Relay protection and automation devices · Protection Relay · Our Products

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21 products total
Category: Protection Relay
NJXB5 Low Voltage Line Protector

Protection Relay

NJXB5 Low Voltage Line Protector

Relays and protective relays are mainly applicable to the NJXB5 series low-voltage line protector (hereinafter referred to as the protector), which is a multifunctional comprehensive line protector. It is applicable to AC frequency of 50Hz/60Hz, rated insulation voltage up to AC690V or below, and

NJBK5 Motor Protector

Protection Relay

NJBK5 Motor Protector

Relays and protective relays are mainly applicable to the NJBK5 series motor protectors (hereinafter referred to as protectors), which is a multi-functional comprehensive motor protector. It is applicable to AC frequency 50Hz/60Hz, rated insulation voltage up to AC690V or below, rated

NJXB1 Low Voltage Line Protector

Protection Relay

NJXB1 Low Voltage Line Protector

Relays, protective relays are mainly applicable to the NJXB1 series low-voltage line protector (hereinafter referred to as the protector), which is a multifunctional integrated line protector. It is applicable to AC frequency of 50Hz, rated insulation voltage up to AC690V or below, and rated operating current

NJBK8 Motor Protector

Protection Relay

NJBK8 Motor Protector

Relays, protective relays products are mainly applicable to the NJBK8 series motor protector (hereinafter referred to as the protector), a multifunctional comprehensive motor protector. Applicable to AC frequency 50Hz/60Hz, rated insulation voltage up to AC690V or below, rated

NJYB2 Voltage Protection Relay

Protection Relay

NJYB2 Voltage Protection Relay

Relays, protection relays are mainly applicable to the NJYB2 series voltage protection relays (hereinafter referred to as relays), which are mainly used in AC frequency 50Hz, rated control circuit power supply voltage up to AC415V (three-phase three-wire) control circuits as phase failure, phase

NJBK2 Series Motor Protector

Protection Relay

NJBK2 Series Motor Protector

Relays, protective relays are mainly applicable to (hereinafter referred to as protector), applicable to AC 50Hz, rated insulation voltage below 690V, rated working current 1A~800A of long-term or intermittent AC motors for overload, blockage, phase failure

NJBK6 Series Motor Protector

Protection Relay

NJBK6 Series Motor Protector

Relays, protective relays are mainly applicable to the NJBK6-36 series motor protectors, suitable for AC motors with an AC frequency of 50Hz, rated insulation voltage below 690V, and rated operating current of 1A~36A for long-term or intermittent operation, to provide overload protection.

NJBK7 Motor Protector

Protection Relay

NJBK7 Motor Protector

Relays, protective relays products are mainly applicable to the NJBK7-800 series motor protectors (hereinafter referred to as protectors), applicable to AC frequency 50Hz, rated insulation voltage up to AC690V or below, and long-term operation with rated working current 1A-800A

NJYB3 Voltage Protection Relay

Protection Relay

NJYB3 Voltage Protection Relay

Relays, protective relays are mainly applicable to circuits with AC 50Hz, three-phase three-wire 380V, three-phase four-wire 220V, as overvoltage protection, undervoltage protection, phase failure protection, phase sequence protection, three-phase imbalance protection, PTC temperature protection

JD-5E Motor Protector

Protection Relay

JD-5E Motor Protector

Relays, protective relays are mainly applicable for AC 50Hz, rated insulation voltage AC690V or below, and rated operating current 1A~400A for long-term or intermittent operation of AC motors for overload and phase failure protection. The protector is generally used with AC

JD-5 Motor Protector

Protection Relay

JD-5 Motor Protector

Relays, protective relays are mainly applicable to AC 50Hz, rated insulation voltage AC690V or below, rated operating current 0.5A~400A of long-term or intermittent operation of AC motors for overload and phase failure protection. The protector is generally used with

JD-8 Motor Protector

Protection Relay

JD-8 Motor Protector

Relays, protective relays are mainly used in AC power systems with a frequency of 50Hz and an rated insulation voltage of 690V or less to protect low-voltage three-phase AC induction motors against overload, phase failure, and other faults. The protector is usually used with the contactor in the AC motor circuit.

NJBK1 Series Motor Protector

Protection Relay

NJBK1 Series Motor Protector

Relays, protective relays are mainly applicable to (hereinafter referred to as protector), applicable to AC 50Hz, rated insulation voltage up to 690V or below, long-term or intermittent working AC motors with rated operating current 1A~400A for overload, phase loss, three-phase

XJ3 Series Phase Failure and Phase Sequence Protection Relay

Protection Relay

XJ3 Series Phase Failure and Phase Sequence Protection Relay

Relays, protective relays are mainly applicable for overvoltage, undervoltage, phase loss protection in three-phase AC circuits, and for phase sequence protection in non-reversible drive equipment. They have the characteristics of reliable performance, wide applicability, and convenient use.

NJB1-X Relay (Phase Sequence, Phase Failure, Three-Phase Unbalance Protection)

Protection Relay

NJB1-X Relay (Phase Sequence, Phase Failure, Three-Phase Unbalance Protection)

Relays, protection relays are mainly applicable to NJB1-X phase sequence, phase loss relays, and are used in AC voltage 380V~480V, frequency 50Hz control circuits as phase sequence, phase loss and imbalance protection devices, to connect or disconnect the circuit, cannot monitor

NJB1-X1 Relay (Phase Sequence, Phase Failure Protection)

Protection Relay

NJB1-X1 Relay (Phase Sequence, Phase Failure Protection)

Relay, protective relay products are mainly applicable to NJB1-X1 voltage protection relay, which is applicable to AC voltage 200V~500V, frequency 50Hz control circuits as phase sequence and phase loss protection devices, connect or disconnect the circuit, cannot monitor motor negative

NJB1-Y Single-phase Voltage Relay

Protection Relay

NJB1-Y Single-phase Voltage Relay

Relays, protective relays products are mainly applicable to NJB1-Y series single-phase voltage relays, which are mainly used in AC frequency 50Hz, rated control power supply voltage up to 220V and DC rated control power supply voltage up to 24V control circuits, for single-phase AC/DC voltage

ZCT Series Zero Sequence Current Transformer

Protection Relay

ZCT Series Zero Sequence Current Transformer

Relays, protective relays are mainly applicable to (hereinafter referred to as current transformers), applicable to AC 50Hz, rated insulation voltage up to 690V or below, working current up to 200A or below (ZCT-50 up to 100A) for long-term or intermittent operation of electric motors

NJBK10 Motor Protector

Protection Relay

NJBK10 Motor Protector

Relays, protective relays are mainly applicable to the NJBK10 series motor protectors (hereinafter referred to as protectors), suitable for AC 50HZ, rated insulation voltage up to 690V or below, rated working current 1A~200A for long-term or intermittent operation

NJL1 Series Residual Current Relay

Protection Relay

NJL1 Series Residual Current Relay

Relays, protective relays are mainly used in combination with AC contactors or circuit breakers to form leakage protection devices, and their main function is to provide indirect contact protection against life-threatening electric shocks. They are suitable for low-voltage distribution systems with directly grounded neutral points (380V/220V).

NJL2 Leakage Current Protector

Protection Relay

NJL2 Leakage Current Protector

Relay, protection relay products are mainly applicable to residual current relays, molded case circuit breakers integrated, and have a reclosing function. It is suitable for low-voltage power grids with directly grounded neutral lines in three-phase four-wire systems, and can protect the protected line or electrical equipment. This product does not

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