The Victron Energy VM-3P75CT is a high-speed energy meter designed to measure power and energy in both single-phase and three-phase AC applications. It can be used at a distribution panel or to measure the output of compatible PV inverters, AC generators, inverters, and inverter/chargers. 

The REL200300100 uses external clamp-type current transformers with a rated current of 75A and provides both VE.Can and Ethernet communication. With a fast 100ms refresh rate, the VM-3P75CT can transmit RMS power measurements for each phase to compatible Victron systems for responsive monitoring of power consumption, grid import, and grid feed-in. 

Key Technology

• Single-Phase & Three-Phase Energy Measurement
  Designed to measure AC power and energy in compatible single-phase and three-phase installations, providing flexible monitoring across a range of energy-system configurations.

• 75A Current Transformers
  Uses clamp-type current transformers with a rated current of 75A, allowing current measurement without requiring the existing conductors to be disconnected for insertion through a conventional meter. 

• 100ms High-Speed Refresh Rate
  Transmits measurement data at a 100ms refresh rate, enabling responsive monitoring of changing AC power conditions.

• VE.Can Communication
  Provides two RJ45 VE.Can connectors for integration with compatible Victron GX and energy-management systems.

• Ethernet with Modbus UDP
  Includes an RJ45 Ethernet communication interface supporting Modbus UDP for compatible network-based monitoring and integration. 

• Plug & Play Grid Meter Setup
  Designed to operate as a grid meter out of the box for most compatible systems. VictronConnect configuration is required when changing its role or when manual IP configuration is preferred instead of DHCP. 

• Multiple Configurable Meter Roles
  Can be configured through VictronConnect for use as a Grid Meter, PV Inverter Meter, AC Genset Meter, or AC Load Meter.

• Vector Registration Method
  Uses vector registration, where the vectors of phases L1, L2, and L3 are summed for energy measurement. 

• Victron Ecosystem Monitoring
  Measurement data can be displayed through the VictronConnect app, compatible GX devices such as the Cerbo GX or Ekrano GX, and the Victron Remote Management portal. 

Best Uses

• ESS Grid Metering
  Well suited for compatible Victron Energy Storage System installations requiring responsive measurement of grid import, grid feed-in, and AC power usage.

• PV Inverter Monitoring
  Can be configured to measure the AC output of a compatible PV inverter and make the measurement data available to the Victron monitoring system.

• AC Generator Monitoring
  Supports configuration as an AC Genset Meter for compatible installations requiring generator power and energy measurement.

• AC Load Monitoring
  Can be configured as an AC Load Meter to monitor energy consumption from selected circuits or loads.

• Inverter & Inverter/Charger Output Monitoring
  Suitable for measuring the AC output of compatible inverter and inverter/charger systems.

• Distribution Panel Energy Measurement
  Clamp-type current sensing makes the meter practical for compatible distribution-panel installations where existing conductor routing should remain largely unchanged.

Product Specifications

Fast, Flexible Energy Measurement for Connected Victron Systems

The Victron Energy VM-3P75CT REL200300100 combines 75A current-transformer measurement, single- and three-phase capability, a fast 100ms refresh rate, VE.Can communication, Ethernet with Modbus UDP, and configurable meter roles. It provides a versatile solution for compatible Victron systems requiring responsive AC power and energy measurement.

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