Operating handle BW9N series
- These devices indicate the MCCB's operation status electrically.
- Auxiliary switch (W):
- Auxiliary switch indicates the ON/OFF status of MCCB.
- Alarm switch (K)
- Alarm switch indicates the trip status of MCCB. MCCB trips at the time when the following condition occurs :
- Overcurrent
- Short-circuit current
- An auxiliary switch or an alarm switch can be mounted on the right side or the left side of the MCCB.
- 2-pole types are mountable on right side only.
