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The SQDHDL36030 is a dependable Square D 3-pole circuit breaker, offering 30 amps of protection at 600 volts. Designed for robust performance, it features a durable construction suitable for various industrial applications. Ideal for protecting electrical circuits from overloads and short circuits, ensuring safety and reliability in your operations.
The HDL-frame series is rated for higher interrupting capacity than standard residential breakers, making it suitable for industrial and commercial circuits where available fault current can be significant. The exact interrupting rating (typically 18 kA or 25 kA at 600 V depending on the variant) should be verified against your system's available short-circuit current — contact us with your site details and we can help you confirm suitability.
Square D HDL-frame breakers have seen limited production runs and some configurations can be difficult to source through standard distribution channels. Northern Breaker Group specialises in exactly this type of hard-to-find and obsolete industrial breaker — reach out to our Calgary, Edmonton, or Vancouver counter for current availability and lead times.
In most cases, yes — provided the replacement breaker matches the original in poles, amperage (30 A), voltage rating (600 V), frame size (HDL), and mounting style (bolt-on). You should also confirm that the interrupting rating meets or exceeds your system's fault-current level. If you share your existing breaker's full catalogue number and panel model with us, we'll verify it's a drop-in fit.
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