Residual current protection for the energy transition DFS PV and DFS HP: RCDs for photovoltaic systems and heat pumps

A common cause of damage to electronic equipment in households, trades and industry is an interruption of the neutral conductor. This can lead to overvoltage, often destroying connected electronically controlled devices and in the worst case causing fires.

The solution: the new residual current circuit-breakers (DFS) and main switches (DHS) with the suffix NU protect modern electronics against overvoltages caused by phase shifts. Here, NU stands for mains monitoring.[AB1]

DFS 6 NU and DHS 6 NU monitor all line conductors and the neutral conductor on the supply side. If an interruption is detected, the device trips – reliably protecting, for example, routers, TVs, induction hobs, smart home devices or electronic machine controls.

The DHS 6 NUS provides extended protection. With an additional sensor, it monitors not only the mains conductors but also the neutral conductor bar within the distribution board – for comprehensive equipment protection.

[AB1]Hat in der englischen Variante vielleicht keinen Mehrwert und könnte man streichen.

With the DPRCD-M, the residual current protection expert Doepke is presenting a compact module for assembling a five-pole personal protection switch for 400 V sockets.

Over just 8 module widths, the DPRCD-M combines an AC-DC sensitive residual current protection device with mains and protective conductor monitoring to increase the level of protection in mobile distribution boards. With a rated residual current of 30 mA, the DPRCD-M offers reliable personal protection and also ensures the protective function of upstream residual current circuit-breakers due to a 6 mA DC threshold. The module also offers external residual current and rotating field detection.

PRCDs are used between the socket and the load. Typical applications include the construction sector, events industry and also rescue operations.

The DPRCD-M from Doepke is available up to 63 A rated current. It offers full flexibility as the module can be used in a wide range of mobile distribution boards (mounted on mounting rails).

Predictive maintenance is an integral part of industry 4.0. It refers to proactive maintenance of installations with the goal of avoiding costly failures or damage. Data on the condition of the installation and forecasts regarding future installation behaviour are used for this purpose.

Residual current protection specialist Doepke offers e.Guard, a smart, modular system for condition monitoring of electrical installations. e.Guard continuously monitors and records residual currents. This allows the periodic insulation test in accordance with DIN VDE 0105-100/A1 to be dispensed with. In addition, e.Guard uses machine learning to detect gradual faults at an early stage, allowing intervention before downtime occurs.

Doepke e.Guard is designed in five levels and can therefore be planned according to individual requirements – from a flexible individual solution through to fully integrated monitoring of the system landscape for complex industrial structures.

Fitted in just five standard units, the DHS FANA from residual current protection expert Doepke combines a switch-disconnector with an emergency switching-off function and remote operation. This means that, in combination with an AC-DC sensitive residual current device (RCD), it meets the requirements of DIN VDE 0100-723 for classrooms with experimental equipment.

If no AC-DC sensitive RCD is installed, the AC-DC sensitive residual current circuit-breaker DFS 4 B SK FANA meets the dual requirement of the installation regulations in one compact device while also boasting remote operation for manual reclosing.

For both devices, an integrated active auxiliary device monitors the external emergency switching-off circuit. As soon as a connected emergency stop button is pressed, the DFS FANA or DHS FANA fully disconnects all poles of the electrical supply from the connected system components and loads. Reclosing can be carried out easily and conveniently via remote operation from a central location.

A common cause of damage to electronic equipment in households, trades and industry is an interruption of the neutral conductor. This can lead to overvoltage, often destroying connected electronically controlled devices and in the worst case causing fires.

The solution: the new residual current circuit-breakers (DFS) and main switches (DHS) with the suffix NU protect modern electronics against overvoltages caused by phase shifts. Here, NU stands for mains monitoring.[AB1]

DFS 6 NU and DHS 6 NU monitor all line conductors and the neutral conductor on the supply side. If an interruption is detected, the device trips – reliably protecting, for example, routers, TVs, induction hobs, smart home devices or electronic machine controls.

The DHS 6 NUS provides extended protection. With an additional sensor, it monitors not only the mains conductors but also the neutral conductor bar within the distribution board – for comprehensive equipment protection.

[AB1]Hat in der englischen Variante vielleicht keinen Mehrwert und könnte man streichen.

With the DPRCD-M, the residual current protection expert Doepke is presenting a compact module for assembling a five-pole personal protection switch for 400 V sockets.

Over just 8 module widths, the DPRCD-M combines an AC-DC sensitive residual current protection device with mains and protective conductor monitoring to increase the level of protection in mobile distribution boards. With a rated residual current of 30 mA, the DPRCD-M offers reliable personal protection and also ensures the protective function of upstream residual current circuit-breakers due to a 6 mA DC threshold. The module also offers external residual current and rotating field detection.

PRCDs are used between the socket and the load. Typical applications include the construction sector, events industry and also rescue operations.

The DPRCD-M from Doepke is available up to 63 A rated current. It offers full flexibility as the module can be used in a wide range of mobile distribution boards (mounted on mounting rails).

Predictive maintenance is an integral part of industry 4.0. It refers to proactive maintenance of installations with the goal of avoiding costly failures or damage. Data on the condition of the installation and forecasts regarding future installation behaviour are used for this purpose.

Residual current protection specialist Doepke offers e.Guard, a smart, modular system for condition monitoring of electrical installations. e.Guard continuously monitors and records residual currents. This allows the periodic insulation test in accordance with DIN VDE 0105-100/A1 to be dispensed with. In addition, e.Guard uses machine learning to detect gradual faults at an early stage, allowing intervention before downtime occurs.

Doepke e.Guard is designed in five levels and can therefore be planned according to individual requirements – from a flexible individual solution through to fully integrated monitoring of the system landscape for complex industrial structures.