Abstract: A modular gas exhaust assembly for a circuit breaker having a plurality of arc chutes, each having an associated expulsion location. The modular gas exhaust assembly includes a plurality of modular exhaust casings. Also included is a plurality of gas channels, each channel defined by one of the plurality of modular exhaust casings, the plurality of modular exhaust casings each configured to be removably coupled to at least one of the arc chute expulsion locations of the plurality of arc chutes, wherein the number of the plurality of gas channels is equal to the number of a plurality of poles of the circuit breaker, each gas channel aligned with a respective pole and configured to separately exhaust arc gases from the respective pole of the circuit breaker.

Abstract: A system for modeling a circuit breaker assembly and its components. The system comprises a computer generated and interactive system model, the system model comprising hierarchically arranged sub-models, each sub-model representing a different circuit breaker function, a first pin for passing simulated load current to the system model, and a second pin for passing simulated load current from the system model.