The PowerTag Energy M250 3P+N is a wirelessly communicating energy sensor. With its Monoconnect design, it is suitable for Compact NSX 100/160/250, Compact NS 100/160/250, Compact INS250, and Compact INV 100/160/200/250. It must be connected to a concentrator or gateway to enable monitoring of the circuit and diagnostics down to the load level. It has been specifically designed for applications in energy management, load monitoring, and power availability. It includes accurate real-time measurements of active and reactive energy, active, reactive, and apparent power, current, voltage, and power factor. In the event of a power failure, the device sends an alarm for voltage loss and the current value per phase before it loses power. The PowerTag Energy M250 complies with the IEC 61557-12 standard. It is a PMD-II/DD/K70/1. The power category is Class 1. The maximum current Imax is 250 A. The Ib rated current is 40 A. The saturation current is 500 A, and the inrush current is 160 mA. The nominal voltages are Phase-Neutral 230 VAC +/- 20% and Phase-Phase 400 VAC +/- 20%. The maximum consumption is less than or equal to 3.7 VA. It can be mounted directly on the bottom of the circuit breaker or the Vigi attachment terminals, or on the top or bottom of the socket, if available. The product color is gray (RAL 7016). The weight is 300 g. The protection class is IP20 and IK07. The operating temperature ranges from -25 °C to +70 °C. The storage temperature ranges from -50 °C to +85 °C.