ReviewsThree Phase Relay

Siemens 3UG4512-1BR20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 2 CO Contacts, Delay Time, 160-690 Line Supply Voltage

Convenient Monitoring: The voltage relay can monitor its own operating voltage (true rms measurement)..
High Accuracy: The voltage relay has 8 adjustable rated voltages, and the voltage measurement accuracy is less than 1%..
Application: Equipment protection and control (tower cranes, elevators, agricultural equipment, refrigerated trucks).
LED Indicator: The working status of the voltage control relay is indicated by the LED indicator..
Small Size and Easy to Install: The voltage protection relay is ultra-small and can be mounted on a 35mm DIN rail..

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Garosa Voltage Monitoring Relay, Overvoltage Undervoltage Monitoring Sequence Protector with LED Lights, 480VAC

【Item Main Purpose】This phase sequence protector is mainly used for various fault detection of 3-phase voltage.not easy to be damaged, can be used for a long time without worry..
【5 Indicators To Indicate】Normal, phase loss (voltage three-phase unbalance), reverse phase, overvoltage and undervoltage.We fully guarantee the quality of our products.Please rest assured to buy our items..
【Full-Featured】It integrates three-phase voltage display, over-voltage protection, under-voltage protection, phase-gap protection (phase-break protection), three-phase voltage unbalance protection, phase sequence protection (phase-staggered protection) and acoustooptic alarm..
【Installation Method】The base of the protector adopts a rail type with two screw holes, which can be directly installed separately or mounted on the HT35 rail..
【Application Scenarios】This phase sequence protector is widely used in air compressor, motor distribution box, pump, central air conditioning units, power distribution cabinet, crane, etc.Safety using. If you still have any questions, please send us emails, we're available 24 hours..

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Siemens 3UG4631-1AW30 Monitoring Relay, Single Phase Voltage Monitoring, Screw Terminal, 1 CO Contacts, 0.1-60VAC/DC Measuring Range, 0.1-30V Hysteresis, 0-20s Delay Time, 24-240VAC/DC Auxiliary Voltage

3 INDICATORS-The protector base adopts 35mm rail type or device type, and has two screw hole structures inside, which can be directly installed separately or HT35 rail. Indicated by three indicators: normal, phase loss(voltage three-phase unbalance), reverse phase.
PHASE LOSS PROTECTION-Phase loss protection means that when the protected line is in the running state or non-operating state, any phase failure occurs, and the delay is 2S.
REVERSE PHASE PROTECTION-Reverse phase protection, a protection measure to prevent L1, L2, L3 three-phase AC phase sequence from being connected incorrectly, delay 2S action.
VOLTAGE IMBALANCE PROTECTION-Voltage imbalance protection, which refers to a protective measure that will affect the safe operation of the line due to three-phase voltage imbalance.
IDEAL FOR-Widely used in air compressors, electric motors, distribution boxes, water pumps, oil pumps, central air conditioning units, etc.

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NR2-93 Thermal Overload Relay Thermal Protector 50-60hz Overload Protection(37-50A)

Suitable for using in power system with rated isolation voltage up to 690V, circuit of 50-60hz.
Can be used as overload protection of your long term or indirect long term service motor.
Used for protecting the phase break when the electric motor is overload.
The relay has different mechanism and temperature compensation.
With phase break protection, manual and automatic reset, temperature compensation, trip indication, test button and stop button.

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Digital Phase Indicator , Akozon SP8030 Digital Phase Rotation Indicator LED Buzzer Phase Sequence Meter 200 ith Bag

It is durable, reliable and light-weight handheld device, which is necessary tool for those who often install, repair or maintain three-phase system or motor..
Without a need to link testing line, the motor rotation direction can be decided by placing this indicator above the motor and aligning it with motor drive shaft..
Used to test phase sequence input of three-phase voltage, to indicate phase line L1, L2 and L3..
PM5900 Motor and Phase Rotation Indicator is used to test magnetic field direction of three-phase system, phase rotation, motor rotation direction..
It also supports non-contact type magnetic field rotation direction test (motor rotation direction test)..

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Phase Sequence Meter, 60V ~ 600V AC 3 Phase Sequence Rotation Tester, with 5 LED Lights, for General Measuring Tool

It is durable, reliable and light-weight handheld device, which is necessary tool for those who often install, repair or maintain three-phase system or motor..
Used to test phase sequence input of three-phase voltage, to indicate phase line L1, L2 and L3..
PM5900 Motor and Phase Rotation Indicator is used to test magnetic field direction of three-phase system, phase rotation, motor rotation direction..
Without a need to link testing line, the motor rotation direction can be decided by placing this indicator above the motor and aligning it with motor drive shaft..
It also supports non-contact type magnetic field rotation direction test (motor rotation direction test)..

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CR Magnetics CR2550-A Low Cost Remote Current Indicator with Amber LED, 1.5 AAC Turn-On Point

Low cost for high volume OEM installations.
Electrical isolation between circuits, output relay rated up to 20 Amps.
LED trip status indicator, dead band prevents relay chatter.
Calibrated dial option available, external current transformers available.
Applications: monitor electrical heater elements, sense motor over/under loads, detect lamp burn-out, indicate phase loss.
Variable trip point and time delay, monitors currents from 10 mA to 60 AC amps.

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Omron K8DS-PH1 Phase Monitoring Relay

The base of the protector adopts a rail type with two screw holes, which can be directly installed separately or mounted on the HT35 rail..
Use 5 indicators to indicate: normal, phase loss (voltage three-phase unbalance), reverse phase, overvoltage and undervoltage..
Phase loss protection means that when the protected line is in the running state or non-operating state, any phase failure occurs, and the delay is 2S..
Overvoltage protection means that the voltage of the protected line is higher than the set value, and the delay is 3~8S, and the recovery is 6~20VAC..
Reverse phase protection, a protection measure to prevent L1, L2, L3 three-phase AC phase sequence from being connected incorrectly, delay 2S action..

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NEW TeSys LRD thermal overload relays LR-D32 LRD32 23-32A Class 10A

Working Range: Suitable for using in power system with rated isolation voltage up to 690V, circuit of 50-60hz.
Longer Service: Can be used as overload protection of your long term or indirect long term service motor.
Protection Function: Used for protecting the phase break when the electric motor is overload.
Temperature Compension: The relay has different mechanism and temperature compensation.
Multifunctions: With phase break protection, manual and automatic reset, temperature compensation, trip indication, test button and stop button.

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1Pcs Photocell Cap,TwistLock Photocell Shorting Cap,Photo Control Sensor Receptacle with Surge Protection,Dusk to Dawn 3 Prong Bypass Cap

◆ Function: phase sequence detection, live line check, simple performance check, live cable identification, phase loss assessment, search for cable break position, detection of DC line break point, line maintenance.
◆ Non-Contact Inspection: Non-contact inductive measurement of the terminal type without opening the cable, without touching the exposed high voltage fire cable, with the three highly insulated super inductive terminals inserted directly into the cable insulation skin 3-phase live detection for safe and quick productivity..
◆ Positive and Negative Phase: With the LED display, dynamic sound and light perfectly show the positive or negative phase of the phase sequence of the three-phase power supply, which can be seen at a glance..
◆ Magnetic base: The base plate of the instrument is equipped with 4 magnets that can stand a quality of 800 g. They can be attached to the metal case of the device during the test, and it is convenient and convenient to use..
◆ Wide Voltage Test: This phase meter can detect three-phase voltages from 70V to 1000V and has excellent performance..

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Phase Monitoring Relays JVR800-2 Under Over Voltage Protector, Three-Phase Voltage Monitoring Sequence Protection Relay with

This monitoring relay can monitor own working voltage..
8 kinds of rated voltages are adjustable, can apply to voltages in all regions of the world.
The working status of the relay is indicated by the LED indicator.
Ultra-small size and it is easy to install..
It is applied to mobile device connection control, causing accidents in equipment protection against reverse operation, normal/emergency power switch, preventing phase failure of power load..

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