Does someone know if this Power CB Total Clearing Time is a typo?
Does someone know if this Power CB Total Clearing Time is a typo?
(OP)
This is in relation with the arc fault experiments I was doing earlier on.
The Federal Pioneer Power Breaker H-3 claims the total clearing including its USD relay is 34mS
The CB datasheet is located here:
http:/ /www.schne ider-elect ric.ca/www /en/produc ts/switchg ear/H-3_LV _Power_Air _Circuit_B reaker.pdf
On Page three of the CB’s datasheet, it says that the Total Clearing including Relay operation time is 34mSec. This is a strange number, especially for such an old CB because modern Power CB typically have a total clearing time of 60mSec, and the fastest are maybe 50mSec. Thus, it makes me wonder if 34 mS is correct on the H-3 CB? That is one super fast power CB! Is this a typo or is this correct?
For reference, the following is Schneider’s modern Masterpack Power CB
http: //ecatalog .squared.c om/techlib /displaydo cument.cfm ?id=0613CT 0001&a ction=view
On page 175, it shows the Clearing time for the Masterpack at 60mSec.
Can anyone clear this up for me? I would much appreciate the help.
The Federal Pioneer Power Breaker H-3 claims the total clearing including its USD relay is 34mS
The CB datasheet is located here:
http:/
On Page three of the CB’s datasheet, it says that the Total Clearing including Relay operation time is 34mSec. This is a strange number, especially for such an old CB because modern Power CB typically have a total clearing time of 60mSec, and the fastest are maybe 50mSec. Thus, it makes me wonder if 34 mS is correct on the H-3 CB? That is one super fast power CB! Is this a typo or is this correct?
For reference, the following is Schneider’s modern Masterpack Power CB
http:
On page 175, it shows the Clearing time for the Masterpack at 60mSec.
Can anyone clear this up for me? I would much appreciate the help.





