SECOND RELAY UPDATE NON-SSR:
The Energy Savers from Dongya
Dongya DH200H https://www.dc-contactors.com/dh150-300-high-voltage-dc-contactor/high-voltage-dc-contactor-dh200h
* This company does not retail directly, you need to go through an authorised vendor, I am dealing directly with the manufacturer for this.
I found these through an EV Supplier who has had very good luck with them apparently, normally the company itself sells minimum batches of 100 pieces. The EV company is below, they sell them for $80 USD
Electric Car Parts Company relay listing
The update from the Manufacturer. They do NOT have a presence on eBay, Amazon etc.
Typically they have an MOQ (Minimum Order Quantity) of 30 pcs and they are EXW meaning your on the hook for duties, taxes and all that hubbub.
The DH200H Relays are $23.00 USD each plus S&H & Duties, taxes etc.