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Product details

Mersen cylindrical fuse insert FR8AM40V4

Manufacturer: Mersen
Description: Cylindrical fuse insert aM 8x31 4A
Type: FR8AM40V4
Design: Ceramic fuse
Size: 8x32 mm
Voltage type: AC
Rated current: 4 A
Rated voltage: 400 V
Operating class: aM (partial device protection)
Operating frequency: 50 Hz
Tripping characteristic: other
Power loss at rated current: 0.26 W

Mersen cylindrical fuse insert FR8AM40V4: additional details
Mersen aM and gG fuse inserts cover a wide range of different sizes and current ratings for 400, 500, and 690 VAC. They are used for the protection of electrical distribution circuits and industrial systems. A large portion of the current ratings is available in sizes 8x31 and 10x38 optionally with a signaling device, and in sizes 14x51 and 22x58 optionally with a striker pin for triggering an auxiliary contact. All cylindrical fuse inserts consist of a ceramic body and silver-plated contacts. Cylindrical fuse inserts of operating class aM are partial area fuses that protect electrical devices from destruction due to excessively high short circuits through their strong current limitation and low thermal let-through values. They interrupt currents greater than 6.3 x ln up to the maximum breaking capacity. Cylindrical fuse inserts aM are preferably used to protect systems and switching devices in motor circuits. When selecting the fuse inserts, the rated fuse current can be chosen to be equal to the motor rated current. Our technology and manufacturing process ensure highly reliable technical performance.

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 %
  • 13.Hager
    0.1 %
  • 13.Mersen
    0.1 %
  • 15.Siemens
    0.2 %
  • 16.Fusibles Lac
    1.2 %

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
  • Mersen
    Not enough data
  • Beha Amprobe
    Not enough data
  • Daier
    Not enough data
  • Ective
    Not enough data
  • ESKA
    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
  • 1.Lampa
    0 %
  • 1.Littelfuse
    0 %
  • 5.Mersen
    0.2 %
  • 6.Perel
    0.5 %
  • 7.Goobay
    0.7 %
Source: Digitec Galaxus