Federal MCCB Data sheets

Looks like the magnetic trip at 9–14 × In (900–1400A instantaneous trip)

HI, would 9 be for 5 second disconnection? I can calculate the The maximum disconnection then. That is what my thought is. 

HI, would 9 be for 5 second disconnection? I can calculate the The maximum disconnection then. That is what my thought is. 

9 will be 0.01–0.1s. I would say more like x3 for 5 seconds disconnection, 0.66 ohms 

The two lines with shading between represent the never trip (left of shade) and always trip (right  of shade) curves of time vs current - and both get faster at higher current.

Any real in spec device could be anywhere in the shaded zone.

To be sure of a trip, you need a PSSC to the right of the shaded zone, at horizontal 5 sec mark. Given the highly non-linear y axis, I'd be very wary of using the image on the breaker itself there are nearly 3 orders of magnitude between 100ms and 700 seconds, if you really need to know, you need the makers data. Which could be awkward, as they have not been made for some time.

but if you must then the white dots are where 1 second, 5 seconds and 10 seconds would be, and the current multipliers  on the RHS would be about 6 for ten seconds, 7 for 5 seconds and 9,5 for 1 second, 
based on a simple log lin axes best fit  (https://plotdigitizer.com/app) here be dragons, I;d not really trust anything based on measuring what is probably more of an artistic impression of the right curves than formal data.

coords from that curve fit overlay..

regards Mike