Novaris SFM surge filters provide excellent and effective MSB and DB protection for critical equipment from 40A to 125A per phase.
The SFM series utilize a 3 stage protection approach with 1st and 3rd stage MOV protection and a 2nd stage low pass LC filter.
Datasheet: http://www.novaris.com.au/wp-content/uploads/2016/03/SFM-40A-63A-2016.pdf