Product Description: This Siemens 3VA5112-4EC31-0AA0 is a Molded Case Circuit Breaker from the 3VA family, specifically the 3VA51 type. It is a 3-pole breaker rated for 125 amps at 600 volts, with an AIC rating of 25kA at 480V. The unit features a feed-thru connection and provides thermal magnetic protection for reliable circuit safety.