EM24 Ethernet Energy Meter – 3-phase, up to 65A/phase – REL200200100

What is the key difference between the EM24 and EM540 meters?
– The EM24 model communicates over a local network via an Ethernet port (Modbus-TCP protocol). In turn, EM540 transmits data over the VE.Can digital bus. Both devices are compatible with GX panels.
 

Can the EM24 be used in a house with one phase?
– Yes, it is a universal meter. To operate in a 1-phase network, it is enough to connect the wires only to the appropriate terminals, leaving the rest free.
 

Which model is preferable for building an Energy Storage System (ESS)?
– If there is already an Ethernet switch in the shield — take EM24. If it is easier to run a signal cable — choose EM540 with VE.Can.
 

Will I have to deal with programming the meter menu?
– Out-of-the-box factory parameters are suitable for 99% of ESS installations. If a non-standard configuration is required, it can be done using the joystick and the screen on the front panel.
 

Does the meter connect to the VictronConnect app via Bluetooth?
– No, the device does not have a Bluetooth module. All analytics are available via the Cerbo GX web interface or the VRM portal.
 

How to make a hardware connection of EM24 to the Cerbo GX unit?
– Just plug them into the same router with a standard twisted pair cable (RJ-45). The system itself will find the meter on the network.
 

Will it be able to calculate generation from a three-phase grid inverter (for example, Fronius)?
– Absolutely. EM24 accurately balances generated and consumed energy across all three phases.
 

Is this device suitable for implementing zero export to the grid (Zero Export)?
– Yes, this is one of its main functions. Receiving accurate data from EM24, the ESS system instantly regulates energy delivery to eliminate export.
 

Does the meter need access to the global Internet to work?
– No, communication between the meter and Cerbo GX occurs exclusively within the home local network.
 

What accuracy class does this meter belong to?
– EM24 is certified to Class B, which guarantees high accuracy and complies with standards for commercial metering.
 

Is it possible to view consumption for each phase separately?
– Yes, a detailed breakdown is available on the meter monitor and in the form of graphs on the VRM portal.
 

Does the device require periodic verification and calibration?
– The product goes on sale already calibrated at the factory and does not require additional intervention.
 

Is it possible to update the software inside the meter itself?
– No, the software is hardcoded and updates are not supported.
 

Is it allowed to install two EM24 meters at one site?
– Yes, but you will need to go into the settings of each of them and manually assign different IP addresses to avoid network conflicts.