
Too many residual-current devices? Here's how to find the right one
Here are five key factors to consider when selecting the appropriate residual-current device for your needs.
Last updated 3 months ago. Automatically generated content.


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The circuit breaker type determines how the device protects against electrical faults. Choosing the right type is crucial for ensuring safety and compatibility with your electrical system.
Popular options (you can select more than one)
Residual current protection block
Typical price
130.– to 550.–Designed to detect and interrupt leakage currents, providing essential protection against electric shocks.
Ideal for environments where water is present, such as bathrooms or kitchens, enhancing user safety.
Bestseller
Miniature circuit breaker
Typical price
45.– to 160.–Automatically switches off electrical circuits in case of overload or short circuit, preventing damage.
Suitable for general household use, ensuring reliable protection for appliances and wiring.
Bestseller
Fault current circuit breaker
Typical price
94.– to 440.–Specifically designed to detect fault currents and disconnect the circuit to prevent hazards.
Essential for industrial applications where equipment failure can lead to significant risks.
Bestseller
Miniature circuit-breaker/residual current circuit-breaker combination
Typical price
94.– to 230.–Combines the functions of both miniature circuit breakers and residual current devices for comprehensive protection.
Perfect for residential and commercial settings, offering dual protection against overloads and earth faults.
Bestseller
The number of poles indicates how many circuits the device can protect simultaneously. Selecting the correct number of poles is vital for ensuring adequate coverage for your electrical system.
Popular options
1 - 1
Typical price
23.– to 68.–Single pole design suitable for protecting one circuit, typically used in smaller applications.
Ideal for simple lighting circuits or small appliances, providing focused protection.
Bestseller
2 - 2
Typical price
61.– to 160.–Two poles allow for the protection of two separate circuits, enhancing flexibility in installation.
Recommended for dual circuit applications, such as lighting and power outlets in a room.
Bestseller
3 - 3
Typical price
110.– to 710.–Three poles are designed for three-phase systems, commonly used in industrial settings.
Essential for heavy machinery and equipment, ensuring balanced load distribution and safety.
Bestseller
4 - 4
Typical price
160.– to 1000.–Four poles provide protection for four circuits, suitable for complex electrical systems.
Ideal for commercial installations where multiple circuits need simultaneous protection.
Bestseller
Rated current indicates the maximum current the device can handle without tripping. Selecting the appropriate rated current is crucial for preventing overloads and ensuring safe operation.
Popular options (you can select more than one)
10 A
Typical price
43.– to 150.–Designed for low-power applications, such as lighting circuits or small appliances.
Perfect for residential use where lower current loads are expected, ensuring safety without unnecessary tripping.
Bestseller
16 A
Typical price
43.– to 180.–Suitable for standard household circuits, providing reliable protection for most appliances.
Recommended for general use in homes, balancing safety and functionality.
Bestseller
25 A
Typical price
54.– to 270.–Handles higher current loads, ideal for larger appliances like ovens or air conditioners.
Essential for ensuring safe operation in kitchens or utility areas with high power demands.
Bestseller
40 A
Typical price
80.– to 490.–Designed for heavy-duty applications, suitable for industrial equipment and machinery.
Critical for environments with high power requirements, preventing overloads and ensuring operational safety.
Bestseller
63 A
Typical price
94.– to 400.–Capable of managing very high current loads, often used in commercial and industrial settings.
Ideal for large installations where multiple high-power devices operate simultaneously.
Bestseller

Siemens RCD circuit breaker
The tripping characteristic defines how quickly the device will trip under fault conditions. Understanding this characteristic is essential for ensuring appropriate response times to electrical faults.
Popular options (you can select more than one)
B
Typical price
38.– to 180.–Designed to trip at lower overloads, suitable for residential applications with sensitive devices.
Ideal for protecting lighting circuits and small appliances, minimizing the risk of nuisance tripping.
Bestseller
C
Typical price
51.– to 180.–Offers a moderate tripping response, suitable for general household and commercial use.
Recommended for circuits with a mix of resistive and inductive loads, providing balanced protection.
Bestseller
D
Typical price
68.– to 210.–Designed for high inrush currents, ideal for industrial applications with motors and transformers.
Essential for preventing unnecessary tripping in heavy machinery, ensuring operational continuity.
Bestseller
A
Typical price
89.– to 270.–Specialized for sensitive electronic equipment, tripping at very low leakage currents.
Perfect for environments with computers and medical devices, providing enhanced safety against electric shocks.
Bestseller
The brand factor is crucial in selecting a residual-current device, as it reflects the reliability and quality of the product. Trusted brands like Steffen, Hager, and ABB are known for their innovative safety features and robust performance, ensuring peace of mind for users.
Popular brands (you can select more than one)
Steffen
Recognized for high-quality residual-current devices with advanced protection features.
Offers excellent durability and reliability, making it ideal for both residential and commercial applications.
Bestseller
Hager
Known for a wide range of electrical solutions, including user-friendly and efficient RCDs.
Provides comprehensive safety features that enhance electrical system protection, suitable for modern homes.
Bestseller
Brennenstuhl
Specializes in portable RCDs and surge protectors, ideal for outdoor and temporary setups.
Provides convenience and safety for users needing protection in various environments.
Bestseller
ABB
A leader in electrical technology, offering innovative and high-performance residual-current devices.
Ensures superior safety and energy efficiency, making it a preferred choice for industrial and commercial settings.
Bestseller
Siemens
Offers a comprehensive range of RCDs known for their advanced technology and reliability.
Ideal for large-scale installations, ensuring safety and compliance with industry standards.
Bestseller

Siemens RCD circuit breaker