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Shelly Pro 3EM – 400 is a DIN rail mountable three-phase energy meter. Enhanced with all the Gen2 firmware flexibility and LAN connectivity, it provides professional integrators with additional options for end-customer solutions. Shelly Pro 3EM reports accumulated energy as well as instantaneous voltage, current, and power factor per phase in real time.
- 4 quadrant measurement with multiple connection types
- Accuracy Class B (IEC 62053-21) active energy
- Photovoltaic ready
- Phase sequence error detection* (option)
- Optical pulse indication of energy usage
- Measurement accuracy tо 1%
- Stores data in non-volatile memory that can be retrieved for a period of up to 60 days in 1-minute intervals
- Package includes 3 pieces of 400A Current Transformers
- Power supply voltage AC 110-240V, 50/60Hz
- Power consumption < 3W
- Power metering 3 channels, up to 400A each
Features
- Mounting DIN rail
- Ambient temperature -20°C to +40°C
- Ambient humidity 30% to 70% RH
- Voltmeters (RMS for each phase) 100-260 V
- Voltmeters accuracy ±1%
- Ammeters (RMS via CT for each phase and the Neutral) 0-400 A
- Ammeters accuracy • ±1% at 5-400 A
• ±2% at 0-5 A
- Power and energy meter types • Active and apparent power
• Active and apparent energy
• Power factor
• Fundamental active and reactive energy
- Measurement data storage At least 60 days of 1 min data resolution
- Data export CSV for PQ recorded values, JSON format export trough RPC
Connectivity
- Wi-Fi protocol 802.11 b/g/n (2.4 GHz)
- Operational range (depending on local construction) • up to 50m outdoors
• up to 30m indoors
- Bluetooth protocol 4.2
- CPU ESP32-D0WDQ6
- Flash 16 MB
Dimensions
- (H x W x L) 94 x 19 x 69 mm
