SHELLY Pro 3CB C63 Circuit Breaker
The SHELLY Pro 3CB C63 circuit breaker is a smart, 3-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 activation and deactivation of the circuit, 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.
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Manufacturer
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Shelly
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Model
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Pro 3CB C63
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Device Type
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Smart circuit breaker
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Number of poles
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3
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Rated current
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63 A
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Tripping characteristic
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C
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Rated short-circuit capacity
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6 kA
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Supply voltage
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230 V AC, 50 Hz
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Minimum operating voltage
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160 V AC
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Electronics power consumption
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Less than 3 W
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Circuit breaker power loss
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16.80 W
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Energy limitation class
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3
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Insulation voltage
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500 V
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Surge voltage withstand
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4 kV
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Protection functions
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Overload, short-circuit, overvoltage, and undervoltage
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Mains voltage measurement (AC)
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Yes
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Voltage measurement accuracy
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±5%
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Voltage monitoring
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Yes, in volts (V)
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Current measurement (A)
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No
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Power measurement (W)
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No
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Energy consumption measurement (kWh)
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No
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Internal temperature sensor
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Yes
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Connectivity
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Wi-Fi 2.4 GHz, Bluetooth 4.2, Ethernet (RJ45)
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Supported protocols
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MQTT, HTTP, WebSocket
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Remote control
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Yes
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Schedule support
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Yes
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Automation script support
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Yes
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Event history
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Up to 100 entries
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App
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Shelly Smart Control
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Installation
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DIN rail
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Dimensions
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93 × 72 × 76 mm
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Weight
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465 g
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Housing Material
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Plastic
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Color
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Light gray
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Operating Temperature
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-5°C to 40°C
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Operating Humidity
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30–70% RH
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Electrical Life
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Over 6,000 cycles
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Mechanical durability
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Over 10,000 cycles
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