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Protection Relays & Systems

Protection Relays & Systems protect electrical circuits by detecting faults and preventing damage. Key attributes include Delay Time, Operating Temperature, and Trip Range. These components are essential for applications such as switching and control panels.

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What are Protection Relays & Systems ?

Protection Relays & Systems are devices designed to monitor electrical circuits and provide protection against faults. They are commonly used in switching and control panels, ensuring the safe operation of electrical systems. Important specifications for selection include Delay Time, which affects response speed; Operating Temperature, which ensures reliability under varying conditions; and Trip Range, which determines the sensitivity to faults. Validating lifecycle status and sourcing options is crucial for procurement teams to ensure compatibility and performance.

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Part & Mfr Delay Time Features Function Mounting Type Operating Temperature Termination Style Trip Range Voltage
Product image for VR-3-L-1 by Rishabh Instruments
VR-3-L-1
Rishabh Instruments
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 0 ~ 10s - Multiple DIN Rail -10°C ~ 55°C Screw Terminal 82.5 ~ 300VAC 110 ~ 240VAC
Product image for VR-3-M-1 by Rishabh Instruments
VR-3-M-1
Rishabh Instruments
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 0 ~ 10s - Ground Fault, Overvoltage, Phase Imbalance, Phase Loss, Phase Sequence, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 518.75 ~ 285.75VAC 381 ~ 415VAC
Product image for VR-1-L-2 by Rishabh Instruments
VR-1-L-2
Rishabh Instruments
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 0 ~ 10s - Ground Fault, Overvoltage, Phase Imbalance, Phase Loss, Phase Sequence, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 43.5 ~ 172.5VAC 58 ~ 138VAC
Product image for VR-1-H-2 by Rishabh Instruments
VR-1-H-2
Rishabh Instruments
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 0 ~ 10s - Ground Fault, Overvoltage, Phase Imbalance, Phase Loss, Phase Sequence, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 165 ~ 317.5VAC 220 ~ 254VAC
Product image for VR-3-L-2 by Rishabh Instruments
VR-3-L-2
Rishabh Instruments
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 0 ~ 10s - Ground Fault, Overvoltage, Phase Imbalance, Phase Loss, Phase Sequence, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 82.5 ~ 300VAC 110 ~ 240VAC
Product image for VR-3-H-2 by Rishabh Instruments
VR-3-H-2
Rishabh Instruments
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 0 ~ 10s - Ground Fault, Overvoltage, Phase Imbalance, Phase Loss, Phase Sequence, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 311.25 ~ 600VAC 415 ~ 480VAC
Product image for VR-3-M-2 by Rishabh Instruments
VR-3-M-2
Rishabh Instruments
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 0 ~ 10s - Ground Fault, Overvoltage, Phase Imbalance, Phase Loss, Phase Sequence, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 518.75 ~ 285.75VAC 381 ~ 415VAC
Product image for AR-1-1-2 by Rishabh Instruments
AR-1-1-2
Rishabh Instruments
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 0 ~ 10s Automatic Reset, Manual Reset Ground Fault, Overcurrent, Undercurrent DIN Rail -10°C ~ 55°C Screw Terminal 1 ~ 5A 60 ~ 300VAC/DC
Product image for AR-1-1-1 by Rishabh Instruments
AR-1-1-1
Rishabh Instruments
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 0 ~ 10s Automatic Reset, Manual Reset Ground Fault, Overcurrent, Undercurrent DIN Rail -10°C ~ 55°C Screw Terminal 1 ~ 5A 60 ~ 300VAC/DC
Product image for AR-1-2-1 by Rishabh Instruments
AR-1-2-1
Rishabh Instruments
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 0 ~ 10s Automatic Reset, Manual Reset Ground Fault, Overcurrent, Undercurrent DIN Rail -10°C ~ 55°C Screw Terminal 1 ~ 5A 60 ~ 300VAC/DC
Product image for AR-3-1-2 by Rishabh Instruments
AR-3-1-2
Rishabh Instruments
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 0 ~ 10s Automatic Reset, Manual Reset Ground Fault, Overcurrent, Undercurrent DIN Rail -10°C ~ 55°C Screw Terminal 1 ~ 5A 60 ~ 300VAC/DC
Product image for SVM-12A-12 by R-K Electronics, Inc.
SVM-12A-12
Download Datasheet for SVM-12A-12
R-K Electronics, Inc.
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 0.5s - Undervoltage Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) 1.76 ~ 2.4VAC 11 ~ 15VAC
Product image for AR-1-2-2 by Rishabh Instruments
AR-1-2-2
Rishabh Instruments
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 0 ~ 10s Automatic Reset, Manual Reset Ground Fault, Overcurrent, Undercurrent DIN Rail -10°C ~ 55°C Screw Terminal 1 ~ 5A 60 ~ 300VAC/DC
Product image for AR-3-1-1 by Rishabh Instruments
AR-3-1-1
Rishabh Instruments
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 0 ~ 10s Automatic Reset, Manual Reset Ground Fault, Overcurrent, Undercurrent DIN Rail -10°C ~ 55°C Screw Terminal 1 ~ 5A 60 ~ 300VAC/DC
Product image for AR-3-2-2 by Rishabh Instruments
AR-3-2-2
Rishabh Instruments
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 0 ~ 10s Automatic Reset, Manual Reset Ground Fault, Overcurrent, Undercurrent DIN Rail -10°C ~ 55°C Screw Terminal 1 ~ 5A 60 ~ 300VAC/DC
Product image for AR-3-2-1 by Rishabh Instruments
AR-3-2-1
Rishabh Instruments
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 0 ~ 10s Automatic Reset, Manual Reset Ground Fault, Overcurrent, Undercurrent DIN Rail -10°C ~ 55°C Screw Terminal 1 ~ 5A 60 ~ 300VAC/DC
Product image for RISH RELAY V/HZ-3-1002-LA by Rishabh Instruments
RISH RELAY V/HZ-3-1002-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V-3-3000-LA by Rishabh Instruments
RISH RELAY V-3-3000-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V/HZ-3-1000-LA by Rishabh Instruments
RISH RELAY V/HZ-3-1000-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V-3-3002-LA by Rishabh Instruments
RISH RELAY V-3-3002-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V-1-3001-LA by Rishabh Instruments
RISH RELAY V-1-3001-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V-3-3001-LA by Rishabh Instruments
RISH RELAY V-3-3001-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 20 ~ 40VAC, 60VDC
Product image for DPM-24D-MRTU-B by R-K Electronics, Inc.
DPM-24D-MRTU-B
R-K Electronics, Inc.
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 2 ~ 10s - Multiple Chassis Mount -40°C ~ 59°C Screw Terminal - 24VDC
Product image for RISH RELAY V-3-3000-HA by Rishabh Instruments
RISH RELAY V-3-3000-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 60 ~ 300VAC/DC
Product image for RISH RELAY V/HZ-3-1000-HA by Rishabh Instruments
RISH RELAY V/HZ-3-1000-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 60 ~ 300VAC/DC
Product image for RISH RELAY V-1-3001-HA by Rishabh Instruments
RISH RELAY V-1-3001-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 60 ~ 300VAC/DC
Product image for RISH RELAY V-3-3001-HA by Rishabh Instruments
RISH RELAY V-3-3001-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 60 ~ 300VAC/DC
Product image for RISH RELAY V-1-3002-HA by Rishabh Instruments
RISH RELAY V-1-3002-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 60 ~ 300VAC/DC
Product image for RISH RELAY V-1-3000-LA by Rishabh Instruments
RISH RELAY V-1-3000-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V/HZ-3-1002-HA by Rishabh Instruments
RISH RELAY V/HZ-3-1002-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 60 ~ 300VAC/DC
Product image for RISH RELAY V-3-3002-HA by Rishabh Instruments
RISH RELAY V-3-3002-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 60 ~ 300VAC/DC
Product image for RISH RELAY V/HZ-1-1001-LA by Rishabh Instruments
RISH RELAY V/HZ-1-1001-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V-1-3000-HA by Rishabh Instruments
RISH RELAY V-1-3000-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 60 ~ 300VAC/DC
Product image for RISH RELAY V-1-3002-LA by Rishabh Instruments
RISH RELAY V-1-3002-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overvoltage, Phase Imbalance, Phase Loss, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal - 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V/HZ-3-1001-LA by Rishabh Instruments
RISH RELAY V/HZ-3-1001-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V/HZ-1-1002-HA by Rishabh Instruments
RISH RELAY V/HZ-1-1002-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 60 ~ 300VAC/DC
Product image for RISH RELAY V/HZ-3-1001-HA by Rishabh Instruments
RISH RELAY V/HZ-3-1001-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 60 ~ 300VAC/DC
Product image for RISH RELAY V/HZ-1-1000-HA by Rishabh Instruments
RISH RELAY V/HZ-1-1000-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 60 ~ 300VAC/DC
Product image for RISH RELAY V/HZ-1-1000-LA by Rishabh Instruments
RISH RELAY V/HZ-1-1000-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V/HZ-1-1002-LA by Rishabh Instruments
RISH RELAY V/HZ-1-1002-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 20 ~ 40VAC, 60VDC
Product image for RISH RELAY V/HZ-1-1001-HA by Rishabh Instruments
RISH RELAY V/HZ-1-1001-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Overfrequency, Overvoltage, Phase Imbalance, Phase Loss, Underfrequency, Undervoltage DIN Rail -10°C ~ 55°C Screw Terminal 45Hz ~ 66Hz 60 ~ 300VAC/DC
Product image for RISH ELR-4000-LA-TS35 by Rishabh Instruments
RISH ELR-4000-LA-TS35
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Ground Fault DIN Rail -10°C ~ 55°C Screw Terminal 30mA ~ 30A 20 ~ 40VAC, 60VDC
Product image for MPU-32-X69X-01X00 by Littelfuse Inc.
MPU-32-X69X-01X00
Littelfuse Inc.
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 - - Multiple Panel Mount -40°C ~ 60°C Screw Terminal - 65 ~ 265VAC, 80 ~ 275VDC
Product image for RISH ELR-4000-LA-96 by Rishabh Instruments
RISH ELR-4000-LA-96
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Ground Fault Panel Mount -10°C ~ 55°C Screw Terminal 30mA ~ 30A 20 ~ 40VAC, 60VDC
Product image for RISH ELR-4000-HA-TS35 by Rishabh Instruments
RISH ELR-4000-HA-TS35
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Ground Fault DIN Rail -10°C ~ 55°C Screw Terminal 30mA ~ 30A 60 ~ 300VAC/DC
Product image for RISH ELR-4000-HA-96 by Rishabh Instruments
RISH ELR-4000-HA-96
Rishabh Instruments
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 0 ~ 30s Automatic Reset, Manual Reset, Test Button Ground Fault Panel Mount -10°C ~ 55°C Screw Terminal 30mA ~ 30A 60 ~ 300VAC/DC
Product image for RISH RELAY I-1-2002-LA by Rishabh Instruments
RISH RELAY I-1-2002-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, CT Loop Monitoring, Manual Reset, Test Button Overcurrent, Overload, Undercurrent, Underload DIN Rail -10°C ~ 55°C Screw Terminal - 20 ~ 40VAC, 60VDC
Product image for RISH RELAY I-1-2000-HA by Rishabh Instruments
RISH RELAY I-1-2000-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, CT Loop Monitoring, Manual Reset, Test Button Overcurrent, Overload, Undercurrent, Underload DIN Rail -10°C ~ 55°C Screw Terminal - 60 ~ 300VAC/DC
Product image for RISH RELAY I-3-2000-LA by Rishabh Instruments
RISH RELAY I-3-2000-LA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, CT Loop Monitoring, Manual Reset, Test Button Overcurrent, Overload, Undercurrent, Underload DIN Rail -10°C ~ 55°C Screw Terminal - 20 ~ 40VAC, 60VDC
Product image for RISH RELAY I-3-2000-HA by Rishabh Instruments
RISH RELAY I-3-2000-HA
Rishabh Instruments
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 0 ~ 30s Automatic Reset, CT Loop Monitoring, Manual Reset, Test Button Overcurrent, Overload, Undercurrent, Underload DIN Rail -10°C ~ 55°C Screw Terminal - 60 ~ 300VAC/DC
Showing 451-500 of 1,359 products

About Protection Relays & Systems

Protection Relays & Systems play a vital role in ensuring the safety and reliability of electrical systems. These components are designed to detect abnormal conditions and initiate protective actions to prevent damage to equipment and ensure operational continuity.

When sourcing Protection Relays & Systems, it is important to consider key attributes such as Delay Time, Features, Function, Mounting Type, Operating Temperature, Termination Style, Trip Range, and Voltage. These specifications will help you identify the right relay for your specific application needs.

Common applications for Protection Relays & Systems include switching and control panels, new product design and prototyping, production electronics assembly, maintenance and field replacement, and engineering evaluation and qualification. Understanding the operational context will aid in selecting the most suitable components.

Before submitting a Request for Quotation (RFQ), buyers should prioritize comparing critical specifications and validating lifecycle status. It is also advisable to confirm mechanical and electrical compatibility with existing design constraints to minimize sourcing risks. Utilizing parametric filtering can streamline the selection process and enhance procurement efficiency.

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