I am looking for a DPDT (Two form C) relay with a high NC rating of 10A or higher with 12V coil. I have found a lot of relays but they all seem to have 3A NC rating which is too low for my application. This is for an automotive application so something with .250 or .187 spade terminals or ring terminals would be best. I have considered using two SPDT relays but for my use case a single DPDT would be better to minimize wiring and connections.
Welcome to the forum.
I did a search specifically on automotive style relays because regular high power relays are not designed for the unique environmental and mechanical challenges in a vehicle. (temperature, vibration, humidity, etc.).
This linked search result is for: Automotive, 12VDC coil, DPDT (Two form C), 10A minimum, in stock
https://www.digikey.com/short/5cqqthzw
Given the specialty nature of the automotive electronics field, I recommend asking a local replacement auto parts supplier. There may be better options at lower prices from the specialty suppliers, possibly in-stock locally.
Something like the AZ2800-2C-12DE is perfect for my need, it’s just that the NC rating is only 3A
https://www.digikey.com/en/products/detail/american-zettler/AZ2800-2C-12DE/12171605
That parts’ description is “RELAY EV CHG SOLAR” which indicates it’s designed for very specific applications. Not surprised it has an order of magnitude disparity between NC & NO contact current ratings.
I suspect the automotive grade relays in the search I posted will have less disparity and be a better electrical fit for your application.