The Bulletin 300 series includes various contactors. Some Bulletin 300 contactors support DC coil voltage, while others support AC coil voltage at 50 or 60 Hz frequency. Additionally, some Bulletin 300 contactors are direct on-line types of contactors with 3 poles. These contactors can be used to switch 3-phase motors. Some Bulletin 300 direct on-line contactors have 1 N.O. auxiliary contacts, and some have 1 N.O. and 1 N.C. auxiliary contact. The maximum NEMA size for Bulletin 300 direct on-line contactors is size 8.
Browse available units in our catalog of Bulletin 300.