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Siemens 3NA3144 LV HRC Fuse Element NH1

Siemens 3NA3144 NH1 LV HRC fuse element, 250A, 500V AC

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ManufacturerSiemens

Part number3NA3144

Type LV HRC fuse element

Size NH1

Rated Current (In) 250 A

Classification gG

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Veteran-owned

CAGE: 9NK75

NH1 size 250A rating gG classification 500V AC / 440V DC Front fuse blown indicator Live grip lugs for safe handling

Product description

The Siemens 3NA3144 is a Low Voltage High Rupturing Capacity (LV HRC) fuse element. It is a size NH1 fuse with a rated current of 250 Amperes (In) and a general-purpose (gG) classification. This fuse is designed for AC applications up to 500 Volts and DC applications up to 440 Volts.

This fuse element features a front indicator to clearly signal when the fuse has blown, aiding in quick fault identification. It also includes live grip lugs for safe and easy handling during installation or replacement, making it suitable for industrial switchgear and protection applications.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3NA3144 fuse element. Ensure your electrical systems are protected with reliable, quality components sourced from Stanlo Automation.

Technical specifications

Type	LV HRC fuse element
Size	NH1
Rated Current (In)	250 A
Classification	gG
Rated Voltage AC (Un AC)	500 V
Rated Voltage DC (Un DC)	440 V
Indicator	Front indicator
Lugs	Live grip lugs

Common applications

Industrial switchgear

Motor protection

Power distribution panels

Electrical safety

Overcurrent protection

Compatible systems

NH fuse holders and switch disconnectors rated for 500V AC and 250A

Also known as

Siemens NH1 250A fuse 3NA3144-1 LV HRC NH1 250A

Replaces / compatible with

This NH1 fuse element is designed for use in appropriate fuse holders and switch disconnectors that accept this size and rating. Always consult your equipment's manual for compatibility.

Technical note

Expert tip

Ensure the fuse holder is rated for 500V AC and 250A to safely accommodate the Siemens 3NA3144.

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Frequently asked questions

What is the purpose of the front indicator on the Siemens 3NA3144 fuse element?

The front indicator on the Siemens 3NA3144 fuse element visually signals when the fuse has operated (blown). This feature allows for quick identification of a fault, reducing downtime and simplifying maintenance procedures.