CAM1 series moulded case circuit breaker is a new type breaker which is applied with rated insulating voltage 800V(500V for CAM1-63), rated working voltage 690V and used for infrequent exchange and stratup in AC(60)Hz condition. The MCCB is of protecting functioin in overloading, short-circuit, and under voltage situation to protect circuit system and power device from damage.
The MCCB can be devided into L; M; H types according to their rated limit short-circuit breaking capacity.
The MCCB is advantageous for its compact body, high breaking capacity(some even on flying arc), short arc-casting and superior aseismatic function.
The MCCB has function of insulation wit its mark
The product complies with IEC60947-2, GB14048.2. Type code & signification N-P type from 4-P has 3 types: A type: N-P without current tripper(normally open); B type: N-P without current tripper working together with other 3P; C type: N-P without current tripper working together with other 3P;
No code for distribution type breakers, 2 for motor-protection type;
No-code for distribution type breakers, 2 for motor-protection type;
It can be divided into L(common)type, M(standard)type and H(high)type. L type with connecting current equal to relevant frame level and M type with breaking capacity equaling to their frame level according to their rated limited short short-circuit breaking capacity(lcu).
Normal working situation
Altitude 2000m and below;
Ambient temperature no higher than+40ºC(45ºC for watercraft)no less than-5ºC;
Stand moist air;
Stand salty&oil mildew;
Most gradient 22.5°;
Atmosphere without corrupt&electric air and no danger of explosion;
Without rain effect.
Main technique data of MCCB
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