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Siemens SITOR Semiconductor Protection Cartridge Fuse 3A, 10 x 38 mm, 600/700V AC, aR Category, SITOR Series 3NC1003

Category Electrical Fuse Brand Siemens Condition New

Specifications

Country of Origin India
Voltage 600, 700V ac
Diameter 10mm
Brand Siemens
Model 3NC1003
Overall Length 38mm
Current Rating 3A
Series SITOR
Standards/Approvals CSA
Fuse Size 10 x 38 mm
Application Category aR
Operating Class aR (full-range semiconductor protection)

Key Features

  • Cartridge fuse with 3A current rating for reliable overcurrent protection.
  • SITOR series fuse designed for semiconductor device protection.
  • Full-range, aR operating class suitable for safeguarding electronic relays, solid state devices, and converters.
  • Suitable for input and DC intermediate circuits in UPS systems and softstarters up to 100A.
  • Compact cylindrical format with 10mm diameter and 38mm overall length for panel mounting.
  • Complies with IEC 60269-4 and CSA standards for global usage.
  • Manufactured in India with high stability and operational safety for demanding environments.

Product Description

The Siemens SITOR Semiconductor Protection Cartridge Fuse 3NC1003 is a robust 3A fuse specifically engineered for safeguarding sensitive semiconductor components within industrial and electrical installations. Featuring a full-range aR operating class, it provides reliable overcurrent protection for devices such as semiconductor contactors, electronic relays, converters, and UPS systems. Its compact cylindrical design, with a 10 x 38 mm form factor, enables easy integration into standard fuse holders and distribution panels.

This fuse operates at a high voltage range of 600 to 700V AC, ensuring compatibility with a variety of advanced power circuits, including DC intermediate circuits and softstarters for motors up to 100A. The SITOR series is distinguished for its high interruption capacity and fast response characteristics, making it ideal for protecting electronic circuits from damage caused by surges, overloads, and short circuits. The aR category indicates suitability for semiconductor device protection, emphasizing its role in preventing costly downtime and equipment failures.

The 3NC1003 fuse is manufactured to meet stringent international standards, including IEC 60269-4 and CSA approvals. Its 10 mm diameter and 38 mm length allow for secure mounting while ensuring low thermal resistance and stable operational performance. The product is globally recognized for its quality, reliability, and safety, suitable for installations requiring consistent protection of high-value electronic assets.

Common use cases include protecting solid-state relays, input circuits, DC buses in power converters, and AC distribution in UPS systems. The Siemens SITOR fuse is also deployed in advanced industrial environments, commercial electrical panels, and manufacturing facilities where semiconductor-based control requires precise and durable protection solutions.

Browse more SITOR fuses and Siemens protection solutions in the Electrical Fuse category for comprehensive power distribution and circuit safety options.

Siemens SITOR Semiconductor Protection Cartridge Fuse 3A, 10 x 38 mm, 600/700V AC, aR Category, SITOR Series 3NC1003
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Frequently Asked Questions

The Siemens SITOR Semiconductor Protection Cartridge Fuse has a current rating of 3A.

This fuse operates at a voltage range of 600 to 700V AC.

The fuse has a diameter of 10 mm and an overall length of 38 mm.

It belongs to the aR application category, which is suitable for full-range semiconductor protection.

The fuse complies with IEC 60269-4 and CSA standards for global usage.

It is designed to protect semiconductor devices such as electronic relays, solid-state devices, and converters.

The aR operating class indicates that this fuse is suitable for semiconductor device protection, preventing damage from overloads and surges.

This fuse is manufactured in India.

Common use cases include protecting solid-state relays, input circuits, and DC buses in power converters.

The SITOR series is known for its high interruption capacity and fast response characteristics.

Its compact cylindrical design allows for easy integration into standard fuse holders and distribution panels.

It is suitable for use in input and DC intermediate circuits in UPS systems and softstarters up to 100A.

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