SQUARE D Safety Switch: Non-Fusible, 30 A, Single Phase, 240V AC, Galvanized Steel
The SQUARE D DU221RB is a 30 A, single-phase, non-fusible safety switch rated for 240V AC. Constructed with galvanized steel, it is suitable for both indoor and outdoor use. 3G Electric interprets your demand for…
SKU 3G-OTH-129118
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 DU221RB is a 30 A, single-phase, non-fusible safety switch rated for 240V AC. Constructed with galvanized steel, it is suitable for both indoor and outdoor use. 3G Electric interprets your demand for this specific OEM part, sources it across our supply network, and supports your procurement with specialist expertise in electrical controls.
Frequently Asked Questions
What is the SQUARE D DU221RB safety switch used for?
The SQUARE D DU221RB is a non-fusible safety switch used to manually disconnect power for maintenance or safety on single-phase 240V AC circuits. It is suitable for indoor/outdoor industrial and commercial applications where overcurrent protection is provided upstream.
What are the specifications of the SQUARE D DU221RB?
The SQUARE D DU221RB is a 30 A, single-phase, 240V AC non-fusible safety switch. It features a galvanized steel enclosure rated for indoor/outdoor use. The manufacturer part number is DU221RB. It is designed for reliable manual disconnection in industrial environments.
Where to buy the SQUARE D DU221RB worldwide?
3G Electric supplies the SQUARE D DU221RB worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this non-fusible safety switch.
How to install the SQUARE D DU221RB safety switch?
Install the SQUARE D DU221RB on a flat surface using the mounting holes. Ensure the supply is de-energized before wiring. Connect line and load conductors per the wiring diagram inside the cover. Use appropriate conduit and seal fittings for outdoor locations. Always follow local electrical codes.
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.
