Contactor/overload wiring help pls...

[Colin33]

Hi all, never had to wire a domestic sewerage pump before so not my usual line of work. Was told I need a thermal overload for the pump (1.1kw) and this came with a contactor (not sure why it needs a contactor, but it appears that the overload unit need one to plug into. Can anyone please advise on how to wire this? The enclosure has an earth and Neutral link inside.

 

[westward10]

The contactor needs a control circuit do you have this in place.

 

[Colin33]

No, I just have the supply in cable, and the 3c to the pump....

 

[davesparks]

What starts and stops the pump? Did it not come with its own control gear?

 

[Colin33]

Yes the pump has it's own pre-wired control float. There is also a separate float to indicate high level, which I've wired into an alarm unit..

 

[davesparks]

Yes the pump has it's own pre-wired control float. There is also a separate float to indicate high level, which I've wired into an alarm unit..

Ok, and what exactly is it that you have there, is it a DOL starter or just the contractor and overload?

 

[Colin33]

It's a LE1D09 Schneider enclosed starter..

 

[davesparks]

It's a LE1D09 Schneider enclosed starter..

You should have the schematic for it included in the instructions then.

Just don't forget to adapt it for single phase operation

 

[Colin33]

I can't make any sense of the schematic, or which one of the ones shown to use. Hence my request for help here

 

[LankyWill]

I'm surprised the contractor isn't pre wired into the control panel with the float switches. That said the schematic included should state how to configure the contractor within the circuit. Just make sure the overload is set correctly or could have to fish a burnt motor out of a load of s***.

 

[LankyWill]

What model of control panel do you have?

 

[davesparks]

I can't make any sense of the schematic, or which one of the ones shown to use. Hence my request for help here

Then perhaps it's time to employ someone who knows what they are doing.

 

[Andy-1960]

Something like this...

 

[Colin33]

Then perhaps it's time to employ someone who knows what they are doing.

Couldn't find anyone close by willing/able to do it. I wired it up temporarily so that it could be used and decided to ask for help here. If you don't wish to help Dave then why even reply?

 

[westward10]

Can you show the cover for the contactor.

 

[LankyWill]

Colin where abouts are you? Without sounding rude, we're here to advise not step by step tell you. Any spark should be able to figure out that sort of control panel anyway, they're basic compared to others.

 

[telectrix]

@ OP whereabouts are you? it's not a big job for one of us who may be close to you.

 

[Colin33]

Sorry, don't have a pic of the cover. It has a blue reset button which sits over the contactor. Not sure why, because the thermal overload has it's own reset button.

 

[davesparks]

Something like this...

View attachment 36905

From what the op has said I think the float switch is already connected directly to the pump and doesn't need including in the control circuit of the starter.

 

[Colin33]

Location- West Cornwall...