DTNF221 The Siemens DTNF221 is a double throw safety switch designed for load transfer between power sources. It features a 30A ampacity and a 240V rating.
Mfr Part #:

DTNF221

Mfr Name: Siemens
Siemens
The Siemens DTNF221 is a double throw safety switch designed for load transfer between power sources. It features a 30A ampacity and a 240V rating.
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DTNF221 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accessory Type
Ambient Temperature
Material
Mounting Type
Number of Poles
SVHC Present
Type
Voltage Rating
Wattage

DTNF221 Description

Short technical summary and product information.

This Siemens DTNF221 is an enclosed safety switch designed for reliable operation in indoor environments. It is rated for a maximum ampacity of 30A and a voltage of 240V, with a supply frequency of 50/60 Hz.

 

The switch is suitable for load transfer between power sources, making it a critical component in power distribution systems. It features a double throw action and mechanical lugs for electrical connections.

 

Constructed from steel with a Type 1 enclosure, this safety switch is built for durability. It has a mechanical service life of typically 10,000 switching cycles and is surface mounted. The operating temperature range is from -20F to 120F.

 

Key specifications include 2 poles, a 2W wattage, and UL98 certification, ensuring compliance with industry standards.

DTNF221 Quick Information

Product Type: Safety Switch
Series: DTNF
Canonical Name: Siemens DTNF221 Double Throw Safety Switch
Subcategory: Safety Switch

DTNF221 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

DTNF221 Features

  • Double throw safety switch design.
  • Rated for 30A ampacity and 240V.
  • Suitable for load transfer applications.
  • Durable steel construction with Type 1 enclosure.
  • Indoor environmental conditions rated.

DTNF221 Applications

  • Load transfer between two power sources
  • Disconnect switch for maintenance safety
  • Indoor power distribution applications
  • Manual transfer switch for backup power

DTNF221 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the ampacity rating of the Siemens DTNF221 safety switch?

The ampacity rating is 30 A.

What is the voltage rating for the DTNF221 switch?

The voltage rating is 240 V.

How many poles does the Siemens DTNF221 have?

It has 2 poles.

What is the operating temperature range for this safety switch?

The ambient temperature range is -20 to 120 F.

What type of enclosure does the DTNF221 feature?

It features a Type 1 enclosure.

What is the typical mechanical service life of the DTNF221?

The typical mechanical service life is 10000 switching cycles.

What is the RoHS status of the DTNF221?

The RoHS status is RoHS3 Compliant.

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