Shelly Pro 3EM
Next-generation DIN-mountable 3-Phase Energy Meter
Shelly Pro 3EM 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 120A Current Transformers
Specifications:
| PHYSICAL | |
|---|---|
| Current Transformer: | 3 x CT120 included in the package |
| 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 |
| ENVIRONMENTAL | |
| Ambient temperature: | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity: | 30 % to 70 % RH |
| Max. altitude: | 2000 m / 6562 ft |
| ELECTRICAL | |
| Power supply voltage AC: | 110 - 240 V, 50/60 Hz |
| Power supply voltage DC: | N/A |
| Power consumption: | < 3 W |
| SENSORS, 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 - 120 A |
| Ammeters accuracy: | ±1 % (2 - 120 A), ±2 % (1 - 2 A), ±5 % (0 - 1 A) |
| Power and energy meters: | Active and apparent power; Active and apparent energy; Power factor; Fundamental active and fundamental 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 |
| RADIO | |
| 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 |
| CPU: | ESP32-D0WDQ6 |
| Flash: | 16 MB |
| FIRMWARE CAPABILITIES | |
| Webhooks (URL actions): | 20 with 5 URLs per hook |
| Scripting: | mJS |
| MQTT: | Yes |
| CoAP: | No |
Warranty and Support:
Warranty inquiries and troubleshooting via the Shelly-Support-Ticketsystem