Product Description: The Siemens 3VA5110-1MU31-0AA0 is a Molded Case Circuit Breaker from the 3VA family. This 3VA51 type breaker is a 3-pole unit rated for 100 amps and 600 volts, with an AIC rating of 65kA at 480V. It features a Feed-Thru connection and provides Magnetic Only protection for reliable circuit interruption.