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The SQDNF442L2 is a Square D 42CCT 225A 347/600V MLO NF Panel Interior designed for optimal performance in commercial electrical applications. This robust panel interior features a 225 amp capacity and accommodates multiple branch circuits. Ideal for robust electrical distribution needs, it ensures reliability and ease of maintenance in demanding environments.
MLO stands for Main Lugs Only — the SQDNF442L2 interior does not include a built-in main circuit breaker. You must provide overcurrent protection upstream, typically via a main breaker in your feeder switchboard or a separate fusible disconnect. This is a common and code-compliant arrangement in commercial sub-panel installations across Canada.
Yes. The 347/600V rating is the standard Canadian commercial three-phase wye voltage — 600V line-to-line and 347V line-to-neutral. This panel interior is specifically designed for that system and is well-suited to commercial buildings, light industrial facilities, and multi-tenant applications across Canada.
The SQDNF442L2 is sold as an interior only, meaning it can be retrofitted into a compatible Square D NF Series enclosure without replacing the entire assembly. This makes it a cost-effective option when your existing enclosure is in good condition. Contact us with your current enclosure details and we'll verify compatibility before you order.
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