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EM540 — REL200100100 — is a three-phase electricity meter that measures AC consumption or generation with maximum accuracy. Designed for integration into Victron Energy systems, the meter connects to Cerbo GX, Ekrano GX, and Venus GX devices via RS-485. It is used in ESS systems, for monitoring home consumption, solar station generation, or measuring power on a sub-network.
Key benefits of the EM540 energy meter
- Measures energy in 3-phase networks up to 65 A per phase
- Operates via RS-485 — stable data transmission
- Ideal for homes, businesses, and solar power stations
- Supports measurement of generation, consumption, and grid export
- Enables the creation of a visual energy flow diagram in the Victron system
- Fully compatible with GX devices (Cerbo GX, Ekrano GX, etc.)
Technical Specifications
- Part Number: REL200100100
- Power Grid: 3-phase/4-wire (L1, L2, L3, N)
- Max. current: 65 A / phase
- Communication type: RS-485
- Device power supply: 230 V AC
- Mounting: DIN rail, standard module
- Measures:
- Power (W)
- Current (A)
- Voltage (V)
- Frequency (Hz)
- Reactive and total power
- Total energy consumed/generated (kWh)
Use Cases
- Measuring household consumption for ESS systems
- Measuring solar generation with a grid-connected inverter
- Commercial use in high-load 3-phase systems
- Displaying energy flow in the VRM Portal
- Configuring grid export limitation (Zero Feed-in)
- Monitoring the generator or the main grid
Communication and monitoring interfaces
- RS-485 – primary communication channel with GX devices
- Cerbo GX, Ekrano GX, Venus GX – automatic detection and integration
- VRM Portal – full data visualization, consumption/generation history
Service support in Ukraine
Total-Energo LLC is a certified Victron Energy partner in Ukraine and provides full support:
- System design
- Equipment selection and supply
- Installation and commissioning
- Connection to VRM
- Post-warranty service