The OF auxiliary switch communicates the Open or Closed status of the associated C60N or N40 circuit breakers or supplementary protector via auxiliary contacts, it is mechanically linked to the supplementary protector (See the SD alarm switch for Trip status).
It may be used in conjunction with the SD alarm switch, which presents the trip status, and the MN under voltage release, it would not normally be used with the MX + OF shunt trip because that device already includes the OF functions.
|
Auxiliary Contacts |
OF, SD | ||
|
Category Number |
26925/26928 | ||
| Voltage Ue (V) | Category AC12 | 277V | 3 |
| 220 to 240V | 6 | ||
|
Category DC12 |
12 to 24V | 6 | |
| 48V | 2 | ||
| 60V | 1.5 | ||
| 130V | 1 | ||
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