Product Description

Siemens 3NWTSK250 HRC Fuse – 250A, 415V AC, Size B3, Central Tag

The Siemens 3NWTSK250 is a low-voltage HRC fuse (BS) from the Siemens 3NW series, designed for overload and short-circuit protection in compatible low-voltage electrical systems. The exact product is rated at 250 A, 415 V AC, with an 80 kA breaking capacity, Size B3, GG operating class, and a central tag configuration.

For SB Smart, this product is best positioned as a Siemens industrial electrical protection component for supply, procurement, replacement and maintenance requirements.

Siemens 3NW HRC Fuse

The 3NWTSK250 belongs to the Siemens 3NW BS HRC fuse range for low-voltage electrical protection. Siemens documentation for the 3NW family specifies 415 V AC / 240 V DC operation and up to 80 kA AC breaking capacity.

The fuse is designed to interrupt overload and short-circuit currents within its specified electrical ratings, making it suitable for compatible industrial and distribution applications.

250 A Rated Current

The exact 3NWTSK250 has a rated current of 250 A.

The 250 A rating should be selected according to the protected circuit, conductor capacity, equipment requirements and the overall protection-coordination design.

415 V AC Rated Voltage

The 3NWTSK250 is rated for 415 V AC. Product specifications also identify the Siemens 3NW family with 240 V DC service capability where applicable.

The system voltage should always be checked before selecting or replacing the fuse.

80 kA Breaking Capacity

The exact 3NWTSK250 has an 80 kA breaking capacity.

A high breaking capacity enables the HRC fuse to interrupt substantial prospective fault currents within its specified operating conditions, which is important in industrial and distribution systems.

Size B3

The 3NWTSK250 is identified as Size B3 in Siemens-related product documentation.

The physical fuse size must match the corresponding fuse base, holder or switch-fuse arrangement.

When replacing an existing fuse, both the electrical ratings and the physical dimensions should be verified.

Central Tag Configuration

The 3NWTSK250 uses a central tag configuration. The product listing and Siemens 3NW documentation identify the TSK250 article within the central-tag range.

The tag configuration is an important mechanical-selection parameter because the fuse must fit the corresponding fuse holder or mounting arrangement.

GG Operating Class

The 3NWTSK250 is identified as a GG operating-class fuse.

GG fuses are intended for general-purpose protection against overload and short-circuit conditions in compatible electrical circuits.

The fuse should still be selected according to the load, equipment and protection-coordination requirements of the installation.

HRC Fuse Protection

HRC means High Rupturing Capacity. An HRC fuse is designed to interrupt high fault currents safely within its specified breaking capacity.

The 3NWTSK250 combines:

• 250 A rated current

• 415 V AC rated voltage

• 80 kA breaking capacity

• Size B3

• Central tag

• GG operating class

These specifications make it suitable for compatible low-voltage industrial protection applications.

Suitable for Industrial Electrical Systems

The 3NWTSK250 can be considered for compatible applications such as:

• Industrial distribution panels

• Feeder circuits

• Electrical distribution systems

• Industrial control panels

• Power distribution equipment

• Machinery protection

• Commercial electrical installations

• Replacement of compatible BS HRC fuse links

Actual application should be based on system voltage, load current, prospective fault current and the complete protection design.

Fuse Replacement Applications

The 3NWTSK250 can be used as a replacement where the existing fuse requires compatible:

• Rated current

• Rated voltage

• Breaking capacity

• Fuse size

• Tag configuration

• Operating class

A replacement fuse should not be selected solely because the ampere rating is the same. Mechanical compatibility and electrical specifications should both be confirmed.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 3NWTSK250 is relevant for:

• Electrical panel builders

• Industrial buyers

• Maintenance departments

• Electrical contractors

• OEM equipment maintenance

• Electrical product dealers

• Replacement-part procurement

For SB Smart, the product is positioned around industrial electrical product supply and procurement, without claiming automation integration or automation-service work.

Key Features

• Siemens 3NW series HRC fuse

• Article number 3NWTSK250

• 250 A rated current

• 415 V AC rated voltage

• 80 kA breaking capacity

• Size B3

• Central tag

• GG operating class

• BS-type low-voltage HRC fuse

• Designed for overload and short-circuit protection

• Suitable for compatible fuse holders and fuse systems

• Suitable for industrial electrical applications

• Standard packing listed as 1 piece in Siemens price-list documentation.

Benefits

• 250 A rating: Suitable for compatible higher-current industrial circuits.

• 80 kA breaking capacity: Provides high fault-current interruption capability within the specified rating.

• 415 V AC rating: Suitable for compatible low-voltage AC systems.

• GG operating class: Provides general-purpose overload and short-circuit protection.

• Central tag: Supports compatibility with the corresponding central-tag mounting arrangement.

• B3 size: Suitable where the same physical fuse format is required.

• HRC construction: Designed for high fault-current interruption within its rated capacity.

• Standardized Siemens fuse: Suitable for compatible industrial electrical protection systems.

Why Choose Siemens 3NWTSK250?

The Siemens 3NWTSK250 is a 250 A, 415 V AC BS-type HRC fuse with 80 kA breaking capacity, Size B3, GG operating class and central tag.

It is a suitable choice for customers looking to buy or source Siemens HRC fuse links for industrial electrical distribution, feeder protection, panel maintenance and replacement requirements.

For SB Smart, this product is best presented as a Siemens industrial electrical protection component for supply and procurement across India.

Delivery Across India

SB Smart supplies Siemens industrial electrical products across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and other major Indian cities.

Major delivery locations include:

• Faridabad

• Delhi

• Gurgaon/Gurugram

• Delhi NCR

• Noida

• Greater Noida

• Haryana

• Punjab

• Mumbai

• Pune

• Ahmedabad

• Bengaluru

• Hyderabad

• Chennai

• Kolkata

• Jaipur

• Chandigarh

• Lucknow

• Indore

• Surat

• Vadodara

• Nagpur

• Coimbatore

• And other major cities across India

Frequently Asked Questions

1. What is Siemens 3NWTSK250?

The 3NWTSK250 is a Siemens low-voltage HRC fuse (BS) rated at 250 A and 415 V AC.

2. What is the breaking capacity?

The breaking capacity is 80 kA.

3. What is the fuse size?

The exact fuse is Size B3.

4. What type of tag does it have?

The 3NWTSK250 uses a central tag.

5. What is the operating class?

The operating class is GG.

6. What voltage is it rated for?

It is rated at 415 V AC.

7. Is it an HRC fuse?

Yes. The 3NWTSK250 is a low-voltage HRC fuse in the Siemens 3NW BS range.

8. Where can it be used?

It can be used in compatible industrial distribution, feeder, panel and equipment-protection applications.

9. Can I replace another 250 A HRC fuse with it?

Only when the voltage, breaking capacity, fuse size, tag configuration, operating class and fuse-holder compatibility are also suitable.

10. Where can I buy Siemens 3NWTSK250 in India?

SB Smart supplies Siemens industrial electrical products and HRC fuse links in India for industrial buyers, panel builders, maintenance requirements and replacement procurement.