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For sale is a Square D 9065 TF39 Thermal Overload Relay Series A 39?50A. Square D thermal overload relay. Class 9065, Type TF39, Series A. Adjustable trip 39?50 A (dial shows 39/45/50). Test button and reset control on face. Terminals labeled for NO/NC auxiliary contacts (95/96/97/98). Three power terminals on the base. Includes: relay and original worn box only. Typical use: motor protection as part of a Square D starter/contactor setup.