Shelly Pro 4CB C63 smart circuit breaker, 4-pole, 63 A
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Choose countryThe Shelly Pro 4CB C63 is a 4-pole smart circuit breaker rated at 63 A, with a C trip characteristic and 6 kA short-circuit breaking capacity. It protects electrical circuits against overloads, short circuits, overvoltage and undervoltage, while allowing remote circuit switching.
Control and automation
Wi-Fi 2.4 GHz, Bluetooth 4.2 and Ethernet provide connectivity for control and integration. The device supports the Shelly Smart Control app, schedules and automation scripts, plus MQTT, HTTP and WebSocket protocols for smart home and building management systems.
- Voltage monitoring: a built-in voltmeter measures AC mains voltage with ±5% accuracy.
- Remote-control lockout: a built-in safety switch lets you disable remote control.
- Event history: stores up to 100 entries.
Installation and measurement limits
The breaker mounts on a DIN rail and uses a 230 V AC, 50 Hz supply. It includes an internal temperature sensor, but does not measure current, power or energy consumption. Housing dimensions are 93 × 90 × 76 mm.
| Manufacturer | Shelly |
|---|---|
| Model | Pro 4CB C63 |
| Device type | Smart circuit breaker |
| Number of poles | 4 |
| Rated current | 63 A |
| Tripping characteristic | C |
| Rated short-circuit breaking capacity | 6 kA |
| Supply voltage | 230 V AC, 50 Hz |
| Minimum operating voltage | 160 V AC |
| Electronics power consumption | Less than 3 W |
| Circuit breaker power loss | 22.40 W |
| Energy limitation class | 3 |
| Insulation voltage | 500 V |
| Impulse withstand voltage | 4 kV |
| Protection functions | Overload, short circuit, overvoltage and undervoltage |
| Mains voltage measurement (AC) | Yes |
| Voltage measurement accuracy | ±5% |
| Voltage monitoring | Yes, in volts (V) |
| Current measurement (A) | No |
| Power measurement (W) | No |
| Energy consumption measurement (kWh) | No |
| Internal temperature sensor | Yes |
| Connectivity | Wi-Fi 2.4 GHz, Bluetooth 4.2, Ethernet (RJ45) |
| Supported protocols | MQTT, HTTP, WebSocket |
| Remote control | Yes |
| Schedule support | Yes |
| Automation script support | Yes |
| Event history | Up to 100 entries |
| App | Shelly Smart Control |
| Installation | DIN rail |
| Dimensions | 93 × 90 × 76 mm |
| Weight | 575 g |
| Housing material | Plastic |
| Colour | Light grey |
| Operating temperature | -5 °C to 40 °C |
| Operating humidity | 30–70% RH |
| Electrical life | Over 6 000 cycles |
| Mechanical durability | Over 10 000 cycles |
| Safety switch | Built in; allows remote control to be disabled |
| EAN | 3800238074159 |
|---|
Does this circuit breaker measure energy consumption?
No. It measures and monitors AC mains voltage with ±5% accuracy, but does not measure current, power or energy consumption.
Can remote control be disabled?
Yes. The built-in safety switch allows you to disable remote control.
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