2. Introduction
The Victron VM-3P75CT energy meter is a standard device to measure the power and energy of single- and three-phase applications and calculates each phase's power values and broadcasts this over VE.Can or Ethernet with a high rate.
It has built-in Ethernet and VE.Can ports for connecting to a GX device and the split-core current transformers enable easy and quick installation without modifying existing wiring.
The energy meter works out of the box (the firmware may need to be updated; details can be found in the Firmware Updates chapter) as a grid meter for systems with a MultiPlus and Quattro. Configuration (via VictronConnect) is only required for changing the role and manual IP configuration rather than the default DHCP.
Its data is displayed on a GX device such as the Cerbo GX or Ekrano GX , as well as in VictronConnect and our VRM Portal.
2.1. Features
Capable of measuring up to 80Arms (Amps root mean square) per phase (but rated at 75A)
Modbus/UDP communication over Ethernet
Split-core current transformers for easy installation without modifying the existing wiring
Uses vector registration method (the vectors of each phase L1, L2 and L3 are summed)
The VM-3P75CT can be configured for four different roles in a GX device, such as the Cerbo GX or the Ekrano GX:
As a Grid meter and used as control input for an Energy Storage System (ESS)
To measure the output of a PV Inverter
To measure the output of an AC Genset
As an AC meter to measure a dedicated AC load circuit
It offers two options for connecting to a GX device:
A wired ethernet connection to a local network via its built-in Ethernet port so the GX device can reach it.
A wired VE.Can connection via the onboard VE.Can port directly to the GX device.
2.2. What's in the box?
Victron VM-3P75CT with 3 input terminal blocks |  |
3x Split-core current transformer, wired ready for connection Wire length: 640mm (25.3in) |  |
VE.Can terminators (2 pcs) |  |