Overload protection to a central heating pump x2

[Ian1981]

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.

 

[westward10]

Pump is a motor isn't it?

 

[Ian1981]

At the risk of being naive( and incorrect)I thought that the Difference Between a pump and a motor was that a Pump is a mechanical device used to raise or move fluids around using suction or pressure.
A Motor is an electro-mechanical device that converts electrical energy into mechanical energy.

 

[westward10]

What drives the pump, a motor.

 

[LeeH]

The motor drives the pump, how do you think it spins around?

The mechanical energy you speak of is the energy that drives the impeller.

 

[Ian1981]

Overload protection it is.
What do heating engineers know anyhow?

 

[westward10]

At the risk of being naive( and incorrect)I thought that the Difference Between a pump and a motor was that a Pump is a mechanical device used to raise or move fluids around using suction or pressure.
A Motor is an electro-mechanical device that converts electrical energy into mechanical energy.

This is absolutely correct but what drives the mechanical pump, the mechanical energy from the motor.

 

[buzzlightyear]

Overload protection it is.

yes .

What do heating engineers know anyhow

nowt ,that's why they are called wet pants ,there is water coming out of that hole, yeah but which one.

 

[GBDamo]

Pump is a motor isn't it?

certainly has one, unless you're planning on some Heath Robinson affair with strings and elastic bands.

 

[Wilko]

Hi - have you got the pump? Possible that single phase units will have built in overload protection and be plug and play for Mr Plumber.