B Type circuit breaker
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B Type circuit breaker
General
***It is B type RCCB***
Type B RCCBs, in addition to normal AC, can detect high frequency AC and pure DC earth leakage currents. Reducing the risk of fire and/or electrocution through automatic disconnection of the electrical supply relies on the selection of the correct type of RCCB.
Application Example
EV & PV installations
Frequency converters
UPS installations
High-frequency power converters
Building site power supply cabinets
1.1 Function
Control electric circuits.
Protect people against indirect contacts and additionalprotection against direct contacts.
Protect installations against fire hazard due to insulation faults.Residual current circuit breakers are used in housing, tertiarysector and industry
1.2 Selection
Detectable wave form
B class
Tripping is ensured for sinusoidal AC residual currents pulsed DCresidual currents,
alternating residual sinusoidal currents up to1000Hz, pulsating direct residual
currents and for smooth directresidual currents, whether applied suddenly or increasing slowly.
Tripping sensitivity
30mA -additional protection against direct contact.
Tripping time
Instantaneous
It ensures instantaneous tripping (without time- delay).
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