Home > Electrical Equipment & Supplies > Industrial Controls > Relays >

Numerical Relay Protection

Fair Trading Service

Report fraud supplier Report IPR Products

Haven't found right suppliers
Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
And this service is free of charge.
we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!

Submit Buying Request

Total 4119 products for numerical relay protection Manufacture & Suppliers

Reliable Three Phase Voltage Monitoring Relay of three-phase mains phase failure DIN rail mount

...Relay of three-phase mains phase failure DIN rail mount The voltage and phase monitoring relay is the Device protect the motor for phase dead protection , low voltage protection , high voltage protection --W...

Wenzhou Ginri Power Automation Co., Ltd.
Zhejiang,China

Active Member

Add to cart
(3RU1136) Phase Power Failure Reverse Protective Relay Electronic relay

... up to 660V,current up to 630A.used as protecting AC three-phase motor against ovrtload and phase losing. It has functions of phase-losing protecting temperature campe,trip indication,it can passively and au...

Yueqing Kampa Electric Co., Ltd.
China

Active Member

Add to cart
Ultraportable Protective Relay Test System Lightweight IEC 61010-1

...Relay Test System Model: RELAYSTAR-S60 The RELAYSTAR-S60 is ultra-portable protection relay test system that delivers performance verification testing of electromechanical, solid-state and microprocessor-bas...

HAOMAI ELECTRIC TEST EQUIPMENT CO.,LTD
China

Active Member

Add to cart
Sealed12V50A Electrical Control Relay Overheat Protection Function Contact Load

Sealed12V50A Electrical Control Relay Overheat Protection Function Contact Load Safety Protection 12V 50A Relay NB902-12S-S-A Overheat Protection Function 12V 50A Relay Introduce: A relay is an electrical contr...

Shenzhen Ketai Electronic Technology Co., Ltd.
China

Active Member

Add to cart
Pumps Three Phase Voltage Monitoring Relay , JVM-A Phase Detection Relay 460VAC

...Relay , AVM-N Phase Detection Relay 460VAC Phase sequence protector is a multi-function three-phase power system or three-phase power equipment monitoring and protection equipment. The phase sequence protect...

Wenzhou Ginri Power Automation Co., Ltd.
Zhejiang,China

Verified Supplier

Add to cart
Reliable Three Phase Voltage Monitoring Relay of three-phase mains phase failure DIN rail mount

...Relay of three-phase mains phase failure DIN rail mount The voltage and phase monitoring relay is the Device protect the motor for phase dead protection , low voltage protection , high voltage protection --W...

Wenzhou Ginri Power Automation Co., Ltd.
Zhejiang,China

Verified Supplier

Add to cart
Ultraportable Protective Relay Test System Lightweight IEC 61010-1

...Relay Test System Model: RELAYSTAR-S60 The RELAYSTAR-S60 is ultra-portable protection relay test system that delivers performance verification testing of electromechanical, solid-state and microprocessor-bas...

HAOMAI ELECTRIC TEST EQUIPMENT CO.,LTD
China

Verified Supplier

Add to cart
Sealed12V50A Electrical Control Relay Overheat Protection Function Contact Load

Sealed12V50A Electrical Control Relay Overheat Protection Function Contact Load Safety Protection 12V 50A Relay NB902-12S-S-A Overheat Protection Function 12V 50A Relay Introduce: A relay is an electrical contr...

Shenzhen Ketai Electronic Technology Co., Ltd.
China

Verified Supplier

Add to cart
GTH40 UL Magnetic Thermal Overload Relay Electrical Protective Relays

...Relay Electrical Protective Relays UKH series thermal overload relays apply to circuit of AC 50Hz or 60Hz, rated voltage to below 660V and rated current . 1A-800A for AC motor overload and open-phase protect...

Zhejiang KRIPAL Electric Co., Ltd.
Zhejiang,China

Verified Supplier

Add to cart
Electromagnetic Relay Motor Protection Thermal Overload Relay UL Approvals

... and rated current . 1A-800A for AC motor overload and open-phase protection during long time or intermittent long time service, which can also protect 3-phase serious imbalance and long starting time of mot...

Zhejiang KRIPAL Electric Co., Ltd.
Zhejiang,China

Verified Supplier

Add to cart
RCS-974 Transformer Protection Auxiliary Relay oil and winding temperature gas, pressure

...Protection Auxiliary Relay oil and winding temperature gas, pressure Pole disagreement protection The RCS-974 provides auxiliary protection for transformers including mechanical protection, pole disagreement...

OUTER ELECTRONIC TECHNOLOGY (HK) LIMITED
Guangdong,China

Verified Supplier

Add to cart
PCS-985 Generator Transformer Unit Protection Relay 87g Differential protection

... the complete main and backup protection of generator-transformer units which usually comprises generator, main transformer, auxiliary transformer and exciter or excitation transformer.It supports connection...

OUTER ELECTRONIC TECHNOLOGY (HK) LIMITED
Guangdong,China

Verified Supplier

Add to cart
PA66 Aluminum Integrated Protection Relay WISCOM WDZ-440 For Low Voltage

...protection relay , WDZ-430EX motor integrated protection and measure device Wdz-400 series includes the following models: wdz-410 line integrated Protection measurement and control device wdz-430 motor integ...

OUTER ELECTRONIC TECHNOLOGY (HK) LIMITED
Guangdong,China

Verified Supplier

Add to cart
Phase Sequence Phase Failure Protection Relay Over Under Voltage For Water Pump 3 Phase 380-400V

... to provide overvoltage, undervoltage and phase failure protection in three-phase AC circuits and phase sequence protection in irreversible transmission devices and features reliable performance, wide applic...

Wuxi Fenigal Science & Technology Co., Ltd.
Jiangsu,China

Verified Supplier

Add to cart
Single Channel Relay Test Set / Protection Relay Test Equipment One AC/DC Current

Protection Relay Test Set , Single Channel Relay Protector Tester , One AC Source & One DC Source I. Product description JBY-II Single Channel Relay Protector Tester is one portable tester with built-in one AC ...

WUHAN FANKE HAIWO HIGH VOLTAGE TECHNOLOGY CO.,LTD.
Hubei,China

Active Member

Add to cart
Single Channel Relay Test Set / Protection Relay Test Equipment One AC/DC Current

Protection Relay Test Set , Single Channel Relay Protector Tester , One AC Source & One DC Source I. Product description JBY-II Single Channel Relay Protector Tester is one portable tester with built-in one AC ...

WUHAN FANKE HAIWO HIGH VOLTAGE TECHNOLOGY CO.,LTD.
Hubei,China

Verified Supplier

Add to cart
3AXD50000199488 ABB Industrial Control Module / Protective Relay

...Protective Relay Product Description The 3AXD50000199488 is an industrial-grade electrical control or protection module designed for power systems, motor control, or automation applications. This module may ...

Xiamen Online Union Technology Co., Ltd
China

Verified Supplier

Add to cart
Universal Protection Relay Testing Complying IEC61850 SV & GOOSE

Universal Relay Test Set All-in-one Complying IEC61850 SV & GOOSE Product Advantage �� Digital signal complying IEC61850-9-1 / IEC61850-9-2 protocols. �� Synchronize with GPS,IRIG-B. �� Suitable testing for all ki...

Kingsine Electric Automation Co., Ltd.
Guangdong

Verified Supplier

Add to cart
Lightweight Intelligent IEC61850 K2066i Relay Test Set

...relay test set Description Of Relay Testing Device Complied IEC61850 Universal protection relay test function, With fully function of Manual test, state sequencer,Harmonic,recloser test , Line differential, ...

Kingsine Electric Automation Co., Ltd.
Guangdong

Verified Supplier

Add to cart
Overcurrent IEC61850 Relay Test System IEDs Analyzer KINGSINE KF900A

... differential, Distance, Mutation distance, Overcurrent, Zero sequencer, Ramping, Power direction, Differential rate, Differential Harmonic, Overexcitation protection, Synchronize, Reserve power supply test,...

Kingsine Electric Automation Co., Ltd.
Guangdong

Verified Supplier

Add to cart