The PowerPact™ H-frame circuit breakers are designed to protect electrical systems from damage caused by overloads and short circuits. H-frame circuit breakers are available with either thermal-magnetic or Micrologic™ electronic trip units. The amperage ratings of the thermal trip elements are calibrated at 104°F (40°C) free air ambient temperature. Per the National Electric Code® (NEC®) and the Canadian Electrical Code, standard circuit breakers may only be applied continuously at up to 80% of their rating. This PowerPact H circuit breaker is a 3-pole and has a rated current of 40A. With a breaking capacity of 14kA@600VAC operational voltage and a continuous current rating of 80%. This circuit breaker has a thermal-magnetic trip unit. This is a unit mounted breaker. This breaker complies to UL listed, CE, CSA & IEC standards. Dimensions for this breaker are 6.4 in(H), 4.12 in(W), 4.36 in(D), and has an ambient temperature of 40 °C. This product comes with an 18 months warranty.