
Too Many Residual-current Devices? Here's How to Choose the Right One
Discover five key factors to consider when selecting the perfect residual-current device for your needs.
Last updated 2 weeks ago. Automatically generated content.


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The circuit breaker type determines the specific function and application of the residual-current device, affecting its suitability for different electrical systems and environments. Selecting the appropriate type ensures optimal protection and performance, safeguarding against electrical faults and ensuring reliability in varied conditions.
Popular options (you can select more than one)
Miniature circuit breaker
Typical price
51.– to 190.–Designed for residential and commercial use, providing protection against overload and short circuits.
Offers compact size and easy installation, ideal for confined spaces and standard electrical panels.
Bestseller
Fault current circuit breaker
Typical price
100.– to 460.–Detects earth faults and interrupts the circuit to prevent electric shocks and fires.
Enhances safety by quickly responding to fault currents, suitable for sensitive applications and environments.
Bestseller
Residual current protection block
Typical price
140.– to 340.–Integrates into existing systems to provide additional residual current protection.
Ideal for retrofitting, enhancing safety without the need for complete system upgrades.
Bestseller
Motor protection switch
Typical price
76.– to 240.–Specifically designed to protect motors from overload and phase failure.
Ensures reliable motor operation and longevity, recommended for industrial and commercial motor-driven systems.
Bestseller
Residual current refers to the leakage current that a residual-current device (RCD) can detect and interrupt to prevent electrical hazards. Selecting the appropriate rated differential current is crucial for ensuring safety in electrical installations, as it determines the sensitivity of the RCD in detecting fault currents.
Popular options
Up to 0.03 A
Typical price
80.– to 270.–Highly sensitive detection, suitable for preventing electric shock incidents.
Recommended for residential settings and environments with higher safety requirements, such as bathrooms and kitchens.
Bestseller
0.04 - 0.3 A
Typical price
120.– to 400.–Moderate sensitivity, balancing safety and nuisance tripping.
Ideal for general purposes in commercial and industrial applications where occasional leakage might occur.
Bestseller
0.31 - 0.5 A
Typical price
100.– to 710.–Lower sensitivity, designed to prevent frequent tripping in heavy-duty applications.
Best suited for industrial settings with equipment that generates temporary leakage currents during normal operation.
Bestseller

Doepke DOEP DFS4 063-4/0,50-A S Residual current circuit breaker DFS4 4-po
Rated current is the maximum continuous current a residual-current device can safely handle, crucial for ensuring electrical safety in a building. Choosing the appropriate rated current helps prevent overloading and potential electrical hazards, thereby protecting devices and maintaining stability in electrical systems.
Popular options (you can select more than one)
16 A
Typical price
51.– to 210.–Suitable for low-power applications, such as lighting circuits and small appliances.
Ideal for residential settings with minimal power consumption, offering efficient protection without unnecessary capacity.
Bestseller
25 A
Typical price
80.– to 420.–Supports moderate power loads typical of household circuits including larger appliances.
Recommended for homes with moderate energy needs, ensuring reliable protection while accommodating increased electrical demand.
Bestseller
32 A
Typical price
68.– to 260.–Designed for higher power applications, often used in commercial environments or for heavy-duty appliances.
Offers enhanced capacity and safety for demanding electrical systems, ideal for settings with substantial power requirements.
Bestseller
63 A
Typical price
140.– to 570.–Handles high power loads suitable for industrial or large commercial applications.
Best suited for environments with extensive electrical usage, providing robust protection and capacity for large-scale operations.
Bestseller
Mounting type refers to the method by which a residual-current device is installed, affecting its compatibility with electrical systems and ease of installation. Choosing the appropriate mounting type ensures optimal functionality and integration within residential or commercial electrical setups.
Popular options (you can select more than one)
Top-hat rail
Typical price
68.– to 260.–Designed to be mounted on a standardized rail, commonly used in electrical enclosures.
Ideal for compact installations, offering ease of access and organization within control panels.
Bestseller
Built-in installation
Typical price
400.– to 2400.–Integrated directly into the electrical infrastructure, providing a seamless look.
Best suited for new constructions or renovations where aesthetics and space-saving are priorities.
Bestseller
Stand-alone
Typical price
54.– to 210.–Self-contained unit that does not require additional mounting structures.
Perfect for temporary setups or environments where flexibility and portability are necessary.
Bestseller
Module support
Typical price
110.– to 210.–Allows for modular installation, accommodating multiple devices within a single framework.
Facilitates scalability and customization, ideal for complex systems requiring frequent updates or expansions.
Bestseller
Choosing the right brand of residual-current device (RCD) ensures reliability and safety in electrical installations, impacting the overall security of a system. Brands like Hager and Siemens are renowned for their robust designs and high performance, offering peace of mind for both residential and commercial applications.
Popular brands (you can select more than one)
Steffen
Known for its user-friendly design and reliable performance in household RCDs.
Offers affordable solutions, making it ideal for budget-conscious homeowners.
Bestseller
Hager
Recognized for high-quality, durable RCDs used in both residential and industrial settings.
Provides advanced safety features, ensuring enhanced protection and compliance with safety standards.
Bestseller
Brennenstuhl
Specializes in portable and versatile RCD solutions for various applications.
Offers ease of use and installation, perfect for temporary setups or outdoor activities.
Bestseller
Siemens
Famous for its innovative and technologically advanced RCDs.
Delivers superior performance and reliability, ideal for complex electrical systems.
Bestseller
Schneider Electric
Known for its comprehensive range of RCDs catering to diverse needs.
Provides energy-efficient and sustainable solutions, supporting eco-friendly installations.
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