Siemens DTNF363 100A 3P 600V Safety Switch, NEMA 1, Fusible, Non-Fusible | AmpState

The Siemens DTNF363 is a versatile safety switch engineered for reliable equipment disconnect and rapid isolation at the point of use. With a robust 100 A rating and three poles, this unit is purpose-built for mid- to high-load industrial applications where safety and quick Access to shut down are non-negotiable. Available from AmpState, the DTNF363 is a smart, ready-to-deploy solution for maintenance teams, panel builders, and stock inventories that demand a precise part-number fit.

• Current rating: 100 A
• Poles: 3
• Voltage: 600 V
• Enclosure: NEMA 1 (indoor use)
• Configurations: Fusible and Non-Fusible (dual configuration to match your protection scheme on site)
• Manufacturer: Siemens
• Part number: DTNF363

Smart features for real-world maintenance and safety

The DTNF363 is designed to simplify how you isolate equipment during maintenance, servicing, or fault isolation. Its NEMA 1 enclosure provides indoor protection against dust and incidental contact, while the selectable fusible/non-fusible configuration lets you adapt to your system without stocking separate parts. This flexibility is especially valuable in control panels and distribution centers where space and simplicity matter.

Ideal use cases

• Disconnection points for heavy machinery and conveyors in manufacturing facilities
• Panel builds and electrical assemblies where a reliable, pre-verified part match is critical
• Spare inventory in maintenance yards to minimize downtime when fast replacement is needed
• Point-of-use isolation in dusty or indoor environments that require rugged, dependable switches

Why choose the DTNF363 over other safety switches

Beyond basic specs, the DTNF363 delivers concrete operational advantages:

• Dual configuration flexibility: Switch between fusible and non-fusible without changing hardware, streamlining installation and future upgrades.
• Precise part-number matching: A direct Siemens DTNF363 part-number fit reduces sourcing ambiguity and accelerates procurement.
• Point-of-use safety: Quick disconnect capability supports safe maintenance workflows and Lockout/Tagout readiness.
• Compact, indoor-rated design: NEMA 1 enclosure suited for controlled indoor environments, helping to consolidate space in panels and switchgear

Support and compatibility

AmpState provides the DTNF363 in stock, with expert guidance to confirm fit and compatibility for your specific electrical system. Need help matching a part number or verifying compatibility? Message us and we’ll help you confirm fit, ensuring you get the exact switch you need—fast and accurately.