The RSH-50 with 60A Non-Fused Disconnect Box is designed to provide reliable surge protection for single-phase, 120/240V air conditioning units, heat pumps, and ductless mini-split systems (DMSS). Featuring advanced Gas Discharge Tube and TFMOV Technology, the RSH-50 offers superior protection against transient over-voltage and natural-cause surges. The surge protector is tabbed directly into the disconnect box to prevent code violations caused by multiple wires being lugged in. A green LED indicator provides a clear indication of protection status, ensuring peace of mind for system longevity and performance.