Product Description

Siemens 3NW60121 Cylindrical Fuse – 32A, 400V AC, 10 × 38 mm, gG

The Siemens 3NW60121 is a SENTRON cylindrical fuse link designed for low-voltage electrical protection applications. The exact article is rated at 32 A, 400 V AC, uses a 10 × 38 mm cylindrical format and has a gG operating class. Siemens currently lists the product as an active product.

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

Siemens 3NW60121 Cylindrical Fuse

The 3NW60121 belongs to the Siemens SENTRON cylindrical fuse link range. Siemens describes this 3NW cylindrical fuse system for selective line protection, with compatible cylindrical fuse links and fuse holders intended for industrial plants.

The fuse link is intended to provide protection against overload and short-circuit conditions within its specified electrical ratings.

32 A Rated Current

The exact 3NW60121 has a rated current of 32 A. Siemens' official datasheet confirms the 32 A operating current rating.

The 32 A rating should be selected according to the protected circuit, conductor capacity, equipment rating and overall protection-coordination requirements.

400 V AC Rated Voltage

The 3NW60121 is rated for 400 V AC. Siemens' current product description specifically identifies the article as a 10 × 38 mm, 32 A, gG cylindrical fuse with Un AC: 400 V.

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

10 × 38 mm Fuse Size

The exact 3NW60121 uses a 10 × 38 mm cylindrical fuse format. This physical dimension is confirmed by Siemens' current product documentation.

The fuse dimensions must match the corresponding fuse holder or fuse-disconnector arrangement.

For replacement applications, both the physical size and electrical ratings should be checked.

gG Operating Class

The 3NW60121 has a gG operating class. Siemens identifies the exact product as a cylindrical fuse link with gG characteristics.

The gG category is used for general-purpose protection against overload and short-circuit conditions in suitable electrical circuits.

The final fuse selection should still be based on the load characteristics and protection requirements of the installation.

Cylindrical Fuse for Selective Line Protection

Siemens describes its 3NW cylindrical fuse system as suitable for selective line protection. The compatible cylindrical fuse links and holders are intended for use in industrial plants.

This makes the 3NW60121 relevant for industrial distribution and circuit-protection applications where coordinated protection is required.

No Striker

The official Siemens datasheet specifies that the 3NW60121 does not have a striker.

This means the fuse does not incorporate a striker mechanism for operating an external indicator or associated mechanical switching function.

Mounting Position

Siemens specifies the mounting position for the 3NW60121 as any position, preferably vertical.

The installation should also follow the recommendations of the selected fuse holder and electrical assembly.

Power Dissipation

Siemens lists approximately 2.8 W power loss for the 3NW60121 and approximately 3 W at the rated current in hot operating condition per pole.

This information can be useful when evaluating heat generation and thermal conditions inside enclosed electrical panels.

Compact Cylindrical Fuse Design

The 10 × 38 mm format provides a compact fuse solution for compatible electrical protection assemblies.

Siemens lists the exact article with a net weight of approximately 9 g.

Its compact construction is useful for space-conscious electrical panels and distribution assemblies.

Suitable for Industrial Electrical Systems

The 3NW60121 can be considered for compatible applications such as:

• Industrial electrical panels

• Low-voltage distribution

• Selective line protection

• Feeder protection

• Electrical equipment protection

• Machinery protection

• Industrial control panels

• Fuse replacement applications

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

Fuse Replacement Applications

The 3NW60121 can be used as a replacement where the existing fuse requires compatible:

• Rated current

• Rated voltage

• Fuse size

• Operating class

• Fuse-holder compatibility

A replacement fuse should not be selected solely because the current rating is the same. Physical dimensions and voltage rating must also match.

Compatible Fuse Holder Selection

Because the 3NW60121 is a 10 × 38 mm cylindrical fuse, the corresponding fuse holder must be suitable for this physical format and the applicable electrical ratings.

Siemens' cylindrical fuse system includes compatible fuse holders and fuse-disconnector solutions for its 3NW fuse links.

Standardized Siemens SENTRON Solution

The 3NW60121 is part of the Siemens SENTRON cylindrical fuse-link family. Siemens' current Industry Mall lists it within the Cylindrical Fuse Links and Cylindrical Fuse Holders product family.

This makes the article relevant for standardized fuse protection and replacement applications using compatible Siemens cylindrical fuse systems.

Product Status and Packaging

Siemens currently lists 3NW6012-1, corresponding to the market-facing article 3NW60121, as PLM PM300: Active Product. The Industry Mall lists a quantity unit of 1 piece, packaging quantity of 1, and a minimum order quantity of 20 pieces.

This is useful for individual product identification while also indicating the commercial ordering requirement.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 3NW60121 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 SENTRON 3NW cylindrical fuse link

• Article number 3NW60121

• 32 A rated current

• 400 V AC rated voltage

• 10 × 38 mm fuse size

• gG operating class

• No striker

• Mounting position: any, preferably vertical

• Approx. 9 g net weight

• Approx. 2.8 W power loss

• Approx. 3 W power loss at rated current in hot operating condition per pole

• Active Siemens product

• Quantity unit: 1 piece

• Minimum order quantity: 20 pieces

Benefits

• 32 A rating: Suitable for compatible circuits requiring 32 A fuse protection.

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

• 10 × 38 mm format: Provides a compact cylindrical fuse solution.

• gG protection: Suitable for general-purpose overload and short-circuit protection.

• Selective line protection: Relevant for coordinated industrial electrical protection.

• Compact construction: Useful for space-conscious panel designs.

• Low weight: Approximately 9 g according to Siemens technical data.

• Siemens SENTRON design: Provides a standardized cylindrical fuse solution.

Why Choose Siemens 3NW60121?

The Siemens 3NW60121 is a 32 A, 400 V AC, 10 × 38 mm cylindrical fuse link with gG operating class, designed for compatible Siemens SENTRON 3NW cylindrical fuse systems and selective line-protection applications.

It is suitable for customers looking to buy or source Siemens cylindrical fuse links for industrial electrical distribution, 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 3NW60121?

The 3NW60121 is a Siemens SENTRON cylindrical fuse link rated at 32 A, with a 10 × 38 mm size and 400 V AC operating voltage.

2. What is the operating class?

The operating class is gG.

3. What is the fuse size?

The exact fuse size is 10 × 38 mm.

4. What is the rated current?

The rated current is 32 A.

5. What is the rated voltage?

The rated operating voltage is 400 V AC.

6. Does it have a striker?

No. Siemens specifies no striker for the 3NW60121.

7. What is the approximate power loss?

Siemens lists approximately 2.8 W, increasing to approximately 3 W at rated current in hot operating condition per pole.

8. What is the recommended mounting position?

It can be installed in any position, preferably vertical.

9. What is the minimum order quantity?

Siemens' current Industry Mall lists a minimum order quantity of 20 pieces, while the quantity unit is one piece.

10. Where can I buy Siemens 3NW60121 in India?

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