Siemens 3NJ69403FB00 Fuse monitoring

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BrandMore from Siemens
Delivered between 21.1.2026 and 5.2.2026
6 pieces in stock at supplier
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Product details

The Siemens 3NJ69403FB00 fuse monitoring device is an essential accessory for load break switches, enabling reliable monitoring of NH2 and NH3 fuses. This product is designed for use in AC networks and features a modular, compact design that ensures easy integration into existing systems. The fuse monitoring system stands out for its flexibility, as it can be combined with a variety of accessories to meet specific requirements. Installation is straightforward via a line-side plug connection, making the setup efficient and cost-effective. Additionally, the product allows for fuse replacement without voltage, enhancing safety during maintenance. Compliance with the international standard IEC EN 60947-3 ensures that the fuse monitoring device meets the highest standards, providing excellent personnel protection.

  • Modular and compact design for easy integration
  • Simple installation via line-side plug connection
  • Voltage-free fuse replacement for increased safety
  • Complies with IEC EN 60947-3 regulations
  • Flexibility through retrofittable accessories.

Key specifications

Item number
33748646

General information

Manufacturer
Siemens
Category
Fuses
Manufacturer no.
3NJ6940-3FB00
Release date
17.5.2023

Backup Features

Fuse type
NH-DIN fuse
voltage type
AC

Origin

Country of origin
Czech Republic

Sustainability

Manufacturer commitment
RE100, SBTi

Voluntary climate contribution

Manufacturer compensation
According to RE100, the manufacturer Siemens fully compensates for its energy consumption, leading to a reduction in emissions.
CO₂-Emission
Climate contribution

Scope of delivery

Items per sales unit
1 pcs.

30-day right of return if unopened
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Fuses» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.Voltima
    0 %
  • 12.Hager
    0.1 %
  • 13.Mersen
    0.2 %
  • 14.Siemens
    0.4 %
  • 15.Fusibles Lac
    0.9 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Siemens
    Not enough data
  • Beha Amprobe
    Not enough data
  • Ective
    Not enough data
  • Fusibles Lac
    Not enough data
  • Goobay
    Not enough data

Unfortunately, we don't have enough data for this category yet.

Return rate

How often is a product of this brand in the «Fuses» category returned?

Source: Digitec Galaxus
  • 12.Hager
    3.3 %
  • 13.Offgridtec
    4.6 %
  • 14.Tru Components
    4.8 %
  • 15.Steffen
    5.2 %
  • 16.Siemens
    6.6 %
Source: Digitec Galaxus