Best Single Phase Relay Tester

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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Siemens 14DUE32AF Heavy Duty Motor Starter, Solid State Overload, Auto/Manual Reset, Open Type, Standard Width Enclosure, 3 Phase, 3 Pole, 1 NEMA Size, 10-40A Amp Range, A1 Frame Size, 120 Separate Control 60Hz Coil Voltage

  • Price For: Each Standards: UL, CSA Enclosure NEMA Rating: No Enclosure Starter Type: NEMA Style Hz: 50/60 Item: NEMA Magnetic Motor Starter Auxiliary Contact Form: 1NO Number of Poles: 3 Overload Relay Amp Setting: 5.50 to 22A Action: Nonreversing NEMA Size: 1 Width: 3.5" HP @ 3 Phase - 575V: 10 HP @ 3 Phase - 480V: 10 HP @ 3 Phase - 240V: 3.
  • HP @ 3 Phase - 208V: 3 Height: 7.44" Depth: 3.75" Coil Volts: 120VAC Amps AC: 27 Country of Origin (subject to change): Mexico.
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ATO Phase Voltage Monitoring Sequence Relay 1 Phase Voltage Protection Relay Under Over Voltage with 1 CO + 1 NC Contacts AC/DC 24-48V

  • 【Measuring Circuit】Phase sequence protection relay is compatible with AC and DC supply, the rated voltage is AC/DC 24-48V.
  • 【High-quality Product】LCD display indicating voltage, operation and fault status, adjustable reset mode: automatic/manual/automatic with power-on delay reset, fault recording for the lately 3 faults.
  • 【Mutiple Functions】Adjustable overvoltage and undervoltage threshold, independent adjustable delay time for over-voltage, under-voltage.
  • 【Output Contacts】Monitoring relay with 1 CO + 1 NC contacts, and the capacity is 6A, 250V AC (resistive load).
  • 【Wide Applications】Voltage monitoring sequence relay can be applied in equipment or devices from undervoltage and overvoltage in the applications like air compressors, electric motors, pumps, fans, air-conditioning system, blowers, elevators, cranes, refrigeration equipment, laser equipment, industrial control system, etc..
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Three Phase Voltage Monitoring Relay, Three Phase Voltage Small Monitoring Relay Phase Sequence Relay for Mobile Device Connection Control for Mobile Device(M265)

  • 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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Dakota Digital PAC-2800BT Electronic Fan Controller 70 Amp with Bluetooth Control

  • The PAC-2800BT was designed for the ultimate in flexibility and to be a simple add-on in any application using an electric fan. Included is a 70amp relay, enough for even the most power hungry of cooling fans. Fully programmable, the PAC-2800BT will work with your existing water temp gauge, operating from the temperature sending unit already installed. A dedicated sending unit can be installed for applications without a water temp gauge..
  • ompatible with single fan, dual fan or single two-speed fan applications.User-settable on and off temperatures.** 70A relay included, additional relay is available for purchase separately.
  • RLY-1 (0-30 amp) or RLY-3 (0-70 amp). The use of a second relay RLY-1 (0-30 amp) or RLY-3 (0-70 amp) will be required for dual fan or two speed fan operation (not included, sold separately)..
  • User-settable on and off temperatures. The PAC-2800BT features fully programmable "fan on" and "fan off" temperatures to suit any application or personal preferences. The PAC-2800BT offers a full digital LED readout for displaying temperature readings and maintaining simple installation. A second relay is required for dual fan or two speed fan operation, sold separately..
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Extech PQ3350-1-NIST Power Quality Meter with NIST

  • Data logging of single and 3-phase/3-wire or 3-phase/4-wire systems (up to 52,428 single phase readings or 17,476 3-phase readings).
  • Flexible clamp probes can be used for wrapping around bus bars and wire bundles.
  • Large backlighting LCD displays up to 35 parameters in one screen.
  • Clamp-on True RMS power measurements with on-screen Harmonics display.
  • Simultaneous display of Harmonics and Waveform.
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AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board

  • 【30VDC 250VAC Load】 Equiped with high-current relay, AC250V 10A.
  • DC30V 10A, each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
  • 【High Level Trigger】The relay module is triggered by high level signal, which can be input from microcontroller IO..
  • 【 3V/3.3V power relay module】- This Relay Board provides a single relay that can be controlled by any 3V/3.3V digital input from your microcontroller IO..
  • 【Wide Application】- These 3v relay board works well with ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4/3.3V /NodeMCU/ ESP8266 module etc..
  • 【Long Life】 - Fast response time less than 20ms and long lifetime up to 100,000 times snap action with diode freewheel protection..
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Siemens 3UG4511-1AP20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 1 CO Contacts, Delay Time, 420-690 Line Supply Voltage

  • 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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ATO 1 hp VFD, 4A 0.75kW 120V Input 220V Output, Single Phase to 1phase/3phase Variable Frequency Drive, for AC Motor Speed Control

  • ATO 1 hp 110v VFD, 0.75 kW single phase 110v/120v input, single phase or three phase 220v output variable frequency drive. Running your 1 phase/3 phase motors on 120 volt supply via ATO VFD.
  • Input voltage: 1 phase 120V AC ±15%, Input frequency: 50Hz/60Hz, Output voltage: 1 phase or 3 phase 220V AC ±15%, Output frequency: 0.00~400.00Hz.
  • 【APPLICATION】: ATO 110V Variable frequency drive can be widely applied to drive the AC motor, such as fans, pumps, power tools, etc..
  • 【TIPS】: Choose a VFD base on motor rated current: VFD output current ≥ motor rated current.
  • 【CUSTOMER FIRST】If you are not sure about the size or have any issue about the product or service, please don't hesitate to email us. We will answer you within 12h.
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IRHAPSODY 12 V DC 200 Amp 4 Pin Heavy Duty Relay/Split Charge Relay Switch, 4 Terminal Relay

  • coil resistance: 80 ohms. It is more reliable than 2.4W (60 ohms) and 4.8W (30 ohms) relays on the market.
  • Nominal coil voltage: 12V, Pickup voltage: 8V, Dropout voltage: 1.2V, Maximum applied voltage: 14V.
  • Heavy duty 12 volt 4 Pin SPST (Single Pole Single Throw) relay.
  • Large capacity: 200a high current carrying capacity, heavy duty make/break relay.
  • Ideal for split charging or any vehicle needing a high power relay.
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