Siemens 20A Cartridge Fuse, 10 x 38 mm aR Series SITOR Semiconductor Protection Fuse 3NC1020

Siemens 3NC1020 Cartridge Fuse is a high-quality 20A fuse designed for semiconductor protection within industrial and electrical applications. This fuse belongs to the SITOR series, featuring a cylindrical 10 x 38 mm form factor that integrates seamlessly into semiconductor contactors, solid-state electronic relays, and motor softstarters.

Operating under the aR class for full-range semiconductor protection, the fuse is especially effective in safeguarding sensitive components such as converters with fuses in the DC intermediate circuits and UPS systems. It supports motor equipment up to 100A, making it essential for robust industrial, automation, and electrical control systems.

Manufactured to IEC 60269-4 standards and approved by CSA, the 3NC1020 guarantees compliance with international safety and quality norms. The compact design with a 10 mm diameter and 38 mm overall length ensures compatibility with a wide range of fuse holders and electrical configurations where reliability is critical.

This fuse is made in India and serves various industrial sectors including manufacturing, automation, power distribution, and electronic circuit protection appliances. Designed for semiconductor contactors, electronic relays, and converters.

Operating class aR provides full-range semiconductor protection. Suitable for protecting UPS and softstarters up to 100A motor control. Complies with IEC 60269-4 standard for reliable performance. Constructed as part of the SITOR cylindrical fuse series.

Features a 10 mm diameter and 38 mm overall length. CSA approved for safety and quality assurance. Manufactured in India ensuring adherence to quality standards. Explore more Siemens electrical protection components at EnvMart for industrial and commercial applications.