Energy monitor smart-MAIC D103 for 3−Lines grid with Current Transformer type Clips up to 300A Smart meter D103-300 produced in Extended version only. For measurements of large currents and installation on highly loaded lines. This model for 3-phase WYE grid with neutral and uses current transformers up to 300A. The smart meter provides separate bi-direction metering of power consumption and generation, and 5 second data intervals for API and MQTT. The energy monitor D103-300 is a ready-to-use device and if you read the manual, it's not difficult to install. Connect the energy meter to your Wi-Fi point and the data will be sent to the cloud server once a minute. You can analyze electrical energy, power, voltage, current using the Dashboard and with no time limits. Key features * Wi-Fi Wireless interface * GSM Cellular (optional ») * Free cloud data server and the Dashboard * One-Minute data analysis and visualization » * Hourly/Daily/Monthly intervals without time limits * High accuracy ±0.5% F.S. (0.5 Class) * Built-in relay with condition control * API interface for developers * MQTT remote client * DIN Rail mounting Measured Parameters * Voltage, [V] * Current, [A] * Active Power, [W] * Reverse Active Power, [rW] * Active Energy, [Wh] * Reverse Active Energy, [rWh] * Power Factor (cosФ), [PF] Specifications Current Transformers (3 pcs) 100mA . . 300A CT Type / Inner Size Clips / 23 mm High Accuracy ±0.5% F.S. (0.5 Class) Max. Power at the relay < 50W Wireless Protocol 2.4 GHz / IEEE 802.11 (b, g, n) GSM Cellular (option) 4G WiFi USB Router (optional) Data Collection interval 1 minute Data Update interval 5 second Storing Data without Internet 17 days Working Range Temperatures -40 . . +60 ºС Power Supply AC 100-240V, 50/60Hz, 0.1A Size LхWхD 90х67х52 mm (3 DIN modules) Live Demo: dash.smart-maic.com Multilingual Manual: Read online » Brochure: Download » Website: www.smart-maic.com Knowledge Base: support.smart-maic.com Video review "What's in the box?" https://elecena.pl/product/23991408/smart-maic-d103-ct-300a-wifi-3-lines-energy-monitor 2023-08-03 https://elecena.pl/product/23991408/smart-maic-d103-ct-300a-wifi-3-lines-energy-monitor 2023-09-14 https://elecena.pl/product/23991408/smart-maic-d103-ct-300a-wifi-3-lines-energy-monitor 2026-01-01 https://elecena.pl/product/23991408/smart-maic-d103-ct-300a-wifi-3-lines-energy-monitor 2026-02-02 https://elecena.pl/product/23991408/smart-maic-d103-ct-300a-wifi-3-lines-energy-monitor 2026-03-01