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Twin design

The Twin design enables a function test of the residual current circuit-breaker without switching off the load circuit. Two complete RCCBs are combined in this design: If both devices are on, a switch...

Twin design

The Twin design enables a function test of the residual current circuit-breaker without switching off the load circuit. Two complete RCCBs are combined in this design: If both devices are on, a switch...


Guide Basic circuits for electronic operating
equipment in accordance with
DIN VDE 0100 530 Annex A??

» AC full bridge circuit
» AC star circuit
» Full bridge circuit between external conductors
» Single-phase detection with smoothing

Systems with multiphase supplied frequency converters: Examples:
» Pumping, air conditioning and ventilation systems
» Escalators and elevator systems
» Medical devices
» Solar power plants
» Welding plants
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Products

Technical informations

The Twin design enables a function test of the residual current circuit-breaker without switching off the load circuit. Two complete RCCBs are combined in this design: If both devices are on, a switch can be tripped using the test button. The second RCCB takes over the current conduction and protective function.