Shelly Pro 3EM (400A)
VAT included · price in ZAR
Shelly appRuns in the free Shelly Smart Control app. It does not appear in the SmartKwam app.
This device is wired into your mains or DB board and must be fitted by a registered electrician.
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Built for feeds of up to 400 A per phase.
What it does
Shelly Pro 3EM-400 is the high-current version of the Pro 3EM, made for commercial, industrial and agricultural supplies. It mounts on the DIN rail and measures each phase separately through large 400 A split-core clamps that fit conductors up to 35 mm across.
Per-phase voltage, current, power and power factor reach the Shelly Smart Control app in real time, and at least 60 days of one-minute data stay on the meter for CSV or JSON export. That is useful for sub-metering tenants or following import and export on a large solar installation. The meter has no relay of its own; add the Pro 3EM Switch Add-on if you need it to drive a contactor.
What you need
Needs DIN rail space in the main DB and Shelly CT 400A clamps on the phase conductors. A neutral clamp is optional and not included.
Install
This device is wired into your mains or DB board and must be fitted by a registered electrician.
Mounted on the DIN rail in a main DB, with a 400 A clamp around each phase conductor. A registered electrician must fit it. Shelly's official guide, linked on this page, shows the wiring.
Features
- Three-phase or single-phase measurement up to 400 A per phase.
- Works with Shelly CT 400A split-core clamps.
- Wi-Fi, Ethernet and Bluetooth 4.2.
- Stores at least 60 days of one-minute data in 16 MB of flash.
- CSV and JSON export, scripting, webhooks and MQTT.
- Optional neutral clamp input, with the neutral clamp sold separately.
- Contactor control available with the Pro 3EM Switch Add-on.
Specs
- Size
- 19 × 94 × 69 mm (W × H × D)
- Weight
- 62 g
- Mounting
- DIN rail
- Model
- SPEM-003CEBEU400
- Power supply
- 110 to 240 V AC, 50/60 Hz
- Own consumption
- Under 3 W
- Current range
- 0 to 400 A per phase, via clamp
- Current accuracy
- ±1% (5 to 400 A), ±2% (0 to 5 A)
- Voltage range
- 100 to 260 V per phase, ±1%
- Compatible clamp
- Shelly CT 400A
- Connectivity
- Wi-Fi 802.11 b/g/n, Ethernet RJ45, Bluetooth 4.2
- Operating temperature
- -20 to 40 °C
- Mounting
- DIN rail
In the box
- 1 × Shelly Pro 3EM-400
Warranty
5-year manufacturer warranty.
Wiring guide and downloads
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R 6,119.00