Shelly Pro 3EM (120A)
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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Every phase of your supply, in one view.
What it does
Shelly Pro 3EM sits on the DIN rail and measures each phase of a three-phase supply separately through three 120 A clamps, which come in the box. It also works on single-phase installations, where the three channels can watch three different circuits.
Per-phase voltage, current, power and power factor reach the Shelly Smart Control app in real time. The meter keeps at least 45 days of one-minute data on board and exports it as CSV or JSON, which suits a business, workshop or farm that needs to see where its demand comes from.
It reads in both directions, so it can follow solar or inverter production on three-phase systems. The meter has no relay of its own, so add the Pro 3EM Switch Add-on if you want it to drive a contactor that sheds load when demand climbs past a set limit.
What you need
Needs DIN rail space and a live and neutral supply in the DB board. Three 120 A clamps are 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 the DB board, with one clamp around each phase conductor. A registered electrician must fit it. Shelly's official guide, linked on this page, shows the wiring.
Features
- Measures three phases, or three single-phase circuits, separately.
- Three 120 A current transformer clamps included.
- Wi-Fi, Ethernet and Bluetooth 4.2; Ethernet and Wi-Fi can run together.
- Stores at least 45 days of one-minute data, with CSV and JSON export.
- Active and apparent power and energy, plus power factor, per phase.
- Scripting, webhooks and MQTT for integrations.
- 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-003CEBEU
- Power supply
- 100 to 260 V AC, 50/60 Hz
- Own consumption
- Under 3 W
- Current range
- 0 to 120 A per phase, via clamp
- Current accuracy
- ±1% (2 to 120 A)
- Voltage accuracy
- ±1%
- Active energy accuracy
- Class B
- 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
- 3 × Shelly CT 120A current transformer clamp
Warranty
5-year manufacturer warranty.
Wiring guide and downloads
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R 3,263.00