The LC36500 Square D 3P 500A 600V 35KA I-Line circuit breaker is designed for optimal performance and reliability in demanding electrical applications. This three-pole breaker efficiently protects against overloads and short circuits, making it ideal for industrial and commercial use. Experience superior functionality and safety with this trusted circuit protection solution.
| Brand | Square D |
|---|---|
| Type | Molded-Case (MCCB) |
| Amperage | 500 A |
| Poles | 3-Pole |
| Voltage | 600V |
| Interrupting Rating | 35 kA |
| Mounting | Plug-In |
| Frame / Series | LC / I-Line |
| Catalogue # | SQDLC36500 |
The Square D LC36500 is a 3-pole, 500A, 600V, 35kA molded-case circuit breaker in the LC (I-Line) frame. As an I-Line plug-in breaker, it is designed to mount in Square D I-Line panelboards and switchboards — such as the NF, PF, and I-Line series enclosures — which accept the I-Line bus stab connection system. It is not interchangeable with QO or Homeline residential loadcentres.
Not sure if this breaker fits your panelboard? Send us your panel model number and we'll confirm compatibility.
Square D's I-Line system uses a proprietary bus stab that plugs directly into the I-Line panelboard bus, eliminating the need for separate lugs or bolted connections to the bus bar. This allows the LC36500 to be installed or swapped out quickly without disconnecting bus hardware — a key advantage in commercial and industrial settings where uptime matters. Bolt-on breakers, by contrast, are mechanically fastened to the bus and are not interchangeable with I-Line panels.
The Square D LC-frame I-Line series has been a long-standing industrial product line, though specific variants like the LC36500 can be difficult to source through general electrical distributors. Northern Breaker Group specializes in obsolete and hard-to-find breakers and maintains stock of I-Line breakers for urgent replacement needs across Canada. Contact our Calgary, Edmonton, or Vancouver counters or request a quote online for current availability.
Yes — the LC36500 is rated for 600V, making it fully suitable for Canadian 347/600V three-phase distribution systems commonly found in commercial buildings and industrial facilities. Always verify that the interrupt rating of 35kA meets or exceeds the available fault current at the point of installation, as required by the Canadian Electrical Code (CEC).
Looking for pricing, stock or delivery?
Reviews are for product feedback and are not monitored by our sales team. For a price, availability or lead time on this part, send a quote request — we reply from our Calgary, Edmonton and Vancouver counters.
No reviews yet for this product. If you have used it, your feedback helps other trades people choose the right part.

Be the first to review this product