Transfer Switch Contactors
Are the individual contactors inside the transfer switch replaceable? And does a 50 amp system use 220v contactors? Are they difficult to replace? thanks, Ron
Forum Discussion
The contactor is labeled "Chint NC1-5011" and does not have the voltage labeled on it. It does indeed have three connections ( 2 each hot, 1 neutral). Since there is nothing in the motor home that uses 220/240v, I would assume that the contactor should be rated only for 110/120v. When looking at these on Amazon, they look identical and are the same price but only the 220v is available. Does it really make a difference which one is used? I could see not using a 110v unit on a 220v system, but I don't see where using a 220v on a 110v system would matter. I would think only the contact would be more robust to handle the extra voltage.
However, it looks like it has been "tripped" as the center elongated section is sunken down into the unit by about a 1/4". Can this be reset? Also, there is a cover on the unit that is held down by two screws and seems to be holding down the center section.....can I removed the cover and reset the unit that way?
The whole switch runs about $300 bucks....the one contactor runs about $75. Nope, don't have to remove the whole switch to remove the contactor. Yes, I've opened it up and taken voltage measurements.
The issue is that 120v is going into the contactor but nothing coming out. Hence, no 120v shore power. Generator contactor works just fine.
Thanks for replying... appreciate it.
Ron
However, it looks like it has been "tripped" as the center elongated section is sunken down into the unit by about a 1/4". Can this be reset? Also, there is a cover on the unit that is held down by two screws and seems to be holding down the center section.....can I removed the cover and reset the unit that way?
Mandalay Parr on 12/19/16 03:29pm
Probably 120 volt.
Probably easier to replace whole switch. Probably have to remove it anyway to replace one of the contactors.
Have you opened it up to take a look?
What issue are you having?
The whole switch runs about $300 bucks....the one contactor runs about $75. Nope, don't have to remove the whole switch to remove the contactor. Yes, I've opened it up and taken voltage measurements.
The issue is that 120v is going into the contactor but nothing coming out. Hence, no 120v shore power. Generator contactor works just fine.
Thanks for replying... appreciate it.
Ron
