Newly designed Mini Circuit Breaker
GKB-63 1PGKB-63 three-phase unbalanced treatment circuit breaker is suitable for AC 50/60Hz, rated voltage does not exceed 415V, rated
current to 63A circuit overload and short-circuit protection. Each phase of three-phase and four-wire has its own dedicated connection
channel, which is non-interference with each other.Technial Parameters
• Standard: GB10963.1 iec60898-1
• Rated voltage: 1P, 1P+N: 220/240v AC; 2P, 3P, 3P+N, 4P: 380/415v AC
• Poles: 1P, 1P+N, 2P, 3P, 3P+N, 4P
• Pollution level: level 2
• Protection lConstruction Equipment & Tools evel: IP20
• Installation category: class II, III
• Working environment temperature: -35°C to +70°C, average temperature is less than 24h +35°C. Circuit breaker of the reference
temperature of 30°C, when the environment temperature changes, the rated current value should be amended, revised coeffcient
see table 1.
• Elevation: the elevation of the installation site shall not exceed 2000m.Table 1 temperature correction factor table of rated current value
Rated CurrentCompensation Factor -35 ºC -20 ºC -10 ºC -0 ºC 10 ºC 20 ºC 30ºC 40 ºC 50 ºC60 ºC 70 ºC1-6A1.281.251.181.131.081.0310.960.910.870.8210-25A1.271.241.191.131.071.0210.90.910.870.8232-40A1.271.241.191.131.081.0410.970.920.880.8350-63A1.281.251.181.131.081.0310.960.910.870.82Installation and maintenance• Check whether the circuit breaker mark is consistent with the normal working conditions before installation;
• Before power on, manually operate the Wheel & Caster circuit breaker for several times, the mechanism action should be flexible, reliable, no blocking
phenomenon;
• Circuit breaker should be checked periodically during operation;
• APackage & Conveyance fter breaking the overload or short circuit current, the circuit breaker shall frst remove the fault and then restore the closing;
• Circuit breaker shall not fall or be affected by rain during use, storage and transportation