Miniature Circuit Breaker SHELLY Pro 3CB C10

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SHELLY Pro 3CB C10 Circuit Breaker

The SHELLY Pro 3CB C10 is a smart, 3-pole circuit breaker with a rated current of 10 A, a C-type tripping characteristic, and a short-circuit rating of 6 kA. The device protects the electrical installation against overloads and short circuits, and also offers protection against overvoltage and undervoltage. Thanks to Wi-Fi, Bluetooth, and Ethernet connectivity, it allows for remote monitoring of circuit status and power management via the Shelly Smart Control app. The circuit breaker is designed for DIN-rail mounting and is suitable for both residential and commercial electrical installations.

System Protection and Power Parameter Monitoring

The Shelly Pro 3CB C10 automatically cuts off the power supply in the event of an overload or short circuit, reducing the risk of damage to the installation and connected devices. The voltage monitoring feature detects anomalies and responds when set thresholds are exceeded. The device also logs a history of up to 100 events, including manual and remote switching operations as well as safety feature activations. This allows users to more easily monitor the system’s operation and analyze the causes of any potential issues.

Remote management and automation

Thanks to Wi-Fi and Ethernet connectivity, the switch can be integrated into a smart home or building management system. The Shelly Smart Control app allows you to check the device’s status and remotely cut off power, which is useful in emergency situations or for energy management. Remote reactivation is possible only if the circuit was previously turned off remotely, and not as a result of a safety trip or manual disconnection. For maintenance purposes, the device is equipped with a mechanical lever and a safety switch that locks out electronic control. Support for schedules, scripts, MQTT, and webhooks also allows you to create your own automation scenarios.

DIN-Rail Mounting and User-Friendly Operation

The Shelly Pro 3CB C10 is designed for installation in an electrical panel on a standard DIN rail. Its dimensions are 93 × 72 × 76 mm, and it is powered by 230 V AC. The device is equipped with an RJ45 Ethernet port, LED indicators showing connection status, and a mechanical contact position indicator. The built-in web interface allows for configuration and monitoring of parameters directly on the local network, and compatibility with external automation systems expands the circuit breaker’s applications in complex installations.

 

ManufacturerShellyModelPro 3CB C10Device Typesmart circuit breakerNumber of Poles3Rated Current10 ATrip CharacteristicCRated Short-Circuit Capacity6 kAEnergy Limitation Class3Supply Voltage230 V AC, 50 HzMinimum Operating Voltage160 V AC, 50 HzInsulation Voltage500 VWithstand Voltage4 kVPower consumptionless than 3 WPower loss3.39 WProtectionovercurrent, short-circuit, overvoltage, and undervoltageVoltage measurementyes, accuracy ±5%Connectivity2.4 GHz Wi-Fi, Bluetooth 4.2, EthernetWi-Fi rangeup to 30 m indoors and 50 m outdoorsSupport for MQTT, webhooks, and scriptsyesSchedulesyesEvent historyup to 100 entriesControllocal and remoteMountingDIN railDimensions93 × 72 × 76 mmWeight465 gOperating temperaturefrom -5°C to +40°CElectrical enduranceover 6,000 cyclesMechanical enduranceover 10,000 cycles