1. Residual current circuit breakers MBEFI are used for protection against indirect touching of parts under voltage.
2. For prevention of lasting voltage on earthed parts which should appear because of a defect in the electrical installation and for protection against direct contacts of parts under voltage in case of I n 30mA.
3. Residual current circuit breakers can be used in TN-S, TN-C, TT and IT network systems or with other words in all systems where neutral and protective conductor are separated (VDE 0100 Teil 410).
4. Types – Our programme comprises residual current circuit breakers which are sensitive to alternating residu al current (AC-type) and residual current circuit breakers which are sensitive to alternating and pulsating direct current (A-type).
Good quality , high breaking capability, updated structure,quick trip and guide installation, competitive price,excellent and safe performance,beautiful and compact appearance, etc .
|type A||type AC||type G||type A||type AC||type S||type G|
|For alternating residual current|
|For alternating and pulsating direct residual current|
|Short-circuit capacity with back-up fuse|
|VDE 0664, part 1(up to 80A)|
|lower temperature limit of application -25℃|
|Selective (time delayed min. 40 ms)|
|Short time delayed (min. 10 ms)|