AC switching units

16 products
16 products
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Automatic Bow-Stern Changeover LAE 241

philippi

Automatic Bow-Stern Changeover LAE 241

€89,00
€89,00
Automatic Shore Power Generator/Inverter Transfer Switch LAU 216

philippi

Automatic Shore Power Generator/Inverter Transfer Switch LAU 216

€345,00
€345,00
Automatic Shore Power Transfer Switch and RCBO Circuit Breaker LAU 216 F

philippi

Automatic Shore Power Transfer Switch and RCBO Circuit Breaker LAU 216 F

€445,00
€445,00
Automatic Transfer Switches + Inverter LAU 325

philippi

Automatic Transfer Switches + Inverter LAU 325

€549,00
€549,00
Automatic Transfer Switches + Inverters + RCBO Circuit Breakers LAU 325 F

philippi

Automatic Transfer Switches + Inverters + RCBO Circuit Breakers LAU 325 F

€649,00
€649,00
Automatic Transfer Switches + Inverters LAU 340

philippi

Automatic Transfer Switches + Inverters LAU 340

€639,00
€639,00
Automatic Transfer Switches + Inverters + RCBO Circuit Breakers LAU 340 F

philippi

Automatic Transfer Switches + Inverters + RCBO Circuit Breakers LAU 340 F

€739,00
€739,00
Bow-Stern Switch CAG 20 BH

philippi

Bow-Stern Switch CAG 20 BH

€167,00
€167,00
Country generator switch CAG 20 LG

philippi

Country generator switch CAG 20 LG

€166,00
€166,00
Main switch CH 16A 291

philippi

Main switch CH 16A 291

€76,00
€76,00
Cam switch CH 16A mains/converter

philippi

Cam switch CH 16A mains/converter

From €108,60
From €108,60
Cam switch CH 16 D 926 Mains/Generator/Converter

philippi

Cam switch CH 16 D 926 Mains/Generator/Converter

€259,00
€259,00
Main switch CA 63A 291

philippi

Main switch CA 63A 291

€229,00
€229,00
Cam switch CA 63A Mains/Transformer

philippi

Cam switch CA 63A Mains/Transformer

From €310,40
From €310,40
Cam switch CA 63 D 926 grid/generator/converter

philippi

Cam switch CA 63 D 926 grid/generator/converter

€749,00
€749,00
Blank plate for cam switch LEER CA

philippi

Blank plate for cam switch LEER CA

€19,50
€19,50

AC switching units

Switching units for multiple energy sources


If additional AC power sources are on board, such as a generator or inverter, they must be disconnected by an all-pole switching device. This prevents multiple sources from feeding into the onboard electrical system simultaneously.

If a generator and/or inverter is to feed power into the existing AC electrical system in addition to the shore power connection, a transfer switch is necessary for isolating and safely switching the individual power sources. These transfer switches operate with a delayed switchover between the individual sources to prevent the risk of short circuits caused by phase shifts between the sources and inductive load currents. When retrofitting a transfer switch, it is essential to ensure that the outputs are protected by RCBOs (residual current circuit breakers).

Automatic switching devices are used for convenient mains switching. The LAU series switching devices measure the mains input voltage of the respective power sources and only connect them to the onboard electrical system when it meets the onboard requirements (voltage and switching time are adjustable). This ensures that AC generators are only switched on once they have started up correctly and reached their rated voltage. The LAU switching units are prepared for connection to the Philippi PBUS. In conjunction with the PSM/PSL system monitor, the switching delay time and voltage thresholds can be adjusted to the respective power sources. An additional output circuit ensures that, for example, the charger and water heater are deactivated during inverter operation to protect the batteries from unwanted discharge.