I have bought a replacement Run Capacitor for a forced action mixer (special cement mixer), as the run cap on the mixer blew. The mixer has a single phase motor, and although we are in the UK, it runs from a 110V power supply (standard on UK construction sites).
Possible reason it blew is that we used a power supply that didn't provide enough continuous power. Manufacturer recommends 5KVA continuous but we used 3KVA. Or we left the mixer on too long. Either way we have purchased a new 10KVA power converter and the electrician connected up to a 32A type C RCBO.
The motor is labelled with run cap and start cap values (130uF and 1200uF respectively) and I have researched a replacement capacitor and purchased this: https://www.mouser.co.uk/ProductDetail/80-C9TS6MD6137AARX. Unfortunately the manufacturer was unable to send a like-for-like replacement as the mixer is an old model.
I researched the subject and bought a polypropylene / film capacitor of 137uF, slightly more than the old one.
However my new replacement capacitor has three terminal blocks on the top, not two, and came with a tag on the connectors. I have looked at the data sheet but still don't know how to hook this up, or what the tag does. Behind the label of the tag appears to be PCB traces. The tab may be there to keep it discharged?
I am aware of the dangers of handling capacitors and how to discharge them.
1/ Have I bought the right capacitor? It is much larger in physical size than the original.
2/ Should this tab be removed? What is it for?
3/ Please see photo, showing three connections on the new cap. Which terminals do I hook up to the brown and blue wires (i.e. + and -) on the capacitor connection box on the back of the motor?