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Siemens 3NC1020-0MK SITOR Cylindrical Fuse Link - 10x38mm, 20A gR

Siemens 3NC1020-0MK SITOR cylindrical fuse link, 10x38mm, 20A, gR.

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ManufacturerSiemens

Part number3NC1020-0MK

Type SITOR cylindrical fuse link

Size 10 x 38 mm

Rated Current (In) 20 A

Breaking Capacity Class gR

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SITOR fuse link 10x38mm dimensions 20A rating gR class 690V AC / 250V DC Rapid acting

Product description

The Siemens 3NC1020-0MK is a SITOR cylindrical fuse link designed for protecting power semiconductor devices. This model measures 10 x 38 mm and has a rated current of 20 A. It is classified with a gR (rapid) breaking capacity, specifically suited for the fast-acting protection required by sensitive electronic components.

This fuse link is rated for a maximum AC voltage of 690 V and a DC voltage of 250 V. The gR classification ensures very quick interruption of overcurrents, minimizing damage to protected equipment such as thyristors and diodes in variable speed drives and other power electronic applications.

Stanlo Automation, a veteran-owned company, offers the Siemens 3NC1020-0MK SITOR fuse link. We specialize in providing reliable surplus industrial automation parts, enabling businesses to maintain their systems efficiently and cost-effectively.

Technical specifications

Type	SITOR cylindrical fuse link
Size	10 x 38 mm
Rated Current (In)	20 A
Breaking Capacity Class	gR
Rated Voltage (Un AC)	690 V
Rated Voltage (Un DC)	250 V

Common applications

Semiconductor protection

Variable speed drives

Inverters

Converters

Power electronics

DC circuits

Motor control

Compatible systems

Fuse holders for 10x38mm cylindrical fuse links

Also known as

3NC10200MK Siemens 10x38mm fuse 20A gR fuse

Replaces / compatible with

This Siemens 3NC1020-0MK is designed for the protection of semiconductor devices and is compatible with fuse holders for 10x38mm cylindrical fuse links. Always consult Siemens specifications for precise application suitability.

Technical note

Expert tip

The 690V AC rating makes this fuse suitable for a wide range of industrial applications, including those powered by higher voltage AC systems.

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Frequently asked questions

What does the 'gR' rating signify for the Siemens 3NC1020-0MK fuse?

The 'gR' rating stands for 'rapid' or 'semi-fast' acting and indicates that the Siemens 3NC1020-0MK fuse link is designed for very quick interruption of overcurrents. This is essential for protecting sensitive semiconductor devices from damage caused by fast fault currents.