same example may only be rated to operate at about 150 u00b0 c about 300 u00b0 f the lug 40 serves to thermally isolate the contactor 18 from the feeder cable 39 fig3 a 3b illustrate one example lug 40 from a side view and a top view respectively the lug 40 includes a heat sink portion 62 between the cable receipt portion 42 and the lead portion 44 the heat sink portion 62 has at least one increased dimension relative to the remainder of the lug 40 in the example of fig3 a 3b the lug 40 has a substantially constant height d 1 with the exception of the cable receipt portion 42 which is larger than d 1 in this example to accommodate the diameter of the feeder cable 39 in this example d 1 is about 0 2 inches about 0 5 cm with reference to fig3 b the lug 40 has a width d 2 adjacent the ends e g adjacent the cable receipt portion 42 and the lead portion 44 the width d 2 is about 0 5 inches about 1 27 cm moving from left to right in fig3 the width dimension of the lug 40 increases from d 2 to a second width d 3 which in this example is about 1 0 inch about 2 54 cm that is the ratio of d 3 to d 2 is about 2 to 1 between the ends the lug 40 exhibits the width d 3 over a length d 4 which is about 6 0 inches about 15 24 cm the ratio of d 4 to d 3 is about 6 to 1 adjacent the lead portion 44 the width of the lug 40 tapers down from the second.