Square D LA molded case circuit breakers provide basic thermal magnetic protection. Their primary functions are to provide a means to manually open a circuit and automatically open a circuit under overload or short circuit conditions. LC and LI circuit breakers are used in industrial enclosures, panelboards, switchboards, busway plug-in units, combination starters and motor control centers This 3 poles I-line plug in circuit breaker is equiped with thermal magnetic trip unit with rated current of 400A and voltage of 600VAC. Extra High Interrupting breaker has an interrapting rating as 35kA at 600VAC. All LA molded case circuit breakers have trip indication as operating handle being in central position when the breaker is tripped. This circuit breakers are commonly used in I-line combo panel with terminal wire range for AL600LI35 as 2 wires AWG to 350 kcmil aluminium or coopper. LA breakers are UL 489, CSA, IEC certified.