Circuit-breaker vl 800 ul; type mg (cat no. hmx3x800) non-interchangeable frame w. approbation circuit-breaker to ul489 high switching capacity 3-pole, nema rating 65ka/480v, (molded case circuit breaker) overcurrent release etu, lig tu= 40 degr. celsius 3 phases/4 cables in= 800a, rated current ii= 1. 25 to 8 x in, short-circuit protection ir= 300-800a overcurrent rel. f. plant protection w/o connection accessories