Home › Manufacturers › Siemens › 3NA3144-6

Siemens

Siemens 3NA3144-6 NH1 Fuse Element - 250A gG

Siemens 3NA3144-6 NH1 LV HRC fuse element, 250A, 690V AC.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number3NA3144-6

Part Number 3NA3144-6

Manufacturer Siemens

Type LV HRC fuse element

Size NH1

Get a price for 3NA3144-6

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

LV HRC fuse element NH1 size 250A rated current gG breaking class 690V AC rating Front indicator Live grip lugs

Product description

The Siemens 3NA3144-6 is a high-capacity Low Voltage High Rupturing Capacity (LV HRC) fuse element, part of the NH1 series. It is designed to provide reliable protection for electrical systems with a rated current of 250 Amperes (A) and a gG breaking class, suitable for general industrial applications. This fuse element is rated for 690 Volts AC and 440 Volts DC, featuring a front indicator for easy status checking and live grip lugs for safe operation and maintenance.

This fuse element is extensively used in industrial power distribution systems, large motor circuits, and high-power machinery where robust protection against overcurrents and short circuits is essential. It plays a vital role in maintaining the safety and operational continuity of equipment in demanding sectors such as heavy manufacturing, utilities, and large-scale infrastructure projects.

Stanlo Automation, a veteran-owned business specializing in surplus industrial automation parts, offers the Siemens 3NA3144-6. We are committed to providing quality, tested surplus components, ensuring you can efficiently source the parts needed to keep your industrial operations running without interruption.

Technical specifications

Part Number	3NA3144-6
Manufacturer	Siemens
Type	LV HRC fuse element
Size	NH1
Rated Current (In)	250 A
Breaking Class	gG
Rated Voltage AC (Un AC)	690 V
Rated Voltage DC (Un DC)	440 V
Indicator	Front indicator
Terminal Type	Live grip lugs

Common applications

Industrial power distribution

Large motor protection

High power machinery

Electrical infrastructure

Overcurrent protection

Fault current interruption

Compatible systems

Designed for use with NH1 fuse holders and switch-disconnectors, ensuring reliable integration into electrical systems.

Also known as

Siemens NH1 250A fuse 3NA3144-6 fuse Siemens 690V HRC fuse NH1 250A gG

Replaces / compatible with

The Siemens 3NA3144-6 is a standard NH1 fuse element designed as a direct replacement for Siemens NH1 fuses with identical electrical specifications. Always verify ratings before replacement.

Technical note

Expert tip

The front indicator on the 3NA3144-6 provides a visual indication of fuse operation, simplifying fault diagnosis and maintenance procedures.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

What is the maximum AC voltage rating for the Siemens 3NA3144-6 fuse?

The Siemens 3NA3144-6 fuse element has a maximum AC voltage rating of 690 Volts. It is also rated for 440 Volts DC and is designed for general-purpose industrial protection.