clemo wrote:John_W wrote:GeoffSmith wrote:… the important thing is I²t for very short duration transients such as might be demanded by a pump motor. If the relay impedance was significant, then the motor may well play up as current spikes collapse the applied voltage.
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Yeah... tell us something we don't know.
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Actually i have no idea what they are talking about .
Neither have I ... and I'm an Electrical Power Engineer.
Point of my post was Geoff said " fuse is rated 7.5A and the pump is likely to demand more than that transiently" which might encourage some owners to change it to a higher rated fuse. (It crossed my mind...)
Highest current I saw was 4.2 amps so stick with 7.5 amp fuse in A3... (unless you've fitted a non-OE pump for any reason).



