TJM10 1A and 5A parts interchangeable?

[Andiri]

Can the disc of a 5amp TJM10 relay be used in the same o/c element of a 1amp TJM10 relay? I have a broken puter frame-piece and it involves less work and adjustment to swop the frame with the disc than to dismantle all. I can understand that the current coils will differ, but are the discs the same,(thickness, density, ?? etc.), thus interchangeable?

Making the smoke come out is easy; getting it back in is a bugger.

 

[RalphChristie]

Andiri

I do not know if you can change the discs.
But why don't you change it and test it? After you've changed it, inject a few currents into the coil with a secondary testset and measure the trip-times. Plot it on the relay-curve and see if it behaves correctly.



Failure seldom stops us, it is the fear for failure that stops us - Jack Lemmon

Regards
Ralph

 

[busbar]

The manufacturer could most easily and accurately resolve this question. [I do not recognize a producer for ‘TJM-10.’]

 

[Andiri]

Thanks Ralph

Just what I did and found it to work. Initially the trip time was a little long for my liking. I then found that if I move the horseshoe magnet located under the disc a little further away from the disc that the trip times shorten. Closer to the disc, the longer the trip time.
So far so good

Busbar, TJM10 is made by Reyrolle, I'll try their site, thanks for the tip.

Making the smoke come out is easy; getting it back in is a bugger.

 

[Bung]

Wouldn't it be easier and better for quality control, protection security etc to just buy a new relay? You will get more functionality, a guarantee etc by doing it this way. Cannabalising old relays could give you a few problems if the relay fails to clear a fault - I wouldn't like to be the guy trying to explain it to the beak!

Bung
Life is non-linear...

 

[RalphChristie]

Bung

I agree that the new type of electronic relays are much beter than the old elctromechanical relays, have much more functions, and that the world are changing, but the electromechanical relays were all the years very reliable. If you injection-test the relay, and it behaves correctly, and you ensure that the relay-burden is not to high for a certain CT, I can see no reason why it should fail under fault conditions. I would rather say someone could easier make a fault with electronic relays, because they have a lot of different funtions, settings and contacts.

Both types of relays are doing the same kind job, one is just more modern.





Failure seldom stops us, it is the fear for failure that stops us - Jack Lemmon

Regards
Ralph