MARSTEK CT003 Smart Meter 1 /3 Phase
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The Marstek CT003 is a compact and versatile smart meter designed to collect real-time energy data and connect it to energy storage systems. With support for P1 and infrared communication and Wi-Fi and Bluetooth connectivity, it's ideal for integration into modern home energy systems.
Features & Benefits
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Communication via P1 & IR — The CT003 can communicate directly with the energy meter via P1 interface or via infrared (IR).
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Real-time monitoring & automatic energy distribution — the device continuously reads consumption and adjusts the power supply from the battery (or other sources) to minimize injection (feed-in) to the grid (“zero injection”) and thus optimize costs and consumption.
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Connectivity — Supports Wi-Fi (802.11 b/g/n) and Bluetooth 5.2 for communication with apps and power management systems.
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Powered via USB-C (5V) — the device is powered via a USB-C connection, making external power easy to manage.
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Compact size and lightweight — relatively small and light, making installation easy.
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Low self-consumption — the device consumes less than 2 W in operation.
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Robust temperature operation — works reliably in a temperature range of approximately –20 °C to +45 °C.
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Marstek System Compatibility — Designed to integrate with the Marstek VENUS, JUPITER, SATURN series, and other energy management products.
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Warranty & Reliability — Marstek offers a 10-year warranty on this product.
| Feature | Specification |
|---|---|
| Model | CT003 |
| Communication | P1 (USART), Infrared (IR) |
| Network | Wi-Fi (802.11 b/g/n), Bluetooth 5.2 |
| Power supply | 5 V via USB-C |
| Dimensions | approx. 53.7 × 52 × 25.5 mm |
| Weight | ~0.3 kg |
| Power consumption | < 2 W |
| Temperature range | –20 °C to +45 °C |
| Housing / Material | Plastic, black |
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Optimizing self-consumption — by intelligently controlling when solar energy is stored or returned, consumption and costs can be optimized.
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Energy management & balancing between sources — the device can help use surpluses from one source (e.g. solar energy) to reduce grid usage.
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Integration within a smart energy system — as part of a system with home batteries, inverters, and energy management software.
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Monitoring & reporting — use the accompanying app for insight into power usage, history, and trend analysis.
The integrated EMS automatically optimizes consumption, storage, and grid load. In the event of a power outage, the system switches to backup power within ≤10 ms.
With a built-in EMS (Energy Management System), support for peak shaving, and flexible charge and discharge settings, energy balance is automatically adjusted to consumption, grid status, and storage.
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