LA36400 SQUARE D 3P 400A 600V 22KA I LINE

The I-Line plug-in design allows the LA36400 to stab directly onto Square D I-Line bus bars without additional hardware, making installation and replacement fast. It is not directly interchangeable with standard bolt-on MCCB mounting. If your panelboard requires a bolt-on configuration, a different variant of the LA frame may be needed — contact our team and we'll help identify the right option.

The Square D LA frame series has been superseded in some product lines, and new availability can vary. Northern Breaker Group specialises in obsolete and hard-to-find breakers, so whether you need a new, reconditioned, or surplus unit, we can source it. Reach out to any of our Calgary, Edmonton, or Vancouver counters for a quote.

The LA36400 is rated at 600 V AC, which means it is suitable for use on any system voltage up to and including 600 V — such as 208 V, 240 V, 480 V, or 600 V. However, note that the 22 kA interrupting capacity applies at the rated 600 V; available interrupting capacity may be higher at lower system voltages. Always verify the specific rating against your system's available fault current.