Product Description

Siemens 3NWTSK315 HRC Fuse – 315A, 415V AC, Size B3, Central Tag

The Siemens 3NWTSK315 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 fuse is rated at 315 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 3NWTSK315 belongs to the Siemens 3NW BS HRC fuse range for low-voltage electrical protection. The 3NW family is designed for applications requiring dependable interruption of overload and short-circuit currents within the specified fuse ratings. Siemens-related technical documentation identifies the 3NW series with 415 V AC / 240 V DC ratings and 80 kA AC breaking capacity.

315 A Rated Current

The exact 3NWTSK315 has a rated current of 315 A.

The 315 A rating should be matched with the protected circuit, conductor capacity, equipment rating and overall protection-coordination requirements.

The correct fuse current rating is important to ensure that the circuit receives appropriate overload and short-circuit protection.

415 V AC Rated Voltage

The 3NWTSK315 is rated for 415 V AC.

This makes it suitable for compatible low-voltage AC electrical systems operating within the specified voltage rating.

The system voltage should always be verified before selecting a replacement fuse.

80 kA Breaking Capacity

The exact fuse has an 80 kA breaking capacity.

A high breaking capacity allows the HRC fuse to interrupt substantial prospective fault currents within its rated operating conditions.

This characteristic is particularly useful in industrial and electrical distribution systems where available short-circuit current can be high.

Size B3

The 3NWTSK315 is identified as Size B3.

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

When replacing an existing fuse, the original physical dimensions and mounting configuration should therefore be checked along with the electrical ratings.

Central Tag Configuration

The 3NWTSK315 uses a central tag configuration.

The tag arrangement determines how the fuse link fits into the corresponding fuse holder or mounting system.

This is an important selection parameter when replacing a BS-type HRC fuse, because the same current rating alone does not guarantee mechanical compatibility.

GG Operating Class

The 3NWTSK315 is specified with operating class GG.

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 equipment, load characteristics, fault level and protection coordination of the installation.

High Rupturing Capacity Protection

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

The 3NWTSK315 combines:

• 315 A rated current

• 415 V AC rated voltage

• 80 kA breaking capacity

• Size B3

• Central tag

• GG operating class

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

Suitable for Industrial Electrical Systems

The 3NWTSK315 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 the system voltage, load current, prospective short-circuit current and protection-coordination requirements.

Fuse Replacement Applications

The 3NWTSK315 can be used as a replacement where the existing fuse requires the same or compatible:

• Rated current

• Rated voltage

• Breaking capacity

• Fuse size

• Tag configuration

• Operating class

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

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 3NWTSK315 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 3NWTSK315

• 315 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

Benefits

• 315 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.

• Siemens product: Provides a standardized industrial fuse solution.

Why Choose Siemens 3NWTSK315?

The Siemens 3NWTSK315 is a 315 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 3NWTSK315?

The 3NWTSK315 is a Siemens low-voltage HRC fuse (BS) rated at 315 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 3NWTSK315 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 3NWTSK315 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 315 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 3NWTSK315 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.