |
Features
Time Mark 153 Three Phase Monitor
Ratings for Time Mark (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Electrical Advertiser Inc | - | ❌ | ❌ | ❌ |
Features
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
Ratings for SIEMENS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| DataAlchemy | 4,082 | ✅ | ✅ | ✅ |
| Industry4u | - | ✅ | ✅ | ✅ |
| Probo Sales | - | ❌ | ❌ | ❌ |
Features
Bewinner 3 Phase Voltage Phase Sequence Protector AC 208-480V, Over Under Voltage Protector Monitor Relay with Adjustable Values, AutoManual Reset, Real Time Monitoring for Motor
Ratings for Bewinner (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Bewinner | - | ❌ | ❌ | ❌ |
Features
Top 10 Phase Monitoring Relays - Verified to Buy (October 2026)
- 1. OMRON K8AK-PH1 200/500VAC 200-480VAC, Contact Configuration:DPDT-NC, Contact Current:5A, DPDT, Phase...
- 2. Timemark - B257B-400 - 3-Phase Monitor Relay; Reversal, Loss, Voltage;...
- 3. SIEMENS 3UG5514-1BR20 Analog Adjustment Monitoring Relay, Phase Failure, Phase Sequence,...
- 4. YWBL-WH GRV8-04 M460 Voltage Relay,3-Phase Voltage Monitoring Relay Phase Sequence...
- 5. CARLO GAVAZZI DPB01CM48 13 VA, 3 Phase, 380-480 VAC, 50/60...
- 6. YWBL-WH SVR1000 Single Phase Protection Relay Over-Voltage 50V-300V Under-Voltage 1V-90V...
- 7. DPA51CM44 3 Phase Monitoring Relay, High Performance Voltage Protection Circuit...
- 8. Oumefar AC 480V 3 Phase Circuit Protection Voltage Monitoring Relay...
- 9. GRV8-05 Voltage Relay,3-Phase Voltage Monitoring Relay Phase Sequence Phase Failure...
- 10. CARLO GAVAZZI DIB01CB235A 1 SPDT RELAY OUTPUT, 1-PHASE TRUE RMS...
Top 10 Phase Monitoring Relays Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- Omron
- Time Mark
- SIEMENS
- YWBL-WH
- CARLO GAVAZZI
- Oumefar
- Generic
- Kadimendium
- ABB
- Crouzet
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.
- 1. Sparkfish : 92,013 Yearly Feedback , Avg. Ratings 4.9
- 2. SIM Supply, Inc. : 44,083 Yearly Feedback , Avg. Ratings 4.6
- 3. Megamart USA : 32,788 Yearly Feedback , Avg. Ratings 4.8
- 4. DataAlchemy : 15,845 Yearly Feedback , Avg. Ratings 4.4
- 5. Probo Sales : 4,213 Yearly Feedback , Avg. Ratings 4.9
- 6. DISCOUNTLAND : 2,861 Yearly Feedback , Avg. Ratings 4.8
- 7. Partgry-T : 2,624 Yearly Feedback , Avg. Ratings 4.7
- 8. Perfurt : 2,163 Yearly Feedback , Avg. Ratings 4.7
- 9. Data Alchemy : 1,652 Yearly Feedback , Avg. Ratings 3.6
- 10. Bewinner : 1,517 Yearly Feedback , Avg. Ratings 4.6
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | Sparkfish | 92,013 | 4.9 |
| 🥈 | SIM Supply, Inc. | 44,083 | 4.6 |
| 🥉 | Megamart USA | 32,788 | 4.8 |
| 4 | DataAlchemy | 15,845 | 4.4 |
| 5 | Probo Sales | 4,213 | 4.9 |
| 6 | DISCOUNTLAND | 2,861 | 4.8 |
| 7 | Partgry-T | 2,624 | 4.7 |
| 8 | Perfurt | 2,163 | 4.7 |
| 9 | Data Alchemy | 1,652 | 3.6 |
| 10 | Bewinner | 1,517 | 4.6 |
[Get] Phase Monitoring Relays Deals (✅Exclusively for Prime)
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Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.
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 October 2026?
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 306 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 $90.37, and the top brands are Generic, Omron, SIEMENS, Walfront, Bewinner, Garosa, YWBL-WH, Oumefar And Kadimendium.
Then our expert-level editors reviewed all those quality items and selected the top 30 Phase Monitoring Relays for you, We have researched hundreds of sellers and picked the top sellers for Industrial Electrical, including Sparkfish, SIM Supply, Inc., Megamart USA, DataAlchemy, Probo Sales, DISCOUNTLAND, Partgry-T, Perfurt, Data Alchemy, Bewinner, Mara Industrial And Radwell International. The OMRON K8AK-PH1 200/500VAC 200-480VAC, Contact C... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 0 consumers with an average rating of 0.0.
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.
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.