JGL36225 SQUARE D 3P 225A 600V 18KA I LINE

The I-Line plug-in is Square D's proprietary bus-stab mounting system used in their I-Line panelboards and switchboards. The JGL36225 plugs directly onto the I-Line bus without the need for bolt-on hardware, making installation and replacement faster. Compatible enclosures must be rated for I-Line breakers at 600V and 225A or above — share your enclosure model with us and we'll verify compatibility.

In many cases, yes. The JGL36225 is often a direct replacement for older Square D JGL-frame breakers of the same amperage and pole configuration in I-Line switchboards and panelboards. Because some legacy enclosures have specific breaker approval lists, we recommend confirming your existing panel model with our team before ordering — we specialize in obsolete and hard-to-find breakers and can help ensure a proper match.

The JGL36225 is rated at 600V, which aligns with Canadian distribution system voltages (including 347/600V systems), and Square D breakers are widely used in CEC-compliant installations across Canada. However, always verify that the specific breaker and panelboard combination is approved for your application and jurisdiction. Our team in Calgary, Edmonton, and Vancouver can assist with sourcing and application questions.