JJA36225 SQUARE D 3P 225A 600V 25KA I LINE

The I-Line plug-in design means the breaker connects directly to a Square D I-Line bus without the need for separate bolt connections — it simply plugs into the bus stabs. This mounting style is specific to Square D I-Line panelboards and switchboards. It is not interchangeable with Square D QO, Homeline, or other non-I-Line bus systems. Send us your panelboard model number and we can confirm whether the JJA36225 is the correct fit.

The Square D JJA frame series can be difficult to source through standard distribution channels, and certain configurations may be discontinued or limited in availability. Northern Breaker Group specializes in exactly these hard-to-find and obsolete breakers. Contact our Calgary, Edmonton, or Vancouver counter for current stock status and to request a quote.

Yes — a breaker rated at 600V can be applied at any voltage up to and including that rating, so the JJA36225 is suitable for 208V, 240V, 480V, and 600V three-phase systems. Always verify that the breaker's 25kA interrupting rating meets or exceeds the available fault current (AFC) at the point of installation, as required by the Canadian Electrical Code (CEC).