Shelly Pro CB – Smart Circuit Breaker with Remote Control

Intelligent protection for modern electrical installations.

The Shelly Pro CB series combines reliable circuit protection with modern smart home technology. The smart circuit breakers protect electrical circuits from overload and short circuits and also offer integrated overvoltage and undervoltage protection.

Thanks to Wi-Fi, Bluetooth, and LAN, circuits can be conveniently monitored, automated, and controlled remotely. Whether in a home, office, commercial building, or professional electrical installation – Shelly Pro CB ensures greater safety, control, and flexibility.

Key Features

• Intelligent circuit protection: Protection against overload, short circuits, overvoltage, and undervoltage.

• Remote control: Easily switch circuits on and off via the Shelly Smart Control app.

• Flexible connectivity: Supports Wi-Fi, Bluetooth, and Ethernet (LAN) for reliable network integration.

• Physical safety switch: Remote control can be deactivated directly on the device.

• Real-time voltage monitoring: Continuous monitoring of the mains voltage for early detection of voltage deviations.

• Automatic control: Custom schedules, automations, scripts, and webhooks enable intelligent workflows.

• Wi-Fi range extender: Can extend Wi-Fi coverage by repeating the signal.

• Comprehensive logging: Switching operations are documented with a timestamp and trip source.

• Local control: Also works without a cloud connection within the local network.

• Smart home integration: Integration into compatible smart home and building automation systems.

• Professional installation: Designed for installation in electrical distribution boards on DIN rails.

More safety through intelligent protection functions

The Shelly Pro CB series combines the classic protection functions of a circuit breaker with additional intelligent monitoring and control options.

In the event of an overload or short circuit, the circuit breaker protects the connected circuit. In addition, the integrated voltage monitoring enables a response to critical overvoltage and undervoltage conditions.

This makes Shelly Pro CB suitable for both private electrical installations and demanding commercial applications.

Control circuits anytime, anywhere

With the Shelly Smart Control app, you maintain control over your electrical installation – whether you are at home, in the office, or on the go.

Switch circuits remotely, check their status, or create custom schedules. Remote control is particularly practical for hard-to-reach electrical distribution boards, vacation properties, or technical systems.

An integrated physical safety switch allows the remote control function to be deactivated directly on the device.

Flexible integration via Wi-Fi, LAN, and Bluetooth

Thanks to the various communication options, Shelly Pro CB can be flexibly integrated into existing networks.

The Ethernet interface enables a stable wired connection, while Wi-Fi allows for easy wireless integration. Bluetooth simplifies setup and expands integration options.

Scripts and webhooks also enable more complex automation workflows.

Versatile applications

Smart home and residential use

Monitor and control selected circuits in your home installation conveniently via the app.

Commercial and office buildings

Enable centralized monitoring and demand-based control of electrical circuits.

Vacation homes and second homes

Monitor the status of your circuits remotely and switch off individual areas when necessary.

Technical systems

Use automated switching operations and voltage monitoring for intelligent system control.

Maintenance and building management

Facilitate planned shutdowns and document switching operations for better traceability.

Available variants

The Shelly Pro CB series is available in various versions:

Depending on the version, various rated currents are available.

Technical specifications

• Product type: Smart circuit breaker (MCB)

• Number of poles: 1, 2, 3, or 4 poles, depending on the model

• Tripping characteristic: C

• Rated breaking capacity: 6 kA

• Rated current variants: 10 A, 16 A, 25 A, 32 A, and 40 A, as well as 63 A, depending on the variant

• Communication: Wi-Fi, Bluetooth, and Ethernet

• Control: Shelly Smart Control, local web interface, and supported integrations

• Protection functions: Overload, short circuit, overvoltage, and undervoltage

• Automation: Schedules, scripts, and webhooks

• Mounting: DIN rail

• Certification: Tested and certified by TÜV Rheinland

The exact electrical specifications and connection requirements depend on the selected model and rated current variant. Installation and commissioning must only be carried out by qualified electrical personnel.

Shelly Pro CB – Intelligent protection for your electrical installation

With Shelly Pro CB, a classic circuit breaker becomes an intelligent solution for modern electrical installations. Benefit from reliable protection, convenient remote control, and versatile automation options – all in one professional device.

More safety. More control. Simply smarter.