How to install cassette type accessories
A circuit breaker shall be Trip position when installing Cassette type accessory. The breaker may be damaged if installing in "ON" or "OFF" position. Moreove... More Details >>
Shunt Trip for CP30-BA can be provided. However, the pole of that with Shunt Trip is "Relay type" without overcurrent tripping element. Internal circuit is "... More Details >>
Large electromagnetic force will be generated between conductors/wires due to fault currents. To prevent deformation and breakage of circuit breakers and con... More Details >>
Storage temperature range of MCCBs an...
It is from -25 to 55℃ in Trip or OFF position. However, it shall be in an environment without condensation and freezing even in a short time. More Details >>
It is the number that can be opened/closed per hour under the conditions specified in the standard. More Details >>
Default setting of electronic breakers
Each setting knob of the overcurrent trip characteristic is set to the maximum value and then shipped if not specified. However, only the pre-alarm is set to... More Details >>
It is a button in order to trip MCCB. It is used for regular inspection of the switching mechanism, and trip condition of MCCB when Alarm switch (AL) and Shu... More Details >>
Max. operational voltage for AC/DC Co...
When it is connected as special connection, AC/DC compatible circuit breaker can be used with DC 250V or more (3-pole type is DC400V and 4-pole type is DC500... More Details >>
MCCB, ELCB and ACB at higher altitudes
In that case, the rated current and the rated voltage shall be reduced. Refer to the table of derating factors as below. More Details >>
3P MCCB in 1-phase 2-wire circuit
It is possible. Refer to the figure for connection as below. More Details >>
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