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Siemens Safety Switch: Non-Fusible, 100 A, Single Phase, 240V AC, Galvanized Steel - Non-Fusible Safety Switches
SiemensNon-Fusible Safety Switches

Siemens Safety Switch: Non-Fusible, 100 A, Single Phase, 240V AC, Galvanized Steel

The SIEMENS Safety Switch: Non-Fusible (MPN DTNF223) is a 100 A, single-phase, 240V AC disconnect rated for indoor use with a galvanized steel enclosure. 3G Electric interprets your demand for this specific OEM…

SKU 3G-OTH-129271

Also listed as: DTNF 223 · DTNF-223

Brand
Siemens
Item
Safety Switch: Non-Fusible, 100 A, Single Phase, 240V AC, Galvanized Steel
Category
Non-Fusible Safety Switches
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Payment
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Technical Specifications

Siemens
Manufacturer Part Number
DTNF223
Type
100 A, Single Phase, Galvanized Steel, Indoor
AC
240V

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Safety Switch: Non-Fusible (MPN DTNF223) is a 100 A, single-phase, 240V AC disconnect rated for indoor use with a galvanized steel enclosure. 3G Electric interprets your demand for this specific OEM safety switch, sources it through our global supply network, and supports your facility with specialist expertise across 14 industrial departments — including electrical, combustion, and controls.

Frequently Asked Questions

What is the Siemens DTNF223 safety switch used for?

The Siemens DTNF223 non-fusible safety switch is used to safely disconnect electrical power for maintenance or emergency shutdown in industrial and commercial applications. It is rated for single-phase, 240V AC circuits up to 100 A, and is suitable for indoor use in galvanized steel enclosures.

What are the specifications of the Siemens DTNF223 safety switch?

The Siemens DTNF223 is a non-fusible safety switch rated for 100 A, single phase, 240V AC. It features a galvanized steel enclosure for indoor use. The manufacturer part number is DTNF223, and it is produced by Siemens. This switch provides reliable disconnection for branch circuit protection.

Where to buy the Siemens DTNF223 safety switch worldwide?

You can source the Siemens DTNF223 safety switch through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine Siemens components for industrial applications.

How to install the Siemens DTNF223 non-fusible safety switch?

Install the Siemens DTNF223 safety switch in a dry indoor location on a sturdy surface. Ensure the circuit is de-energized before wiring. Connect line and load conductors per the terminal markings, and torque connections to manufacturer specifications. Always follow local electrical codes and use appropriate personal protective equipment.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens 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.

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