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The SIELDK3B150L by Siemens is a robust 3-Pole, 150 Amp, 600 Volt breaker designed for efficient circuit protection. Ideal for industrial and commercial applications, it offers reliable performance and easy installation. Ensure safety and durability in your electrical systems with this high-quality circuit breaker, perfect for various applications.
The LDK3B150L is a bolt-on molded-case circuit breaker (MCCB) rated for industrial and commercial panelboards and switchboards that support the Siemens LDK3B frame at 600 V, 3-phase. It is not intended for residential loadcentres. Contact our team with your panel model to verify the correct fit.
Availability of specific MCCB frames and ratings can vary. Northern Breaker Group specializes in obsolete and hard-to-find breakers across Canada, so even if this unit is discontinued or backordered through standard channels, we can often source it. Reach out to our Calgary, Edmonton, or Vancouver counters for current stock and lead-time information.
Yes — at 150 A, 3-pole, and 600 V, this breaker is well suited for feeder or sub-feeder protection in commercial and industrial applications. Whether it qualifies as a service entrance device depends on your local Authority Having Jurisdiction (AHJ) and panel labelling. We recommend confirming with your electrician or electrical inspector before installation.
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