I am looking to protect a phoenix contact terminal which is exposed to the elements. When the units come back for servicing I can see that they have corrosion on the contact. I recall purchasing wire nuts pre-packed with grease for the very same reason. I'd like to buy a tub/tube of a similar grease to pack inside these connectors.
Electronic – What type of grease could I use to pack in the connector to prevent corrosion
connectorcorrosion
Related Solutions
That connector looks to me to be a power type connector with connector pins on 0.156" centers. You can find styles of these from mainstream connector manufacturers such as TE, Molex and others.
This connector for example is Molex part number 09-65-2068 which you can find at www.mouser.com.
In the industry these are often called KK series connectors.
The corrosion looks like a Copper Salt (Like Copper Chloride). This type of corrosion will only happen in the presence of moisture and a DC current and generally on the negative terminal. (electrolysis) To prevent it, you need to prevent the moisture getting to the connector. This can be done using a plastic tube around the connector with cable ties and some desiccant. You can clean up the damage with some emery paper and methylated spirits. Then give it a spray with a contact cleaner (or WD40) to help displace any remaining moisture.
Best Answer
Dielectric Grease. Cheap, non-conducting, doesn't harden over time. Any auto store will have it.