I'm getting ready to install a 22kw Generator with200 amp ATS & service. The ATS will be directly beside the service disconnect so my length from the disconnect to the ATS is less than 5' in length.
Will 2/0 copper THHN suffice for this due to the short distance or do I need to bump up to 3/0.
Will 2/0 copper THHN suffice for this due to the short distance or do I need to bump up to 3/0.