Support Documents

Fuse Selection Simplified Help Table

Fuses	Melt Time 700 Amps	800	900	1000	10 Second Rating	Brand
A15QS400	10	3	0.4	0.125	700 Amps	Merson / Ferraz Shawmut
A15QS450	45	6	1.4	0.4	775 Amps	Merson / Ferraz Shawmut
A15QS500	N/A	N/A	N/A	300	1300 Amps	Merson / Ferraz Shawmut
A30QS350	40	11	3.5	1.3	810 Amps	Merson / Ferraz Shawmut
A30QS400	120	35	15	5	950 Amps	Merson / Ferraz Shawmut
A30QS450	>300	90	35	16.5	1150 Amps	Merson / Ferraz Shawmut
L50S300	40	25	15	9	980 Amps	Littel Fuse
A50QS300	45	18	8	4	880 Amps	Merson / Ferraz Shawmut
A50QS350	N/A	50	24	12	1025 Amps	Merson / Ferraz Shawmut

Sources:(Table are estimates based on graphs. Verify graphs for yourself and make sure to have a 10% safety factor for hot temperature. Battery amps do not reach peak flat line until approximately 4 seconds in race.)

https://ferrazshawmutsales.com/pdfs/A15QS.pdf https://ferrazshawmutsales.com/pdfs/A30QS.pdf https://ferrazshawmutsales.com/pdfs/A50QS.pdf https://www.mouser.com/datasheet/2/240/L50QS_High_Speed_Fuse_Datasheet-3311429.pdf

A15QS400 is recommended fuse for Hyper 9 system car.
A30QS400 is default recommendation for brushed DC motor car (Zilla 1k + Netgain 9" Motor is common)