Mechanical Interlocking compact Ns or Masterpack Ns for smart circuit breaker
why select 4p 3200A Draw out sort ACB Air circuit breaker
Circuit breaker is generally composed of speak to method, arc extinguishing program, working mechanism, tripper, housing and so on.
The major traits of circuit breaker are: rated voltage Ue rated current In setting assortment of tripping current for overload protection (Ir or Irth) and limited circuit defense (Im) rated quick circuit breaker current (Icu for industrial use Icn for house use).
1.Auxiliary contacts: contacts that are mechanically connected with the major circuit dividing and closing system of a circuit breaker. They are largely utilised for exhibiting the dividing and closing states of a circuit breaker. They are related to the handle circuit of a circuit breaker and are managed or interlocked by the circuit breaker.
2.Alarm contacts: Alarm contacts for circuit breaker accidents, and this speak to only when the circuit breaker journeys off and breaks, primarily for the load of the circuit breaker overload brief circuit or undervoltage and other faults and totally free tripping, alarm contacts from the first normal open placement to the closed situation.
3.Excitation tripper: Excitation tripper is a sort of tripper driven by a voltage source. Its voltage has practically nothing to do with the voltage of the main circuit. Excitation tripper is an accent for extended-distance procedure of swap-off.
4.Undervoltage tripper: Undervoltage tripper is a tripper that leads to circuit breakers to open with or without delay when its terminal voltage falls to a specified assortment.
five.Electric Operator: This is an accessory for distant computerized switching and closing circuit breakers.
six.Prolonged handle: It is an exterior extended handle straight mounted on the deal with of circuit breaker. It is normally utilized on large capacity circuit breakers of 600A and above for guide switching-off operation.
seven.Manage locking system: a clamp is put in on the handle body, punched on the handle, and then locked with a padlock. Mainly used for closing circuit breaker.
|Frame rated current Inm(A)||2000||3200||4000||6300|
|Rated existing In(A)||630,800,1000,1250,1600,2000A||2000,2500,3200||2000,2500,3200,4000||4000,5000,6300|
|Icu(KA)||400V||80||100||one hundred||a hundred and twenty|
|Rated current at N-pole In(A)||50%In ,one hundred%In|
|Inhere producing &breaking time||23-32ms|
|Operational functionality||Electrical life||five hundred|
|Machanical life||Maintenance free of charge 2500
|Mounting method||Fixed /attract out|
|JCPT controller||Regular type M, telecommunication kind H|