SHELLY Pro 2CB C63 Circuit Breaker
The SHELLY Pro 2CB C63 circuit breaker is a smart, 2-pole electrical circuit protection device with a rated current of 63 A, a C-type trip characteristic, and a short-circuit breaking capacity of 6 kA. The device protects the electrical system against overloads, short circuits, and excessively high or low voltage. Thanks to Wi-Fi, Bluetooth, and Ethernet connectivity, it allows for remote circuit activation and deactivation, as well as measurement and monitoring of line voltage (V) using a built-in voltmeter. Support for the Shelly Smart Control app, schedules, automation scripts, and the MQTT protocol enables integration with smart home and building management systems. A built-in safety switch allows you to disable remote control, and an event history of up to 100 events makes it easy to monitor the operation of the safety feature.
| Manufacturer | Shelly |
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| Model | Pro 2CB C63 |
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| Device Type | Smart circuit breaker |
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| Number of poles | 2 |
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| Rated current | 63 A |
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| Tripping characteristic | C |
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| Rated short-circuit capacity | 6 kA |
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| Supply voltage | 230 V AC, 50 Hz |
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| Minimum operating voltage | 160 V AC |
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| Electronics power consumption | Less than 3 W |
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| Circuit breaker power loss | 11.20 W |
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| Energy limitation class | 3 |
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| Insulation voltage | 500 V |
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| Withstand voltage | 4 kV |
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| Protection functions | Overload, short-circuit, overvoltage, and undervoltage |
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| Mains voltage measurement (AC) | Yes |
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| Voltage measurement accuracy | ±5% |
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| Voltage monitoring | Yes, in volts (V) |
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| Current measurement (A) | No |
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| Power measurement (W) | No |
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| Energy consumption measurement (kWh) | No |
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| Internal temperature sensor | Yes |
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| Connectivity | Wi-Fi 2.4 GHz, Bluetooth 4.2, Ethernet (RJ45) |
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| Supported protocols | MQTT, HTTP, WebSocket |
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| Remote control | Yes |
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| Schedule support | Yes |
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| Automation script support | Yes |
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| Event history | Up to 100 entries |
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| App | Shelly Smart Control |
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| Installation | DIN rail |
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| Dimensions | 93 × 54 × 76 mm |
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| Weight | 335 g |
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| Housing Material | Plastic |
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| Color | Light gray |
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| Operating Temperature | -5°C to 40°C |
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| Operating Humidity | 30–70% RH |
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| Electrical Life | Over 6,000 cycles |
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| Mechanical durability | Over 20,000 cycles |
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