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Victron VM-3P75CT Energy Meter Manual

2. Introduction

In this section:

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)

  • Status LED can be configured as LED pulse counter for quick diagnostics at a glance

The VM-3P75CT can be configured for four different roles in a GX device, such as the Cerbo GX or the Ekrano GX:

  1. As a Grid meter and used as control input for an Energy Storage System (ESS)

  2. To measure the output of a PV Inverter

  3. To measure the output of an AC Genset

  4. As an AC meter to measure a dedicated AC load circuit

It offers two options for connecting to a GX device:

  1. A wired ethernet connection to a local network via its built-in Ethernet port so the GX device can reach it.

  2. 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

VM-3P75CT.svg

3x Split-core current transformer, wired ready for connection

Wire length: 640mm (25.3in)

Split-core_Current_Transformers.svg

VE.Can terminators (2 pcs)

2x_VE_Can_Terminator.svg