1996 XJS 4.0L Convertible.
The rear quarter window motors are activated via relays and are protected by a thermal breaker.
The front window motors are activated directly from the switch and are protected by a plain ol' 30 amp fuse.
Why the difference?

The reason I'm asking is that I'm doing some rewiring which will include smaller switches and relays for the front windows and am wondering if I should add the thermal breakers to the front circuit or if it would be ok with just the 30 amp fuse.