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The SQDDTU223RB is a robust Square D 1PH 100A 240V double throw non-fused transfer switch, designed for reliable power management in various applications. With its durable NEMA 3R enclosure, it provides protection against outdoor elements, ensuring optimal performance. Ideal for residential or commercial use, it enhances safety and efficiency in power transfer.
Yes. The NEMA 3R rated enclosure on the DTU223RB is designed to resist rain and sleet, making it appropriate for outdoor installations — such as beside a standby generator on an exterior wall. Ensure the mounting location still meets local electrical code requirements for clearances and accessibility.
Because the DTU223RB is a non-fused transfer switch, it does not include built-in overcurrent protection. You must have appropriately rated upstream overcurrent protection (breaker or fuse) on both the utility and generator sides to comply with CEC and local code requirements. Contact us or your local authority having jurisdiction (AHJ) if you need guidance.
The Square D DTU series has seen limited availability through standard channels. Northern Breaker Group specializes in obsolete and hard-to-find electrical equipment across Canada — contact our Calgary, Edmonton, or Vancouver counters or request a quote online and we'll confirm current stock or source it for you.
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