Best materials for your protection
To ensure that we can provide you with absolutely safe fault switches, the circuit breakers are made of robust ABS plastic. Thanks to its stiff and tough material structure, acrylonitrile butadiene styrene is insensitive to electronic charging and largely resistant to grease, oil and temperature fluctuations. Precisely because of these outstanding properties, the material is perfect for use as fault-protection current switches. Use as components in other equipment used on construction sites is no obstacle for the material. Thanks to the use of high quality ABS material and the special manufacturing method, the circuit breakers are absolutely reliable and safe and will reliably protect you from damage if used correctly.
How does a residual current circuit breaker work?
A residual current circuit breaker should always intervene when there are irregularities in the power grid to prevent major damage. In doing so, the Fi switch constantly measures the current strength and interrupts the circuit immediately if irregularities occur. Specifically, the current flow between L (phase or current-carrying outer conductor) and N (neutral or neutral conductor). Currents that flow along an undesirable path are detected and cut off by the circuit breaker. The higher the difference in the electrical current intensity, the faster the circuit is interrupted. If the circuit breaker is tripped, the device is usually shut down within 0.5 seconds. Here is a small example, of how a residual current circuit breaker works. An intact device has an equal current flow between the conductors (L and N). However, if there is an insulation fault in a device and a human or animal touches the device, part of the current is conducted through the body to earth. The circuit breaker detects the differential current and switches off. The differential current starts from 30mA for humans.
When is the circuit breaker used?
As regulations are constantly evolving to protect consumers from serious injury or even fatal electric shocks, the use of a residual current device has been mandatory since 2019. This must also be retrofitted to older buildings or appliances since then. This obligation applies to all sockets in end circuits but also to outdoor circuits that can be used to supply portable devices. An RCD is connected upstream of a miniature circuit breaker (MCB). As the name suggests, the LS switch protects the line, whereas the RCD protects people. But not only serious electrical accidents are avoided with the use of a circuit breaker, RCDs also contribute to fire protection.