DK3400W - 400Amp Circuit BreakerDK3400W 400 Amp Circuit Breaker When you're dealing with high demand electrical systems, you dont have room for uncertaintyyou need a breaker that performs every single time. The Eaton DK3400W molded case circuit breaker is built for exactly that kind of environment. Designed as part of Eatons trusted Series C line, this 400 amp, three pole breaker delivers dependable protection against overloads and short circuits while keeping your operations