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Type of residual current B+

Type B+ residual current circuit-breakers are AC-DC sensitive. They protect against pulsating and AC residual currents, residual currents with mixed frequencies and smooth DC residual currents. They...

Type of residual current B+

Type B+ residual current circuit-breakers are AC-DC sensitive. They protect against pulsating and AC residual currents, residual currents with mixed frequencies and smooth DC residual currents. They...


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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Technical informations

Type B+ residual current circuit-breakers are AC-DC sensitive. They protect against pulsating and AC residual currents, residual currents with mixed frequencies and smooth DC residual currents. They seamlessly detect residual currents in all frequencies up to 20 kHz with a maximum tripping threshold of 420 mA. The switches therefore provide better fire protection.