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Smart energy sensor, 1P+N, 63A, Modbus RS485  Features: The smart energy sensor is an advanced compact device designed to efficiently and accurately monitor energy consumption in single-phase systems with a neutral wire (1P+N). Measures voltage, current, power and energy consumption. Has one measurement channel, so it can monitor only one circuit or phase (e.g. household electrical sockets, lamps, small loads). Modbus RTU communication model is used, compatible with industrial control systems. Ensures stable and fast communication in large facilities. Easy, flexible installation in smaller distribution panels, does not take up space on the DIN rail. It can be installed in an electrical circuit after a main circuit breaker, fuse or distribution panel, allowing it to monitor the energy consumption of specific electrical circuits or devices. Ideal for monitoring of energy consumption for industrial or commercial premises. Notes:  Do not install this device before a circuit breaker or fuse, as the device is not intended for protection and may be damaged by electrical faults. Installing this device downstream of control devices such as contactors, variable frequency drive or motor starters is forbidden. This may cause voltage pulses, harmonics or instantaneous current surges that would damage the device. Do not use where the current exceeds the nominal limit of the device 63A. The device must be installed in a dry place or using special protective boxes if there is a risk of moisture.  Technical specifications:  Max. current (Imax): 63 A (1P+N). Operating voltage: 110~240V AC. Frequency: 50/60 Hz. Rated insulation voltage: 250 V. Energy measurement accuracy: 1%; Class 1. Operating power: 0.5W. Rated impulse withstand voltage (Uimp): 4 kV. Surge category: III. Connection type: Modbus RTU (RS485). Reset button: yes. Indicator light: yes. Installation: downstream. Protection class: IP20. Operating temperature: -25°C~+60°C. Measuring cavity diameter: 9.8mm. Dimensions: 46.8x17.8x21.3mm.  Warranty: 24 months.