Neutral conductor in focus DFS NU and DHS NU/NUS: switching devices with mains monitoring

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.

With the expansion of renewable energy, the demand for photovoltaic systems and heat pumps has grown. Doepke Schaltgeräte GmbH offers specialised residual current protection devices tailored to these applications.

The DFS PV has been specially developed for use in photovoltaic systems, and the DFS HP (HP for Heat Pump) [AB1] for use in installations with heat pumps.
Since both photovoltaic systems and heat pumps use inverters that can generate smooth DC residual currents, Doepke recommends the use of AC-DC sensitive residual current devices for all PV and heat pump installations.

The protection level of these residual current circuit-breakers for the energy transition meets the requirements of PV and heat pump manufacturers. In addition, the short-time delay optimised for these applications ensures increased system availability.

[AB1]Erklären wir im Deutschen ja nur, weil man sich wundern könnte, dass es nicht „WP“ für „Wärmepumpe“ ist, oder? Dann würde ich das im Englischen weglassen.

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.

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.

With the expansion of renewable energy, the demand for photovoltaic systems and heat pumps has grown. Doepke Schaltgeräte GmbH offers specialised residual current protection devices tailored to these applications.

The DFS PV has been specially developed for use in photovoltaic systems, and the DFS HP (HP for Heat Pump) [AB1] for use in installations with heat pumps.
Since both photovoltaic systems and heat pumps use inverters that can generate smooth DC residual currents, Doepke recommends the use of AC-DC sensitive residual current devices for all PV and heat pump installations.

The protection level of these residual current circuit-breakers for the energy transition meets the requirements of PV and heat pump manufacturers. In addition, the short-time delay optimised for these applications ensures increased system availability.

[AB1]Erklären wir im Deutschen ja nur, weil man sich wundern könnte, dass es nicht „WP“ für „Wärmepumpe“ ist, oder? Dann würde ich das im Englischen weglassen.