Contactor question

[Leejohnson222]

I need to replace a standard contactor 25a
That is used to pull in a 3 phase extraction fan.
I called a wholesaler who said just put a 63a one in it will be fine.
Surely I would be in danger of over current with this ?

I've not used many contactors so want to make sure it's installed correctly. I usually prefer to change like for like.

 

[ipf]

Well I was asking here as I wanted to changed like for like but the wholesaler had no idea what it was from the model number
[automerge]1575048486[/automerge]

I love the welcoming overwhelming support you get here, like there aren't so many different types of electricians and if you ask a question or for help your told to get a professional, wonderful

Have you sorted out the problem, then?

 

[davesparks]

I'm qualified but not seen anything like this before. Contactor connections are inside an enclosure and reset sit in a cut out for end user reset

That's not a contactor, it looks like a motor protection circuit breaker.
If you cannot get that particular brand it is likely you could use an alternative brand, but that can only be assessed by someone competent who has seen and understands the system and the rules about working on motor control.

What are you qualified as? Personally I'm a qualified electrician but that does not qualify me to work on this equipment and I wouldn't be deemed competent.

Well I was asking here as I wanted to changed like for like but the wholesaler had no idea what it was from the model number

It's not the sort of thing the average wholesaler normally deals with, youd be better off with a supplier who normally deal with motor controls or panel building supplies.

 

[Megawatt]

Have you sorted out the problem, then?

Have you sorted out the problem, then?

Lee that is a standard motor starter which looks like for starting a small motor. Guys the reset button is on the overloads not the contractor. I’ve used and worked on many of that style of motor starters. It should be in 3 piece unit with a MSP ( motor) starter protector the contractor and the overloads. They all bolt together
[automerge]1575069458[/automerge]

Lee that is a standard motor starter which looks like for starting a small motor. Guys the reset button is on the overloads not the contractor. I’ve used and worked on many of that style of motor starters. It should be in 3 piece unit with a MSP ( motor) starter protector the contractor and the overloads. They all bolt together

Lee is it in a bucket in an motor control center MCC