Siemens Low Voltage Molded Case Circuit Breakers Sentron Molded Case Circuit Breakers - Enclosed Circuit Breakers are Circuit Protection Molded Case Circuit Breakers. Type QJ Std UL F. Rating 50/60Hz Frame QJ No. Of Poles 3P Enclosure TYPE3R L 27.4 W 11.6 H 7.3 Operating Temperature (-25C -- 75C) AMBIENT TEMPERATURE Environmental Conditions OUTDOOR