http://en.wikipedia.org/wiki/Circuit_breaker

      Type Instantaneous tripping current
      B above 3 In up to and including 5 In
      C above 5 In up to and including 10 In
      D above 10 In up to and including 20 In
      K above 8 In up to and including 12 In
      For the protection of loads that cause frequent short duration 
(approximately 400 ms to 2 s) current peaks in normal operation.

      Z above 2 In up to and including 3 In for periods in the order of tens 
of seconds.
      For the protection of loads such as semiconductor devices or measuring 
circuits using current transformers.



-- 
Gena
ivertimai@gmail.com
"Ekokodas" <ochsner@bustuva.lt> wrote in message 
news:gmelbd$2f5$1@trimpas.omnitel.net...
>O kas yra "D"
>
> "Evaldas" <sanya@takas.lt> wrote in message 
> news:gmefiu$ncn$1@trimpas.omnitel.net...
>> Kitokiu (ne C) ir nestato, o del SS geriau butu D.
>>
>> "Gena" <genadijus@kurana.lt> wrote in message 
>> news:gmee9i$l2h$1@trimpas.omnitel.net...
>>>
>>
>>
>
>
>