SIEMENS 3NA6 240-6 690V 200A

Siemens NH Fuse Link 200A 690V 3NA6 240-6

Description

The Siemens 3NA6 240-6 is a high-performance NH (Niederspannungs-Hochleistungs) fuse link designed for robust protection in industrial low-voltage systems. It provides reliable defense against overloads and short circuits, ensuring the safety of your equipment and personnel. This size 2 fuse is rated for 200A and 690V AC, making it suitable for a wide range of demanding applications.

Specifications

• Manufacturer: Siemens
• Type Number: 3NA6 240-6
• Rated Current: 200 A
• Rated Voltage: 690V AC
• Fuse Size: NH2 (Gr. 2)
• Fuse Characteristic: gG (General purpose line protection)
• Breaking Capacity: 120 kA
• Features: Front indicator

Label Info

• Brand: SIEMENS
• Model: 3NA6 240-6
• Voltage: 690V
• Current: 200A
• Size: Gr. 2

Application

This fuse link is ideal for use in industrial switchgear, distribution boards, and machine control panels for the protection of cables, power lines, and general non-inductive or low-inductive loads.

Country of Origin

Made in Greece (GR).

CO2 Impact

By choosing this pre-owned fuse, you are preventing the emission of approximately 20 kg of CO2. This saving is equivalent to the energy needed to charge a smartphone over 2,400 times or driving a car for 100 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What does the ‘gG’ characteristic mean for this fuse?

The ‘gG’ characteristic indicates a general-purpose fuse for line and cable protection. It is designed to operate across the full range of overcurrents, from small overloads to high short-circuits, making it a versatile choice for many standard applications.

Is this 3NA6 240-6 fuse suitable for protecting semiconductor devices?

No, ‘gG’ fuses are not typically fast enough to protect sensitive semiconductor devices like thyristors or IGBTs. For semiconductor protection, you should use fuses with an ‘aR’ or ‘gR’ characteristic, which are specifically designed for ultra-rapid operation.

What is the significance of the red indicator on the front of the fuse?

The red indicator is a trip indicator. When the fuse element melts due to an overcurrent, a small spring-loaded pin is released, making the red indicator visible. This provides a clear and immediate visual confirmation that the fuse has operated and needs to be replaced.

Last Update: Friday, March 13, 2026

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