Experts in residual current protective devices are providing safety in the audio sector

Doepke’s new mixed frequency sensitive residual current circuit-breaker, DFS Audio (RCCB type F), offers reliable protection for people and electrical installations against dangerous residual currents in audio ranges, without any loss of sound. With this RCCB, Doepke's residual current protection experts have taken on the task of protecting electric circuits with high-quality audiophile components, such as high-end turntables, CD players, network streamers, amplifiers and active loudspeakers. The new DFS Audio is also the ideal choice for use in the professional sector, for example, sound systems in theatres and concert halls, as well as cinemas.

This is made possible thanks to its particularly high-quality components, such as solid gold-plated connection terminals for conductors up to 50 mm², as well as solid silver-plated internal current conductors made of high-purity, low-oxygen copper. Unrestricted current flow also guarantees large-scale main switching contacts with high contact pressure and a summation current transformer designed as a push-through transformer. Its special design also ensures that no undesirable inductive fractions become effective during normal operation, and due to the extremely low-impedance nature of the design, the device guarantees a full sound experience while still offering maximum residual current protection.

Optimum protection from high-end audio devices

As the DFS Audio is designed as a type F device, it reliably detects pulsating DC and AC residual currents with a 50 Hz rated frequency, even if further frequency components are present in the residual current. This means that even modern technology is safely protected: today's audio devices are equipped with transformers or combinatorial circuit components. In the case of combinatorial circuits, the load current may contain not only a 50 Hz component but also other, significantly higher-frequency components which can occur as residual currents in the event of a fault.

Type F RCCBs operate independently of auxiliary voltage. They are also resistant to surge currents.

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