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Ian1981

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Is it a requirement to provide overload protection to a central heating pump rated at 2.77amps?
I’m kinda under impression that an almost 3 amp pump jamming will get rather hot.
I mentioned this to the heating installer who has requested we just installed 2 x isolators for the pumps through a contactor as to not switch the pumps through the programmer which makes sense.
I am aware that the regulations require that a motor 0.37kw requires overload protection of the motor but a pump is not a motor, at least that’s how I view it.
Thoughts please.
 
This is where ringing the technical department should clarify matters but all I got in response to my question was “it’s upto you as the electrician “
I’ve gone ahead and ordered the overload relay anyway to be on the safe side.
Perhaps not very technical on my part but nevertheless it covers my arse
 
This is where ringing the technical department should clarify matters but all I got in response to my question was “it’s upto you as the electrician “
I’ve gone ahead and ordered the overload relay anyway to be on the safe side.
perhaps not a very good technical reason but it covers my arse.
A lack of engineering knowledge of motors on my behalf
 

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