• Model Number: OM3
• Place of Origin: , China
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Description

OM3 Moulded Case Circuit Breaker (MCCB)

1.Application

OM3 series moulded case circuit breaker , it's applicable circuit of AC 50Hz(or 60Hz),ratedinsulation voltage 690V(OM3-125 500V),rated operating voltage AC 690V or below ,rated oper-ating current 12.5-1600A, for distribute energy of electric and infrequent making and breakingcircuit in normal condition. The circuit-breakers are provided with the function of the protectionagainst overload and short circuit and under-voltage. The circuit breakers comply with standardof IEC60947-2.The circuit-breakers are double insulating (Inm=250A or above), the controlcircuit of the accessories is set apart with the main circuit , and doesn't need to open the coverof the circuit-breaker when install the accessories.

2. Specification







Type



Pole number



Rated insulating voltage(V)



Rated operating voltage(V)



Ultimate short circuitbreaking capacity Icu(KA)



Rated short-circuitserrice breakingcapocity Ics(%icu)



Utilization category





AC380V(400)



AC660V(690)





OM3-125L



1,2,3,4



500



500



25



-



50%



A





OM3-160L



3,4



690



690 and below



35



8



75%





OM3-160M



50



10



75%





OM3-250L



800



35



14



100%





OM3-250M



65



18



75%





OM3-250H



85



20



75%





OM3-400L



35



18



100%





OM3-400M



65



22



100%





OM3-400H



100



30



75%





OM3-630L



35



20



100%





OM3-630M



50



22



100%





OM3-630H



65



25



100%





OM3-800L



35



20



100%





OM3-800M



50



22



100%





OM3-800H



65



25



100%





OM3-1250/1600L



3



50



20



100%