E Frame thermal magentic circuit breakers are for use in NF panelboards. These circuit breakers will protect against overload and short circuit conditions. Breakers have a trip indicator. This bolt on circuit breaker has a maximum voltage rating of 480Y/277 VAC. This 2 pole 70 A breaker is rated for HACR applications. Breaker has a breaking capacity of 18 kA at 480Y/277 VAC. Circuit breaker has other breaking capacity ratings based on operting voltage. The breaking capacity code for this circuit breaker is D. Electrical connections are made using aluminum lugs. The lugs on this circuit breaker will accept 14 AWG to 2/0 AWG copper and 12 AWG to 2/0 AWG aluminum wire. Two spaces are used by this circuit breaker. Circuit breaker is 5.66 inches tall, is 1.96 inches wide and 4.05 inches deep. E frame circuit breakers are UL Listed and CSA certified.