TRUMBELL ELECTRIC AT32020 is a 3-pole molded-case circuit breaker rated for 250 VAC and 20 A, designed for industrial power distribution and equipment protection. As part of the AT Series, it uses a bolt-on connection for panel-mount installation and provides thermal-magnetic trip protection with long-time and instantaneous (LI) trip functions. This unit is commonly installed in industrial control panels, machinery power systems, and motor control centers where reliable overcurrent protection is essential. It serves as a direct replacement for compatible TRUMBELL AT series installations, with common replacements including Square D FA32020 and Eaton FD3020.
