Reviews Three phase Electronic Meters

944 / 944 Turbo Shirt

Cross Needle and Digital SWR/WATT Meters : Lighted Cross-Needle and digital meters lets you accurately read SWR, forward and reflected power at a....
Backlit LCD Display : An easy-to-read backlit LCD displays SWR, forward/reflected power, frequency, antenna 1/2, L/C tuner values, on/off indicators....
Remote Control Port : Plug in the MFJ-993RC remote control and put your tuner at your antenna or elsewhere and control it remotely. The MFJ-993....
Tune Any Antenna : You can tune any antenna — dipoles, verticals, beams, phased arrays, inverted vees, quads, random wires, mobile antennas, compact....

120/240V Single Phase Panel Mount Surge Protective Device, 4-Mode Protection, 50kA Max Surge Current Rating, NEMA 1 Enclosure, UL 1449 4th Edition....
Type 2 Single Phase Surge Panel with 4-Mode Protection.
Real-time diagnostic visual indicator shows power and suppression status for each protected phase.
Standard J-Box enclosure with pre-punched standard knock-outs can be easily surface mounted in typical frame construction.
Features a low VPR to ensure protection of sensitive electronic devices including LCD TVs and computers.

...ital meter.（Voltage, current, active power, electrical energy, frequency, power factor）No fire risk and electric shock during installation and operation due to low DC voltage(up to 50V) compared with at least 200V from string inverters.
Regarding the heating problem of the inverter:this is normal phenomenon. All electronic devices generate heat during operation. The inverter uses aluminum alloy material. Metal can conduct heat better. The inverter also has over-temperature protection if the temperature is high. Then the inverter will automatically reduce the working output efficiency. Or stop working. After cooling down, restart. It is recommended to install the inverter in a ventilated, dry and cool place..

ATO 110v vfd, single phase 110v/120v input, single phase or three phase 220v output, achieve to run 220v AC motor on single phase 110v/120v power supply.
【Voltage& Frequency】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 7.5 hp 5.5kW variable frequency drive Can be widely applied to drive the AC motor, such as fans, pumps, power tools, etc.
【TIPS】 To protect the variable frequency drive and Motor, you need an upstream protection, add a line-choke upstream the VFD, this will reduce the current transients seen by the input of the VFD.
【CUSTOMER FIRST】If you have no experience in driving a VFD, be sure to refer to the instructions before operating a VFD.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.

POWER MEASUREMENT & CONTROL: Shelly 3EM gives owners enhanced safety and everyday control over appliances or machinery, along with the ability to make smart decisions about electrical consumption. The 3EM is a Wi-Fi energy measurement device, monitoring up to three phases between 110 and 240v per line..
MONOPHASE SYSTEMS: Shelly 3EM can calculate 2-way consumption: produced and used energy for each of the three phases. The device can be configured to measure three separate points of a mono-phase electrical system and measure each of them separately..
CONTACTOR CONTROL: Shelly 3EM has an integrated 10A relay output for contactor control..
NO HUB REQUIRED: You can control Shelly 3EM directly, no hub required. It is compatible with any Wi-Fi router. Or if you prefer you can connect it to your home automation platform..
OVERCONSUMPTION PROTECTION: Shelly 3EM can automatically notify and/or switch off the circuit if consumption or energy reaches the preset limit..

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.

Dynamic phase loss, static phase loss protection: refers to the phase failure of any phase when the protected device is in the running state or non-operating state. The indicator light is in the form of red light and priority.
Wrong phase protection: A protection measure to prevent the phase sequence of L1, L2, L3 three-phase AC power supply from being connected incorrectly. Instant action. The indicator light is in the form of yellow light..
Voltage Unbalance Protection: Refers to a voltage imbalance that will affect the safe operation of the device. When the voltage imbalance rate is higher than 8%. The form of the indicator light is: the lack of phase red light is on, and priority..
Delay protection: When there is a fault, the monitor will delay after 1~2 seconds, and the relay will release..
The protection function of the monitor is not affected by the current of the line or load, the inrush current, the unbalanced current and the nature of the load. Long-term work with full performance and full climate. Power consumption is no more than 2W..

Dynamic phase loss, static phase loss protection: refers to the phase failure of any phase when the protected device is in the running state or non-operating state. The indicator light is in the form of red light and priority.
Wrong phase protection: A protection measure to prevent the phase sequence of L1, L2, L3 three-phase AC power supply from being connected incorrectly. Instant action. The indicator light is in the form of yellow light..
Voltage Unbalance Protection: Refers to a voltage imbalance that will affect the safe operation of the device. When the voltage imbalance rate is higher than 8%. The form of the indicator light is: the lack of phase red light is on, and priority..
Delay protection: When there is a fault, the monitor will delay after 1~2 seconds, and the relay will release..
The protection function of the monitor is not affected by the current of the line or load, the inrush current, the unbalanced current and the nature of the load. Long-term work with full performance and full climate. Power consumption is no more than 2W..