ETI Three-Phase Modular Electricity Meter DEC-3 3x230/400V 80A MID

The ETI DEC-3 is a high-precision three-phase modular electricity meter designed for direct connection in residential, commercial, and industrial applications. With MID approval and Class B accuracy for active energy, it ensures reliable billing-grade measurement. The meter supports multi-tariff operation, RS485 Modbus communication, and features an LCD backlit display for easy reading.

Advantages

MID certified for legal metrology; multi-tariff capability up to 4 tariffs; integrated RS485 Modbus interface for remote monitoring; configurable S0 pulse output; real-time clock with battery backup; anti-tamper protection including terminal cover and magnetic field detection; wide operating temperature range from -40°C to +70°C.

Suitable for

• Sub-metering in apartment buildings and commercial complexes
• Industrial energy monitoring and management
• Integration with building management systems (BMS) via Modbus
• Renewable energy systems (solar, wind) net metering
• Demand-side management and load profiling

Key specifications

• Meter Type: Three-Phase, Four-Wire (3P4W)
• Connection: Direct
• Nominal Voltage: 3x230/400V AC
• Nominal Current: 5A
• Maximum Current: 80A
• Frequency: 50/60 Hz
• Accuracy Class Active Energy: Class B (MID, EN 50470-3)
• Accuracy Class Reactive Energy: Class 2 (IEC 62053-23)
• Measured Parameters: Active Energy (kWh), Reactive Energy (kVArh)
• Display: LCD with backlight
• Communication: Optical port (IEC 62056-21), RS485 (Modbus RTU)
• Tariff Support: Multi-tariff (up to 4 tariffs)
• Mounting: DIN rail, 7 modules (126mm)
• IP Rating: IP51
• Operating Temperature: -40°C to +70°C
• Pulse Output: Configurable S0
• Internal Clock: Real-Time Clock with battery backup
• Compliance: MID Approved
• Anti-Tamper: Terminal cover detection, magnetic field detection

Recommendations

For optimal performance, install the meter in a clean, dry environment within the specified temperature range. Use appropriate rated circuit breakers and ensure correct wiring according to the connection diagram. The RS485 communication allows easy integration with energy management systems.