circuit breaker VL 150x UL type CG (CAT NO. NCX3B020) non-interchangeable frame w/approval circuit breaker to UL489 standard breaking capacity 3-pole, nema rating 35kA/480V (molded case circuit breaker) overcurrent release TM, li function TU=40degr ceLSIus In=<20A rated current iI=300A short-circuit prot. ir=20A overcurrent release for system protection w/o connection accessories without auxiliary release without auxiliary/alarm switch