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Power System Protection Relay

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Time Relay Overload Relay Relay Switch Relay Electric Relay Contactor

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10kv Substation Protection Relay Device in Power System for Distribution Networks

10kv Substation Protection Relay Device in Power System for Distribution Networks

US $ 310.8-311 / Piece FOB
1 Piece (MOQ)
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Main Products: Power Meter, Energy Meter, WiFi Meter, RS485 Modbus-RTU Meter, Multifunction Relay, Motor Protection Relay, Busbar Temperature Sensor, Power Tag, Insulation Monitor, Current Sensor
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Jiangsu Acrel Electrical Manufacturing Co., Ltd.

Manufacturer/Factory & Trading Company

Jiangsu, China Since 2020
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24V DIN Rail Overcurrent Earth Fault Protection AC DC Earth Leakage Relay for Single Phase 3 Phase Power System
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24V DIN Rail Overcurrent Earth Fault Protection AC DC Earth Leakage Relay for Single Phase 3 Phase Power System

US $ 50-150 / Piece FOB
1 Piece (MOQ)
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Load : Medium Power Relay
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Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Advanced Feeder Power Relay for Enhanced Protection Systems
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Advanced Feeder Power Relay for Enhanced Protection Systems

US $ 6,500-7,700 / unit FOB
1 unit (MOQ)
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Main Products: Power Meter, Electric Meter, Energy Meter, Panel Meter, Power Control System Scada, Single Phase Multifunction Meter, Smart Meter, Protection Relay, Voltage Relay, Control Relay
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Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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Reliable China Micomp243 Feeder Protection Relay for Power Systems
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Reliable China Micomp243 Feeder Protection Relay for Power Systems

US $ 6,500-7,700 / unit FOB
1 unit (MOQ)
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Material : Stainless Steel
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Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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Strom St28og-T Solid State Medium Voltage Protection Control Relay for Industrial Power Systems and Power Station Feeder

Strom St28og-T Solid State Medium Voltage Protection Control Relay for Industrial Power Systems and Power Station Feeder

US $ 500 / Set FOB
1 Set (MOQ)
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Main Products: Secondary Devices For Substations, Power Plants, Transformers, Including Protection Relay, Power Meter, Online Monitoring And Measurement, Controlling Devices
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ZHUHAI STROM ELECTRIC CO., LTD.

Manufacturer/Factory & Trading Company

Guangdong, China Since 2026
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RS485 Modbus Protection Relay Microprocessor for Substation Automation and Power System Monitoring Self Powered

RS485 Modbus Protection Relay Microprocessor for Substation Automation and Power System Monitoring Self Powered

US $ 280 / Set FOB
1 Set (MOQ)
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Voltage Level : Medium Voltage
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ZHUHAI STROM ELECTRIC CO., LTD.

Manufacturer/Factory & Trading Company

Guangdong, China Since 2026
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Overcurrent Protection Relays for Electrical Power System

Overcurrent Protection Relays for Electrical Power System

US $ 777-1,036 / Piece FOB
1 Piece (MOQ)
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Main Products: Power Meter, Energy Meter, WiFi Meter, RS485 Modbus-RTU Meter, Multifunction Relay, Motor Protection Relay, Busbar Temperature Sensor, Power Tag, Insulation Monitor, Current Sensor
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Jiangsu Acrel Electrical Manufacturing Co., Ltd.

Manufacturer/Factory & Trading Company

Jiangsu, China Since 2020
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Advanced Linear Model Feeder Relay Protection Power System
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Advanced Linear Model Feeder Relay Protection Power System

US $ 1,500-2,000 / unit FOB
1 unit (MOQ)
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Certification : RoHS, CCC, ISO: 9001, CE
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Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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Reliable Feeder Protection Relay Micomp243 for Power Systems
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Reliable Feeder Protection Relay Micomp243 for Power Systems

US $ 6,500-7,700 / unit FOB
1 unit (MOQ)
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Main Products: Power Meter, Electric Meter, Energy Meter, Panel Meter, Power Control System Scada, Single Phase Multifunction Meter, Smart Meter, Protection Relay, Voltage Relay, Control Relay
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Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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Low-Power Consumption Combination Structure Generator Protection Electrical Control System Relay
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Low-Power Consumption Combination Structure Generator Protection Electrical Control System Relay

US $ 1,500-2,000 / unit FOB
1 unit (MOQ)
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Condition : New
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Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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3 Channel Arc Guard Flash Fault Detection Protection Relay for Mv Hv Switchgear Power Distribution Systems
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3 Channel Arc Guard Flash Fault Detection Protection Relay for Mv Hv Switchgear Power Distribution Systems

US $ 800-3,000 / Piece FOB
1 Piece (MOQ)
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Main Products: Panel Meter, Energy Meter, Multifunction Power Meter, Protection Relay, Electrical Transducer, Thermostat, Smart Meter, Temperature Sensor, Energy Metering, Low Voltages
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Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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P5f30 Series Numerical Relay Integrated Multifunction Protection RS-485 Interface for Power Distribution Systems
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P5f30 Series Numerical Relay Integrated Multifunction Protection RS-485 Interface for Power Distribution Systems

US $ 6,500-7,700 / unit FOB
1 unit (MOQ)
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Signal : Discrete
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Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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Protective Guard System Arc Flash Protection Relay for Mv Power Distribution Power Generation
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Protective Guard System Arc Flash Protection Relay for Mv Power Distribution Power Generation

US $ 1,500-3,000 / Piece FOB
1 Piece (MOQ)
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Main Products: Panel Meter, Energy Meter, Multifunction Power Meter, Protection Relay, Electrical Transducer, Thermostat, Smart Meter, Temperature Sensor, Energy Metering, Low Voltages
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Audited Supplier
Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Under Over Voltage Protection Relay for 3 Phase Systems

Under Over Voltage Protection Relay for 3 Phase Systems

US $ 7.32 / Piece FOB
5 Pieces (MOQ)
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Type : Electric Parameter Relay
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Zhejiang Tongzheng Electric Co., Ltd.

Manufacturer/Factory & Trading Company

Zhejiang, China Since 2025
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Advanced Voltage and Current Protection Relay for Power Systems
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Advanced Voltage and Current Protection Relay for Power Systems

US $ 3,000-3,500 / unit FOB
1 unit (MOQ)
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Main Products: Power Meter, Electric Meter, Energy Meter, Panel Meter, Power Control System Scada, Single Phase Multifunction Meter, Smart Meter, Protection Relay, Voltage Relay, Control Relay
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Audited Supplier
Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
Chat Now Send Inquiry
Advanced Automatic Protection Relay Device for Power Systems
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Advanced Automatic Protection Relay Device for Power Systems

US $ 3,000-3,500 / unit FOB
1 unit (MOQ)
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Certification : RoHS, CCC, ISO: 9001, CE
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Audited Supplier
Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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Three Phase Thermal Overload Relay Lrd33 Motor Protection Relay with Manual/Auto Reset for AC Contactor

Three Phase Thermal Overload Relay Lrd33 Motor Protection Relay with Manual/Auto Reset for AC Contactor

US $ 8.52-10.61 / Piece FOB
5 Pieces (MOQ)
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Main Products: MCCB, Molded Case Circuit Breaker, Air Circuit Breaker, AC Contactor, Motor Protection Circuit Breaker, MCCB Accessories, Contactor Accessories, Acb Accessories
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Yueqing Shendian Electrical Co., Ltd.

Zhejiang, China Since 2012
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Pr203 Digital Motor Protection Relay, Three-Phase Motor Under Voltage Over Voltage Relay, Electronic Relay for 380V System

Pr203 Digital Motor Protection Relay, Three-Phase Motor Under Voltage Over Voltage Relay, Electronic Relay for 380V System

US $ 60-150 / Piece FOB
1 Piece (MOQ)
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Phase : 3
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Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Heavy Duty High Current Starter Relay for Auto Protection

Heavy Duty High Current Starter Relay for Auto Protection

US $ 0.1-0.3 / Piece FOB
500 Pieces (MOQ)
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Main Products: Spare Parts of Home Appliance, AC DC Fan Motor, Filter Drier, AC Contactor, Gas Torch, Compressor, Defrosting Timer, Manifold Guage, Thermostat, Remote Control
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Ningbo Coolwell Import & Export Co., Ltd.

Trading Company

Zhejiang, China Since 2021
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Ts213 Jrs4-09304 Overload Protection Relay for Motor Safety Systems
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Ts213 Jrs4-09304 Overload Protection Relay for Motor Safety Systems

US $ 1-9,999 / Piece FOB
1 Piece (MOQ)
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Protective Characteristics : Sealed Relay
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Audited Supplier
Beijing Zhongping Technology Co., Ltd.

Trading Company

Beijing, China Since 2025
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Related Videos
  • What is 24V DIN Rail Overcurrent Earth Fault Protection AC DC Earth Leakage Relay for Single Phase 3 Phase Power System
    What is 24V DIN Rail Overcurrent Earth Fault Protection AC DC Earth Leakage Relay for Single Phase 3 Phase Power System
    US $ 50-150 /Piece
    1 Piece (MOQ)
    Send Inquiry
  • What is Advanced Feeder Power Relay for Enhanced Protection Systems
    What is Advanced Feeder Power Relay for Enhanced Protection Systems
    US $ 6,500-7,700 /unit
    1 unit (MOQ)
    Send Inquiry
  • What is Reliable China Micomp243 Feeder Protection Relay for Power Systems
    What is Reliable China Micomp243 Feeder Protection Relay for Power Systems
    US $ 6,500-7,700 /unit
    1 unit (MOQ)
    Send Inquiry
  • What is Strom St28og-T Solid State Medium Voltage Protection Control Relay for Industrial Power Systems and Power Station Feeder
    What is Strom St28og-T Solid State Medium Voltage Protection Control Relay for Industrial Power Systems and Power Station Feeder
    US $ 500 /Set
    1 Set (MOQ)
    Send Inquiry
High Voltage Electrical Relay System for Circuit Protection
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High Voltage Electrical Relay System for Circuit Protection

US $ 2.1-2.3 / Piece FOB
1,000 Pieces (MOQ)
More
Main Products: Casting, Transformer, AC Contactor, Voltage Stabilizer, Relay, Motor Circuit Breaker, Motor Protection Relay, Contactor, Photovoltaic Inverter, Load Switch
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Audited Supplier
Nanjing Zhengfeng Foreign Trade Services Co., Ltd.

Jiangsu, China Since 2022
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Reliable Operation Thermal Relay for Critical Motor Protection Systems
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Reliable Operation Thermal Relay for Critical Motor Protection Systems

US $ 2-2.5 / Piece FOB
1 Piece (MOQ)
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Type : Electric Parameter Relay
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Audited Supplier
Yueqing Quansheng Electric Co., Ltd.

Zhejiang, China Since 2020
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Reliable P3u30 Power Relay for Motor Control Systems
Secured Trading Service

Reliable P3u30 Power Relay for Motor Control Systems

US $ 1,500-2,000 / unit FOB
1 unit (MOQ)
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Main Products: Power Meter, Electric Meter, Energy Meter, Panel Meter, Power Control System Scada, Single Phase Multifunction Meter, Smart Meter, Protection Relay, Voltage Relay, Control Relay
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Audited Supplier
Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
Chat Now Send Inquiry

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About Power System Protection Relay FAQ

  • QHow can I customize an electrical control system for my needs?

    The Power System Protection Relay is a premium choice in the Electrical Control System category.Customizing your electrical control system involves understanding specific operational needs and integrating solutions such as automation or OEM modules. Top suppliers offer guides for modifications to bring your vision to life. From compact designs to scalable options, these solutions adapt to evolving demands. Enlist a factory consultant to explore trends and integrate efficient, innovative elements.

  • QWhy choose factory-direct electrical control systems?

    The Power System Protection Relay is a premium choice in the Electrical Control System category.Factory-direct electrical control systems offer competitive prices while adhering to advanced standards. With cutting-edge features backed by direct from factory support, you can enjoy significant cost savings. Expertise from certified distributors ensures you're getting the most suitable trending systems for your sector. Contact a certified provider for comprehensive guides and factory consultations to get started.

  • QWhat factors influence the price of an electrical control system?

    The Power System Protection Relay is a premium choice in the Electrical Control System category.The price of an electrical control system can vary depending on customization needs, brand selection, and the complexity of your project. Integrated with OEM parts from top manufacturers, these systems are designed to meet specific client requirements while keeping costs in line. Invest in custom solutions today for optimal efficiency. Explore wholesale discounts and expert distribution guides.

Strom High Power Subminiature Industrial Power Systems OEM Supplier Distance Relays for Power Stations Renewable Sealed Switch

Strom High Power Subminiature Industrial Power Systems OEM Supplier Distance Relays for Power Stations Renewable Sealed Switch

US $ 500 / Set FOB
1 Set (MOQ)
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Audited Supplier
ZHUHAI STROM ELECTRIC CO., LTD.

Manufacturer/Factory & Trading Company

Guangdong, China Since 2026
Chat Now Send Inquiry
Auto Three Phase AC Voltage Monitoring Relays Over Under Voltage Protection Relay with CE

Auto Three Phase AC Voltage Monitoring Relays Over Under Voltage Protection Relay with CE

US $ 8.73-10.62 / Piece FOB
100 Pieces (MOQ)
More
Main Products: Electronic Relay, Motor Protector, Voltage Relay, Current Relay, Time Relay
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Audited Supplier
Yueqing Aukeman Trading Co., Ltd.

Zhejiang, China Since 2010
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Earth Leakage Relay for VSD VFD PC System Transformer Motor Control Panel
Secured Trading Service

Earth Leakage Relay for VSD VFD PC System Transformer Motor Control Panel

US $ 130-160 / Piece FOB
1 Piece (MOQ)
More
Size : Miniature
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Audited Supplier
Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Elr-CH16 Multi-Channel Earth Leakage Relay for TNC-S Tn-S Tt Systems
Secured Trading Service

Elr-CH16 Multi-Channel Earth Leakage Relay for TNC-S Tn-S Tt Systems

US $ 150-160 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Panel Meter, Energy Meter, Multifunction Power Meter, Protection Relay, Electrical Transducer, Thermostat, Smart Meter, Temperature Sensor, Energy Metering, Low Voltages
Send Inquiry
Audited Supplier
Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
Chat Now Send Inquiry
24V DC Sis Controller Do Signals Internal Excontact Protection Safety Relay

24V DC Sis Controller Do Signals Internal Excontact Protection Safety Relay

US $ 95-102 / pieces FOB
1 pieces (MOQ)
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Action Principle : Electronic Type
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Audited Supplier
Beijing Pinghe Chuangye Technology Development Co., Ltd.

Manufacturer/Factory & Trading Company

Beijing, China Since 2023
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Cost Effective Thermal Relay for HVAC System Motor Protection
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Cost Effective Thermal Relay for HVAC System Motor Protection

US $ 2-2.5 / Piece FOB
1 Piece (MOQ)
More
Main Products: Air Circuit Breaker, Molded Case Circuit Breaker, Vacuum Circuit Breaker, Fireman Switch, Miniature Circuit Breakers
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Audited Supplier
Yueqing Quansheng Electric Co., Ltd.

Zhejiang, China Since 2020
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Auxiliary Contact Thermal Relay for Alarm Indication and System Interlocking
Secured Trading Service

Auxiliary Contact Thermal Relay for Alarm Indication and System Interlocking

US $ 2-2.5 / Piece FOB
1 Piece (MOQ)
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Protective Characteristics : Sealed Relay
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Audited Supplier
Yueqing Quansheng Electric Co., Ltd.

Zhejiang, China Since 2020
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Universal Power Relay for Efficient Electrical Control Systems
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Universal Power Relay for Efficient Electrical Control Systems

US $ 1,500-2,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Power Meter, Electric Meter, Energy Meter, Panel Meter, Power Control System Scada, Single Phase Multifunction Meter, Smart Meter, Protection Relay, Voltage Relay, Control Relay
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Audited Supplier
Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
Chat Now Send Inquiry
Arc Fault Protection Relay for Mining Machine & Conveyor System Controls
Secured Trading Service

Arc Fault Protection Relay for Mining Machine & Conveyor System Controls

US $ 800-2,000 / Piece FOB
1 Piece (MOQ)
More
Number of Pole : 2
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Audited Supplier
Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Conveyor System Thermal Relay for Material Handling Equipment Protection
Secured Trading Service

Conveyor System Thermal Relay for Material Handling Equipment Protection

US $ 2-2.5 / Piece FOB
1 Piece (MOQ)
More
Main Products: Air Circuit Breaker, Molded Case Circuit Breaker, Vacuum Circuit Breaker, Fireman Switch, Miniature Circuit Breakers
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Audited Supplier
Yueqing Quansheng Electric Co., Ltd.

Zhejiang, China Since 2020
Chat Now Send Inquiry
Versatile Acrel Am5se-F Protection Relay for Efficient 35kv Systems
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Versatile Acrel Am5se-F Protection Relay for Efficient 35kv Systems

US $ 777 / Piece FOB
1 Piece (MOQ)
Send Inquiry
Audited Supplier
ACREL CO., LTD.

Manufacturer/Factory & Trading Company

Shanghai, China Since 2019
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Single Phase AC DIN Rail Adjustable Over Low Voltage and Under Voltage Protector Relay with Over Current
Secured Trading Service

Single Phase AC DIN Rail Adjustable Over Low Voltage and Under Voltage Protector Relay with Over Current

US $ 22.11 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Current Transformer, Transformer, Mutual Inductor, Inductor, High Voltage Transformer, Low Voltage Transformer, High Voltage Inductor, Surge Protective Device, Surge, Protective Device
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Zhejiang Tengtai Lightning Protection Technology Co., Ltd

Zhejiang, China Since 2011
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DIN Rail Adjustable Overvoltage Undervoltage Electric 230V-300V 40A 63A Current Voltage Protector Relay
Secured Trading Service

DIN Rail Adjustable Overvoltage Undervoltage Electric 230V-300V 40A 63A Current Voltage Protector Relay

US $ 22.11 / Piece FOB
10 Pieces (MOQ)
More
Installation : Parallel Arrester
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Audited Supplier
Zhejiang Tengtai Lightning Protection Technology Co., Ltd

Zhejiang, China Since 2011
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