The AC contactor uses the main contact to open and close the circuit, and the auxiliary contact to execute the control command.Fully enclosed contacts ensure safe,Copper terminals are durable,very easy to install and replace。 ProductSiteLaunchDate : 2020-12-08T16:05:27.195Z Size : 2P 40A 24V SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 32121500