Can a user install welding cable in Siemens lugs?
Circuit breaker lugs must be tested with the type of wire to be used per UL486. UL489 dictates that manufacturers use standard Class B & C stranded wire per UL486 and therefore most standard lugs perform best with standard strand cable. The fine strand cable presents a problem for most standard lugs and can overheat under load or pull out under short circuits. Fine strand cable is not recommended unless the particular lug has been tested for such use. Siemens standard pressure lugs should not be used with fine strand wire. Compression lugs may be used or an alternate lug supplied separately. See Application Notes & Data sheet 2.15.1.0 Page 55 click here for more information.