Top rated Residual-current devices

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1. Steffen FI adapter

With the versatile FI plug (available optionally) and the mobile FI adapter, you are safely protected. These residual current devices detect alternating and pulsating direct currents and compare the incoming and outgoing currents with each other. If there is a deviation of more than 30 mA, the supply line is disconnected from the network within milliseconds. The FI devices prevent life-threatening electric shocks that can occur due to faults in wiring and equipment. They are ideal for use with electric garden tools, Christmas lights, workshop tasks, and more. High cold tolerance down to -25 °C, with undervoltage release. 

What our customers think

Pro

  • Protects human life
  • Well processed

Contra

  • Nasty design, clunky
  • No design award
  • not rotatable

2. Brennenstuhl Personal protection FI connector

The effective protection against electrical accidents quickly disconnects the active conductors from the network in the event of differential currents. The personal protection plug is suitable for permanent installation and as a durable additional equipment for frequently used electrical devices. It is also suitable for outdoor use and features a bipolar disconnection.

For functional testing, press the test button occasionally and perform a function check. Reconnect the personal protection plug after a power interruption.

Rated voltage: 230V
Network frequency: 50Hz
IAN: 30mA
Maximum tripping time: 30ms
Power consumption: max. 2300W
Rated current: 10A
Maximum permissible short-circuit current: 500A
Ambient temperature: -25°C to +40°C
Protection class: I
Protection type: IP54. 

3. Brennenstuhl FI-Zwischen-Schutzschalter

The Brennenstuhl RCD is a reliable safety device designed for outdoor use. With a rated current of 10 A and a residual current of 30 mA, this circuit breaker offers effective personal protection by switching off immediately in the event of a residual current. The type A circuit breaker is ideal for applications where the protection of persons and devices has top priority. The robust design with an IP55 protection rating ensures that the device is protected against dust and splash water, making it an excellent choice for use in demanding environments. The adapter plug is easy to install and enables uncomplicated integration into existing circuits. With its two-pole switch-off, the switch provides additional safety and reliability. 

4. Hager FI-LS 1P+N

The FI-LS 1P+N from Hager is a highly developed residual current circuit breaker that offers both safety and reliability in electrical installations. With a type C tripping characteristic and a rated current of 13 A, this switch is ideal for protecting electrical lines and devices from overload and short circuits. The switch is designed for mounting on DIN rails and features a fault position indicator that allows for easy identification of faults. The FI-LS 1P+N provides a residual current monitoring of 30 mA, making it an excellent choice for applications where the protection of people and devices is of utmost importance. Its compact design and the option to position the neutral conductor on the right facilitate installation and integration into existing systems. This switch is an essential component for modern electrical installations that require the highest safety standards.

- Residual current monitoring of 30 mA for enhanced personal protection
- Type C tripping characteristic for reliable overload protection
- Compact design for easy mounting on DIN rails
- Fault position indicator for quick identification of disturbances
- Switching neutral conductor for improved safety. 

5. Hager CDA440D

Hager RCD Switch CDA440D

Manufacturer: Hager
Designation: RCD Switch 4-pole 40A/30mA, 6kA
Type: CDA440D
Number of Poles: 4
Rated Voltage: 400 V
Rated Current: 40 A
Rated Residual Current: 0.03 A
Rated Insulation Voltage Ui: 500 V
Rated Impulse Voltage Uimp: 4 kV
Power Loss: 6.5 W
Mounting Type: DIN Rail
Residual Current Type: A
Selective Type: No
Time-Delayed Type: No
Short-Circuit Strength (Icw): 6 kA
Surge Current Strength: 0.25 kA
Voltage Type: AC
With Locking Mechanism: Yes
Frequency: 50 Hz
Additional Devices Possible: Yes
Protection Class (IP): IP20
Width in Division Units: 4
Installation Depth: 70 mm
Ambient Temperature During Operation: -25..40 °C
Degree of Pollution: 2
Connectable Conductor Cross-Section Multi-Wire: 1..16 mm²
Connectable Conductor Cross-Section Single-Wire: 1..25 mm²
RAL Number (similar): 7005
Explosion-Proof: No

Hager RCD Switch CDA440D: Additional Details
4-pole residual current circuit breaker 6kA 40A 30mA Type A. Residual current protective switch (RCD) according to DIN EN 61008-1 (VDE 0664-10), DIN EN 61008-2-1 (VDE 0664-11) with Bi-Connect terminals at the bottom, external blue test button, and residual current indicator. Suitable for retrofitting additional devices. Connection terminals with wire insertion protection, labeling option directly on the device. 

6. Hager CDA440DY

The Hager CDA440DY is a highly advanced residual current circuit breaker designed for use in electrical installations. With a 4-pole design, it provides a reliable protection solution against fault currents that can be potentially dangerous. The switch has a rated current of 40 A and a rated residual current of 30 mA, making it ideal for protecting people and equipment in residential and commercial buildings. Installation is straightforward on a DIN rail, facilitating setup in distribution cabinets. The CDA440DY is rated for an insulation voltage of up to 500 V and offers a high tripping characteristic that ensures a quick response to fault currents. With an IP20 protection rating, it is suitable for use in dry indoor environments. This residual current circuit breaker is an essential component for the safety of electrical systems.

- 4-pole design for comprehensive protection
- Rated current of 40 A for versatile applications
- Quick response to fault currents thanks to high tripping characteristic
- Easy installation on DIN rail for hassle-free setup
- Suitable for use in dry indoor environments with IP20 protection rating. 

7. Hager HAG ADS963D

The HAG ADS963D Fi-LS 1P+N 6kA C-13A 30mA Type A QC from Hager is a highly developed residual current circuit-breaker that offers protection against both overload and residual currents. With a rated current of 13 A and a rated residual current of 30 mA, this device is ideal for use in residential and commercial installations. The switch is equipped with a QuickConnect terminal for quick and easy installation. It fulfils the requirements of DIN EN 61009-1 and offers a high level of contact protection in accordance with DIN VDE 0106 Part 100. The blue test button and the residual current indicator ensure user-friendly handling and safety. In addition, the labelling option directly on the device enables clear marking, which makes maintenance and identification easier. 

8. Siemens FI/LS compact 6kA type 30mA C4

FI/LS compact 1P+N 6kA Type A 30mA C4. The RCD is the residual current protective device for touch protection. Siemens' patented residual current devices are an essential component of the SENTRON protection systems for electrical installations, as they prevent life-threatening electrical accidents by safely disconnecting dangerous fault currents to ground. Electrically ignited fires can be prevented at their inception. Whether through direct contact with live parts or indirect contact with operating equipment, protection is primarily achieved through rapid disconnection. The Siemens RCDs 5SV are characterized by: 1. Comprehensive protection for people and property against electric shock. 2. Whether sinusoidal alternating fault currents or smooth direct fault currents - Siemens offers the right type for all requirements as well as special versions. 3. Reliable safety during installation. 

9. Siemens Residual current circuit-breaker

This compact RCD/RCCB is VDE-tested and certified in accordance with DIN EN 61009-1, DIN EN 61009-2-1. The compact 5ST pin busbar system allows you to quickly and easily connect the 1P+N compact devices in just 1 TE without requiring additional space. The data matrix code on the device gives you quick access to all technical data in the Siemens Industry Online Support App. The Sentron protective switching devices can be expanded with many functions using the universal accessories from the modular system.
Optimum technology for your safety - only from Siemens. 

10. Siemens Residual current circuit-breaker 2P 10A C 0.03A Type AC 5SV1316-1KK10

FI/LS compact 1TE 1P+N 6kA Type AC 30mA C10. The use of these devices is not permitted in all countries. Please observe national installation regulations! FI/LS switches SENTRON 5SV1 for combined protection against overload, short circuit, and fault currents in just 1 TE. With the compact pin busbar system 5ST, you can quickly and easily connect the compact devices 1P+N in just 1 TE without additional space requirements. The data matrix code on the device provides quick access to all technical data in the Siemens Industry Online Support App. The SENTRON protective switching devices can be expanded with a wide range of functions using the comprehensive accessories from the system modular kit. Optimal technology for your safety - only from Siemens. 

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