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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.

1,359 active parts
16 manufacturers
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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.

Parts in this category

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Part & Mfr Total Stock Pricing & RFQ Delay Time Features Function Mounting Type Operating Temperature Termination Style Trip Range Voltage
CLR-120A-1002
CLR-120A-1002
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R-K Electronics, Inc.
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 0.5s - Overspeed Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) 0.7 ~ 7PPS 100 ~ 125VAC
CLR-24V-1012
CLR-24V-1012
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R-K Electronics, Inc.
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 0.5s - Overspeed Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) 1 ~ 10PPS 20 ~ 24VAC
SE-330-22-01
SE-330-22-01
Littelfuse Inc.
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 - - - - - - - -
CLR-24D-5001
CLR-24D-5001
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R-K Electronics, Inc.
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 0.5s - Underspeed Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) - 20 ~ 24VDC
CLR-120A-1101
CLR-120A-1101
Download Datasheet for CLR-120A-1101
R-K Electronics, Inc.
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 0.5s - Underspeed Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) 10 ~ 100PPS 100 ~ 125VAC
CLR-120A-2001
CLR-120A-2001
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R-K Electronics, Inc.
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 0.5s - Underspeed Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) - 100 ~ 125VAC
CLR-120A-6001
CLR-120A-6001
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R-K Electronics, Inc.
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 0.5s - Underspeed Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) - 100 ~ 125VAC
CLR-120A-1052
CLR-120A-1052
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R-K Electronics, Inc.
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 0.5s - Overspeed Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) 5 ~ 50PPS 100 ~ 125VAC
CLR-120A-1051
CLR-120A-1051
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R-K Electronics, Inc.
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 0.5s - Underspeed Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) 5 ~ 50PPS 100 ~ 125VAC
CLR-24V-1001
CLR-24V-1001
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R-K Electronics, Inc.
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 0.5s - Underspeed Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) 0.7 ~ 7PPS 20 ~ 24VAC
CLR-240A-2001
CLR-240A-2001
Download Datasheet for CLR-240A-2001
R-K Electronics, Inc.
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 0.5s - Underspeed Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) - 200 ~ 240VAC
STR-120A-B
STR-120A-B
Download Datasheet for STR-120A-B
R-K Electronics, Inc.
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 - - - Chassis Mount -40°C ~ 65°C Screw Terminal - 120VAC
STR-24A-B
STR-24A-B
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R-K Electronics, Inc.
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 - - - Chassis Mount -40°C ~ 65°C Screw Terminal - 24VAC
STR-12D-B
STR-12D-B
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R-K Electronics, Inc.
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 - - - Chassis Mount -40°C ~ 65°C Screw Terminal - 12VDC
STR-24D-B
STR-24D-B
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R-K Electronics, Inc.
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 - - - Chassis Mount -40°C ~ 65°C Screw Terminal - 24VDC
SVM-575A-19
SVM-575A-19
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R-K Electronics, Inc.
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 0.5s - Undervoltage Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) - -
PRR-300
PRR-300
Download Datasheet for PRR-300
R-K Electronics, Inc.
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 5s - Phase Loss Chassis Mount 0°C ~ 40°C Screw Terminal - 380 ~ 415VAC
PRR-200
PRR-200
Download Datasheet for PRR-200
R-K Electronics, Inc.
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 5s - Phase Loss Chassis Mount 0°C ~ 40°C Screw Terminal - 200 ~ 240VAC
PRR-100
PRR-100
Download Datasheet for PRR-100
R-K Electronics, Inc.
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 5s - Phase Loss Chassis Mount 0°C ~ 40°C Screw Terminal - 110 ~ 120VAC
DPM-240A-MRTU-T
DPM-240A-MRTU-T
R-K Electronics, Inc.
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 2 ~ 10s - Multiple Chassis Mount -40°C ~ 65°C Quick Connect - 0.187"/0.250" - 208 ~ 240VAC
DPM-24A-MRTU-T
DPM-24A-MRTU-T
R-K Electronics, Inc.
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 2 ~ 10s - Multiple Chassis Mount -40°C ~ 65°C Quick Connect - 0.187"/0.250" - 24VAC
DPM-120A-MRTU-T
DPM-120A-MRTU-T
R-K Electronics, Inc.
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 2 ~ 10s - Multiple Chassis Mount -40°C ~ 65°C Quick Connect - 0.187"/0.250" - 110 ~ 120VAC
DPM-12D-MRTU-T
DPM-12D-MRTU-T
R-K Electronics, Inc.
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 2 ~ 10s - Multiple Chassis Mount -40°C ~ 65°C Quick Connect - 0.187"/0.250" - 12VDC
DPM-24D-MRTU-T
DPM-24D-MRTU-T
R-K Electronics, Inc.
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 2 ~ 10s - Multiple Chassis Mount -40°C ~ 65°C Quick Connect - 0.187"/0.250" - 24VDC
PVC-200-AR
PVC-200-AR
Download Datasheet for PVC-200-AR
R-K Electronics, Inc.
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 5s Automatic Reset Overvoltage, Undervoltage Chassis Mount -20°C ~ 40°C Screw Terminal - 208 ~ 240VAC
PVC-100-AR
PVC-100-AR
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R-K Electronics, Inc.
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 5s Automatic Reset Overvoltage, Undervoltage Chassis Mount -20°C ~ 40°C Screw Terminal - 110 ~ 120VAC
DPMP-120A-B
DPMP-120A-B
Download Datasheet for DPMP-120A-B
R-K Electronics, Inc.
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 2 ~ 10s Manual Reset Multiple Chassis Mount -40°C ~ 59°C Screw Terminal - 120VAC
DPMP-240A-B
DPMP-240A-B
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R-K Electronics, Inc.
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 2 ~ 10s Manual Reset Multiple Chassis Mount -40°C ~ 59°C Screw Terminal - 240VAC
DPMP-24A-B
DPMP-24A-B
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R-K Electronics, Inc.
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 2 ~ 10s Manual Reset Multiple Chassis Mount -40°C ~ 59°C Screw Terminal - 24VAC
PRR-400
PRR-400
Download Datasheet for PRR-400
R-K Electronics, Inc.
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 5s - Phase Loss Chassis Mount 0°C ~ 40°C Screw Terminal - 440 ~ 480VAC
PRR-600
PRR-600
Download Datasheet for PRR-600
R-K Electronics, Inc.
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 5s - Phase Loss Chassis Mount 0°C ~ 40°C Screw Terminal - 575 ~ 600VAC
MVP-A1C
MVP-A1C
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R-K Electronics, Inc.
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 1 ~ 5s - Multiple Socketable 0°C ~ 40°C Plug In, 8 Pin (Octal) - 200 ~ 480VAC
MVPL-120A-A1C
MVPL-120A-A1C
Download Datasheet for MVPL-120A-A1C
R-K Electronics, Inc.
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 2 ~ 300s Manual Reset Multiple Chassis Mount 0°C ~ 65°C Plug In, 8 Pin (Octal) - 120VAC
MVPL-240A-A1C
MVPL-240A-A1C
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R-K Electronics, Inc.
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 2 ~ 300s Manual Reset Multiple Chassis Mount 0°C ~ 65°C Plug In, 8 Pin (Octal) - 240VAC
MVPL-24A-A1C
MVPL-24A-A1C
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R-K Electronics, Inc.
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 2 ~ 300s Manual Reset Multiple Chassis Mount 0°C ~ 65°C Plug In, 8 Pin (Octal) - 24VAC
STRP-120A-B
STRP-120A-B
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R-K Electronics, Inc.
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 - - - Chassis Mount -40°C ~ 60°C Screw Terminal - 120VAC
DPMP-12D-B
DPMP-12D-B
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R-K Electronics, Inc.
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 2 ~ 10s Manual Reset Multiple Chassis Mount -40°C ~ 59°C Screw Terminal - 12VDC
DPMP-24D-B
DPMP-24D-B
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R-K Electronics, Inc.
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 2 ~ 10s Manual Reset Multiple Chassis Mount -40°C ~ 59°C Screw Terminal - 24VDC
DPM-240A-MRTU-B
DPM-240A-MRTU-B
R-K Electronics, Inc.
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 2 ~ 10s - Multiple Chassis Mount -40°C ~ 59°C Screw Terminal - 208 ~ 240VAC
DPM-24A-MRTU-B
DPM-24A-MRTU-B
R-K Electronics, Inc.
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 2 ~ 10s - Multiple Chassis Mount -40°C ~ 59°C Screw Terminal - 24VAC
DPM-120A-MRTU-B
DPM-120A-MRTU-B
R-K Electronics, Inc.
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 2 ~ 10s - Multiple Chassis Mount -40°C ~ 59°C Screw Terminal - 110 ~ 120VAC
PRSO-100
PRSO-100
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R-K Electronics, Inc.
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 - - - Chassis Mount - Screw Terminal - -
PVC-400-AR
PVC-400-AR
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R-K Electronics, Inc.
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 5s Automatic Reset Overvoltage, Undervoltage Chassis Mount -20°C ~ 40°C Screw Terminal - 440 ~ 480VAC
PVC-600-AR
PVC-600-AR
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R-K Electronics, Inc.
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 5s Automatic Reset Overvoltage, Undervoltage Chassis Mount -20°C ~ 40°C Screw Terminal - 575 ~ 600VAC
PRSO-200
PRSO-200
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R-K Electronics, Inc.
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 - - - Chassis Mount - Screw Terminal - -
PVC-300-AR
PVC-300-AR
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R-K Electronics, Inc.
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 5s Automatic Reset Overvoltage, Undervoltage Chassis Mount -20°C ~ 40°C Screw Terminal - 380 ~ 415VAC
PRSL-100
PRSL-100
Download Datasheet for PRSL-100
R-K Electronics, Inc.
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 - - - Chassis Mount - Screw Terminal - -
PRSL-300
PRSL-300
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R-K Electronics, Inc.
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 - - - Chassis Mount - Screw Terminal - -
STRP-12D-B
STRP-12D-B
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R-K Electronics, Inc.
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 - - - Chassis Mount -40°C ~ 60°C Screw Terminal - 12VDC
PRSL-200
PRSL-200
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R-K Electronics, Inc.
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 - - - Chassis Mount - Screw Terminal - -
Showing 1001-1050 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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