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Shelly Pro 3EM-400A Relay With 3 x 400A Clamps
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-400 reports accumulated energy as well as instantaneous voltage, current, and power factor per phase in real-time.
- Can measure up to 400 A for each phase and the neutral
- 4 quadrant measurement with multiple connection types
- Accuracy Class B active energy (Compliance with IEC 62053-21 based on manufacturer testing)
- 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 400 A Current Transformers
4-quadrant measurement
Measure capacitive and inductive load types of active imported and exported energies
Accuracy class B (active energy)
Shelly Pro 3EM-400 has a measurement accuracy of 1%.
MODBUS support
Allows for easy and fast deployment in existing industrial installations..
Wi-Fi, LAN, and Bluetooth connectivity
Simultaneous Ethernet and Wi-Fi usage. MQTT, inbound and outbound WebSocket, UDP, mTLS support.
Power Monitoring
Monitors mono-phase electrical systems with up to 3 points simultaneously. Fast notifications and at least 60 days of 1-minute records storag
Scripting functionalities
Shelly Pro 3EM-400 fully supports mjS scripting, allowing you to create further features and functionalities.
Specifications
Size (HxWxD): 94x19x69 ±0.5 mm / 3.70x0.75x2.71 ±0.02 in
Weight: 62 ±1 g / 2.19 ±0.05 oz
Mounting: DIN rail
Screw terminals max torque: 0.4 Nm / 4.43 lbin
Conductor cross section: 0.5 to 2.5 mm² / 20 to 14 AWG (solid, stranded, and bootlace lugs)
Conductor stripped length: 6 to 7 mm / 0.24 to 0.28 in
Shell material: Plastic
Color: White
Ambient temperature: -20 °C to 40 °C / -5 °F to 105 °F
Humidity: 30 % to 70 % RH
Max. altitude: 2000 m / 6562 ft
Power supply voltage AC: 110 - 240 V, 50/60 Hz
Power supply voltage DC: N/A
Power consumption: < 3 WSensors, meters
Temperature sensor: Yes
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 % (5 - 400 A), ±2 % (0- 5 A)
Power and energy meters: Active and apparent power, Active and apparent energy, Power factor, Fundamental active and fundamental reactive energy
No load threshold: 30 VA per phase
Measurement data storage: At least 60 days of 1 min data resolution
Data export: CSV for PQ recorded values JSON format export through RPC
RF band: 2400 - 2495 MHz
Max. RF power: <20 dBm
Wi-Fi protocol: 802.11 b/g/n
Wi-Fi Range: Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions)
Bluetooth Protocol: 4.2
Bluetooth Range: Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions)
CPU: ESP32-D0WDQ6
Flash: 16 MB
Webhooks (URL actions): 20 with 5 URLs per hook
Scripting: mJS
MQTT: Yes
CoAP: No
