Siemens Safety Switch: Non-Fusible, 30 A, Three Phase, 240V AC, Galvanized Steel
The SIEMENS DTNF321 is a 30 A, three-phase, non-fusible safety switch rated for 240V AC. Housed in a galvanized steel enclosure for indoor use, it provides a reliable disconnect solution for industrial electrical…
SKU 3G-OTH-129147
Also listed as: DTNF 321 · DTNF-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 SIEMENS DTNF321 is a 30 A, three-phase, non-fusible safety switch rated for 240V AC. Housed in a galvanized steel enclosure for indoor use, it provides a reliable disconnect solution for industrial electrical systems. 3G Electric interprets your demand, sources this genuine Siemens component, and supports your application with specialist expertise across 14 industrial departments.
Frequently Asked Questions
What is the SIEMENS DTNF321 safety switch used for?
The SIEMENS DTNF321 is a non-fusible safety switch used to safely disconnect three-phase electrical equipment during maintenance or emergencies. It is rated for 30 A at 240V AC and is suitable for indoor industrial applications requiring reliable power isolation.
What are the specifications of the SIEMENS DTNF321 safety switch?
The SIEMENS DTNF321 is a non-fusible safety switch rated 30 A, three-phase, 240V AC. It features a galvanized steel enclosure for indoor use. The manufacturer part number is DTNF321. This switch provides a manual disconnect point for branch circuits.
Where to buy the SIEMENS DTNF321 safety switch worldwide?
3G Electric supplies the SIEMENS DTNF321 safety switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine Siemens equipment and support your procurement from order to arrival.
How to install the SIEMENS DTNF321 non-fusible safety switch?
Install the SIEMENS DTNF321 in a dry indoor location on a sturdy surface. Ensure the supply is de-energized before wiring. Connect line and load conductors per the wiring diagram on the switch. Torque terminals to manufacturer specifications and verify proper grounding before energizing.
Used in
Common applications for SiemensSiemens Products
3G Electric supplies Siemens non-fusible safety switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
