SQUARE D Non-Fusible Safety Switch
The SQUARE D Safety Switch: Non-Fusible (MPN DTU321) is a 30 A, three-phase, 240V AC disconnect for indoor use, housed in galvanized steel. 3G Electric interprets your demand for this OEM part and delivers it with…
SKU 3G-OTH-129157
Also listed as: DTU 321 · DTU-321
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The SQUARE D Safety Switch: Non-Fusible (MPN DTU321) is a 30 A, three-phase, 240V AC disconnect for indoor use, housed in galvanized steel. 3G Electric interprets your demand for this OEM part and delivers it with specialist support across 14 industrial departments, including electrical and controls.
Frequently Asked Questions
What is a Square D DTU321 non-fusible safety switch used for?
The Square D DTU321 is a non-fusible safety switch used to safely disconnect power to three-phase industrial equipment operating at 240V AC. It is commonly installed in manufacturing, HVAC, and material handling systems where a visible disconnect is required for maintenance and safety compliance.
What are the specifications of the Square D DTU321 safety switch?
The Square D DTU321 is a 30 A, three-phase, non-fusible safety switch rated for 240V AC. It features a galvanized steel enclosure for indoor use. The manufacturer part number is DTU321. This switch provides a visible disconnect means for branch circuit protection in industrial control panels.
Where to buy a Square D DTU321 safety switch worldwide?
3G Electric supplies the Square D DTU321 safety switch to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this non-fusible disconnect switch.
How to install a Square D non-fusible safety switch?
Install the Square D DTU321 on a flat indoor surface using the mounting holes in the galvanized steel enclosure. Ensure the switch is wired per local electrical codes for 240V AC three-phase systems. Always verify the disconnect is in the OFF position before connecting incoming and outgoing conductors.
Used in
Common applications for SQUARESQUARE Products
3G Electric supplies SQUARE non-fusible safety switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
