Bulletin 593 relays are oveload relays that are temperature-compensated. They are also Class 20 relays, and they are suitable for Type B heater elements. Bulletin 593CA relays support automatic resetting, and Bulletin 593CM relays support manual resetting. Bulletin 593 overload relays can be used with many motors that are designed for continuous duty operation. They are available with different numbers of poles and different maximum current ratings. Bulletin 593 relays have bi-metallic temperature-sensitive units built into them.
Browse available units in our catalog of Bulletin 593.