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MERSEN FUSE 6,921 CP GR 14.51 0008 FR14GR69V8T

MERSEN FUSE 6,921 CP GR 14.51 0008 FR14GR69V8T

The FR14GR69V8T offers reliable circuit protection for demanding industrial and power distribution applications, featuring high-speed operation and a gR fuse characteristic to ensure rapid response to both overloads and short-circuit events.

SKU: FR14GR69V8TAlt SKU: FR14GR69V8TMPN: G1017181
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List Price £14.50 ex VAT
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Manufacturer Lead Time

Sold in packs of 10

£14.50

Why Choose the Mersen FR14GR69V8T Protistor® High-Speed Fuse?

The Mersen FR14GR69V8T is a premium Protistor® high-speed semiconductor protection fuse engineered to provide rapid, full-range protection for sensitive power electronic equipment. Designed in accordance with IEC 60269-1 and IEC 60269-4, this cylindrical gR class fuse offers exceptional protection against both overloads and short circuits, helping safeguard valuable semiconductor components while reducing downtime.

Part of the trusted Mersen Protistor® 14 × 51 mm gR series, the FR14GR69V8T is ideal for protecting IGBTs, SCRs, thyristors and rectifier assemblies used in industrial automation, UPS systems, motor drives and power converters. This version incorporates an integrated striker for remote indication and easier fault monitoring.

With an 8 A current rating, 690 V AC IEC / 700 V AC UL voltage rating and a gR operating characteristic, the FR14GR69V8T delivers dependable semiconductor protection in demanding industrial environments.

Key Advantages

  • High-speed gR full-range semiconductor protection fuse.
  • 8 A current rating for sensitive power electronic equipment.
  • 690 V AC IEC / 700 V AC UL rated voltage.
  • Integrated striker indicator for remote fuse status monitoring.
  • 160 kA breaking capacity for excellent fault interruption.
  • Compact 14 × 51 mm cylindrical design.

Key Features

  • Mersen Protistor® semiconductor protection fuse.
  • Model: FR14GR69V8T.
  • Rated current: 8 A.
  • Rated voltage: 690 V AC IEC / 700 V AC UL.
  • gR full-range operating characteristic.
  • Integrated striker indication.
  • 14 × 51 mm cylindrical fuse.
  • Current limiting design.
  • RoHS compliant.

Reliable Protection for Power Electronics

Full-range gR semiconductor fuses are specifically designed to protect sensitive electronic components against both overload and short-circuit conditions. Their extremely fast operating characteristics reduce thermal stress and fault energy, helping maximise equipment reliability and minimise maintenance costs.

The Mersen Protistor® range is widely specified for industrial automation, renewable energy, UPS installations and motor drive systems where dependable semiconductor protection is essential.

Typical Applications

  • Variable speed drives.
  • Industrial inverters.
  • UPS systems.
  • Motor drives.
  • Power converters.
  • Semiconductor power supplies.
  • Industrial automation equipment.
  • Renewable energy systems.

Technical Specifications

Item number G1017181
Catalogue No FR14GR69V8T
Description High-Speed Cylindrical Fuse Protistor® Size 14x51 gR 690VAC IEC 8A With Striker
EAN/UPC Code 3605340506785
Rated voltage AC IEC 690 V
Ampere Rating 8 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic gR
Fuse Size 14x51
Mounting Clip
Clearing I2t At Rated Voltage 40 A²s
Melting I2t 4.3 A²s
AC Max I.R./Breaking Capacity I1: 160 kA
Indication System Yes
Indication System Type Striker
Connection/Terminal Material Silver-Plated Copper
Connection/Terminal Type Ferrule
Product Diameter 14.3 mm
Product Length 51 mm
Sell Pack Quantity 10 EA
Sell Pack Weight 0.2 kg
Sell Pack Width 75 mm
Sell Pack Length 104 mm
Sell Pack Height 16 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.02 kg
Power Dissipation at Rated Current Value 2.25 W
HS Code 85361010
Country of Manufacture Tunisia
Fuse Type Semiconductor
Fuse Size 14x51 mm
Fuse Class gR
Voltage 690 V

Frequently Asked Questions

What is the Mersen FR14GR69V8T used for?

It is a high-speed semiconductor fuse designed to provide full-range protection for power electronic devices including IGBTs, thyristors, rectifiers and inverter circuits.

What is the current rating of this fuse?

The FR14GR69V8T has a rated current of 8 A.

What voltage is this fuse rated for?

The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).

What does the striker do?

The integrated striker provides mechanical indication when the fuse operates and can be used with compatible equipment for remote signalling.

Which applications commonly use this fuse?

This fuse is commonly installed in variable speed drives, UPS systems, industrial inverters, power converters and semiconductor protection circuits.

Trusted for Semiconductor Protection Worldwide

Mersen Protistor® semiconductor fuses are trusted by OEMs, machine builders and automation engineers worldwide for their exceptional fault interruption performance, low let-through energy and reliable protection of critical power electronic equipment.

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