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The KW350 DIN rail mounted meter combines high performance with ease of integration to provide a cost-effective power and energy monitoring solution. The meter can monitor both uni-directional and bi-directional current and features a built-in LCD display designed to simplify setup and local reading of all measurements of meter data. The user interface enables access to configure the meter set-up options. Many of the advanced meter functions connect with the Utility Software which requires an RS-485 to USB converter to connect to a PC or laptop - See Accessory Odering Grid. The meter supports user selectable Modbus-RTU and BACnet MS/TP communication protocols, and pulse output communication which allows seamless integration with data acquisition systems. Meters also feature a built-in relay that can be used to trigger an alarm. The KW350 provides demand measurement of Current, Active Power, Reactive Power and Apparent Power. It also provides demand forecasting as well as the peak demand. Meters can record the time and event regarding important parameter events such as the run time of the meter and alarm functions. The Auto Phase-check function automatically checks for common wiring mistakes, such as current transformer direction, voltage, and current phase alignment. The tamper-proof design is approved for revenue applications. Model selection is determined by which style of current transformer is required- 333mV or Rogowski coil (see ordering grid). Current Transformers are sold separately as shown on the Hinged, Split Core, Solid Core, or Rogowski Coils CT product data sheets.

Applications: Sub-Metering Electrical Panel, Equipment Load Monitoring, Industrial Applications, Predicted Maintenance, Renewable Energy, Overhead Cost Reduction, “NET ZERO” Buildings, LEED Buildings, Green Buildings, and Refrigeration

1) Those that require auxiliary power for their power supply. This setup is ideal in situations where the power needs to be monitored as an outage occurs, or in situations where the voltage is low.

2) There are meters that power themselves from the same voltage lines they are designed to measure. This is ideal in situations where the power is generally stable, and where significant sags in the voltage supply are not expected (or can be ignored).

There are various power supply options available: the standard power supply option 100-415Vac or 100-300Vdc and the low voltage power supply option (20-60Vdc).

Single-phase power is used in more than 99% of homes and small businesses. It is more than sufficient to supply the power needed and is adequate for running motors up to 5 horsepower. Three-phase power is more common in large businesses as well as industrial manufacturing around the world. It is also becoming more popular in power-hungry, high-density data centers.

There is not a safe way to confirm your power phases without being trained in electrical handling. For this purpose we recommend everyone who is not certain to contact a local electrician to confirm.