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Mccb 1P+N HWL Residual Current Circuit Breaker With Overcurrent Protection Rcbo Supplier

 

 
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Overload Current Protection Characteristics

Test Procedure Type Test Current Initial State Tripping or Non-tripping Time Limit Expected Result Remark
a B,C,D 1.13LN COLD T≥1H NO TRIPPING
b B,C,D 1.45LN AFTER TEST A T<1H TRIPPING CURRENT IN THE SS INTHE INCREASE CF STATILTY
c B,C,D 2.55LN COLD 1S<T<60S TRIPPING
d B 3LN COLD T≥0.1S NO TRIPPING TURN ON THE AUXILIARY SWITCH TO CLOSE THE CURRENT
C 5LN
D 10LN
e B 5LN COLD T<0.1S TRIPPING TURN ON THE AUXILIARY SWITCH TO CLOSE THE CURRENT
C 10LN
D 20LN
THE TERMINOLOGY “COLD STATE”   REFES TO THAT NO LOAD IS CARRIED BEFORE TESTING AT THE REFERENCE SETTING TEMPERATURE

 

Residual Current Action Breaking Time

Type In/a IΔn/a Residual Current (IΔ) is Corresponding To The Following Breaking Time(S)
AC TYPE ANY VALUE ANY VALUE in 2ln 5ln 5A.10A.20A.50A.100A.200A.500A
ATYPE ANY VALUE >0.01 1.4ln 2..8ln 7ln




0.3 0.15 0.04 0.04 MAX BREAK-TIME
The general  type rcbo whose current lΔn is 0.03ma or less can use 0.25A instead of 5 lΔn
    • Circuit Breaker MCCB residual current circuit breaker circuit breaker with overcurrent
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