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Siemens 3NC1025 SITOR Cylindrical Fuse Link - 10x38mm, 25A aR

Siemens 3NC1025 SITOR cylindrical fuse link, 10x38mm, 25A, aR.

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ManufacturerSiemens

Part number3NC1025

Type SITOR cylindrical fuse link

Size 10 x 38 mm

Rated Current (In) 25 A

Breaking Capacity Class aR

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SITOR fuse link 10x38mm dimensions 25A rating aR class 600V AC / 700V DC UL DC rated High-speed protection

Product description

The Siemens 3NC1025 is a SITOR cylindrical fuse link with a 10 x 38 mm footprint, designed for the protection of semiconductor devices. It has a rated current of 25 A and an aR (asynchronous rectifier) breaking capacity class, making it suitable for high-speed interruption of fault currents in power electronic circuits.

This fuse link operates at a maximum AC voltage of 600 V and a DC voltage of 700 V. It is also rated for DC applications according to UL standards, providing enhanced flexibility for mixed AC/DC power systems. The aR classification ensures it can protect sensitive components like thyristors and diodes from damaging surges.

Stanlo Automation, a veteran-owned business, supplies the Siemens 3NC1025 SITOR fuse link. We are committed to providing surplus industrial automation parts to support your maintenance, repair, and operational needs, offering reliable solutions at competitive prices.

Technical specifications

Type	SITOR cylindrical fuse link
Size	10 x 38 mm
Rated Current (In)	25 A
Breaking Capacity Class	aR
Rated Voltage (Un AC)	600 V
Rated Voltage (Un DC)	700 V
DC Rating	According to UL

Common applications

Semiconductor protection

Power electronics

Inverters

Converters

Rectifiers

DC power supplies

Motor drives

AC drives

Compatible systems

Fuse holders for 10x38mm cylindrical fuse links

Also known as

3NC10250MK Siemens 10x38 fuse 25A aR fuse

Replaces / compatible with

This Siemens 3NC1025 is designed for semiconductor protection and is compatible with fuse holders for 10x38mm cylindrical fuse links. Always check Siemens specifications for exact application compatibility.

Technical note

Expert tip

The 700V DC rating provides a robust safety margin for applications requiring protection in higher DC voltage systems.

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Frequently asked questions

What type of protection does the Siemens 3NC1025 aR fuse offer?

The Siemens 3NC1025 fuse link features an aR (asynchronous rectifier) rating, signifying its ability to provide very fast protection for semiconductor devices. It is designed to interrupt fault currents rapidly to prevent damage to sensitive components.