Shelly SPLIT-CORE-120A - Current Transformer, White

The Shelly Split-Core-120A current transformer monitors electrical current in smart home setups. This sensor connects to Shelly EM and Shelly Pro 3EM modules to track real-time power consumption. Rated for a maximum current of 120 A, it is suitable for high-load applications such as whole-house monitoring or dedicated sub-circuits. The split-core design allows the unit to clamp directly onto an existing conductor, enabling power readings without disconnecting the main wiring.

The current transformer is housed in a white plastic casing and is intended for indoor use. A snap-on mounting system simplifies installation inside electrical panels or distribution boxes. A 0.65 m lead provides enough length to reach the metering module, while the 2-pin MX3.0-2x1Y connector provides a secure link. With an internal diameter of 15 mm, the clamp fits the thicker gauge wires typically found in residential mains feeds.

• Measurement accuracy of 1%.
• Nominal current output of 0.04 A.
• Input impedance of 20 Ω.
• Weight of 75 g, minimising physical strain on the electrical cables.