The L-IR designation means it combines long-time and instantaneous protection — the standard thermal-magnetic curve for branch-circuit and feeder protection in distribution panels.
The 70 A continuous rating and current-limiting design mean this breaker interrupts fault currents before they reach full peak — reducing let-through energy and protecting downstream components. The rotary mechanism suits panel layouts where a direct front-panel operator is preferred over a toggle handle, common in industrial MCC and switchboard applications. The XT2 frame is a compact, high-density design that fits standard DIN-rail or panel-mount footprints.