Square D LH Series circuit breakers are best suited for use in panelboards, industrial enclosures, busway plug-in units, switchboards and motor control centres for protection against short-circuit conditions and current overloads. These CSA-certified devices feature a thermal magnetic trip for providing instant reaction against severe power surges while avoiding tripping on mild overloads. They are integrated with I-Line style plug-in design for ensuring ease-of-installation and load-side lugs for hassle-free wiring. Choose from a broad range of these current limiting breakers available in amperage ratings ranging from 125 to 300A on Raptor Supplies.