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MERSEN FUSE 6,921 CP AR 14.51 0050 FR14AR69V50T

MPN: Z1056665

Alt. SKU: FR14AR69V50T

Special Price £15.41 £12.84 Regular Price £28.01

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MERSEN FUSE 6,921 CP AR 14.51 0050 FR14AR69V50T is available to buy in increments of 10
Free delivery on orders over £200

Why Choose the High-Speed Cylindrical Fuse Protistor® Size 14x51 aR 690VAC IEC 50A With Striker FR14AR69V50T?

Engineered for demanding industrial environments, this high-speed Protistor® fuse offers reliable protection for semiconductor devices, ensuring rapid interruption of overcurrents up to 690VAC. Its aR class design ensures excellent performance in short-circuit scenarios, safeguarding your critical equipment and reducing downtime risks.

The compact 14x51 mm size and integrated striker enable straightforward installation and easy fuse status indication, streamlining maintenance procedures. Tested to IEC standards and rated for 50A, the FR14AR69V50T provides dependable, efficient protection for advanced power electronic systems.

Product Code: FR14AR69V50T

Key Benefits

  • High-speed aR characteristic for effective semiconductor protection
  • Rated for 690VAC and 50A ensuring compatibility with industrial power systems
  • Integrated striker for clear and immediate fuse status indication
  • Compact 14x51 mm cylindrical design for easy installation in tight spaces
  • Silver-plated copper terminals provide excellent conductivity and durability
  • Ceramic body for high mechanical strength and thermal resistance
  • Tested to IEC standards guaranteeing reliable and safe operation

Compatibility

This fuse is compatible with IEC standard fuse holders designed for 14x51 mm cylindrical fuses. It is suitable for use in industrial semiconductor protection circuits, motor drives, and power electronic systems requiring a high breaking capacity and rapid fuse operation.

Applications

  • Protection of semiconductor devices such as thyristors and diodes
  • Industrial motor drives and inverters
  • Power electronic systems in manufacturing plants
  • Overcurrent protection in AC circuits up to 690V
  • General industrial electrical equipment requiring high-speed fuse protection

Technical Specifications

  • Item number: Z1056665
  • Catalogue No: FR14AR69V50T
  • Description: High-Speed Cylindrical Fuse Protistor® Size 14x51 aR 690VAC IEC 50A With Striker
  • EAN/UPC Code: 3605340592795
  • Rated voltage AC IEC: 690 V
  • Ampere Rating: 50 A
  • RoHS Compliant: Yes
  • AC or DC: AC
  • Speed/Characteristic: aR
  • Fuse Size: 14x51
  • Mounting: Clip
  • Clearing I2t At Rated Voltage: 1500 A²s
  • Melting I2t: 241.1 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: 73 mm
  • Sell Pack Length: 107 mm
  • Sell Pack Height: 15 mm
  • Product group: Semiconductor Protection Fuses
  • Body/Insulating Material: Ceramic
  • Product Weight: 0.02 kg
  • Power Dissipation at Rated Current Value: 11.2 W

Frequently Asked Questions

What does the aR speed characteristic mean?

The aR (partial-range) speed characteristic means the fuse is designed to protect semiconductor devices by rapidly interrupting short-circuit currents while allowing for normal overload currents, providing selective and reliable protection.

Is this fuse suitable for DC applications?

No, this fuse is rated for AC applications only, as indicated in the technical specifications.

How does the striker indication system work?

The striker indication system provides a mechanical indication of fuse operation by triggering a visible striker when the fuse element melts, allowing for quick identification of blown fuses without disassembly.

Can this fuse be used with any fuse holder?

This fuse requires fuse holders compatible with 14x51 mm cylindrical fuses and suitable for the rated voltage and current specifications.

Common Search Terms

High-speed fuse, Protistor fuse, semiconductor protection fuse, 14x51 fuse, 690V fuse, 50A fuse, aR fuse, cylindrical fuse with striker, industrial fuse, IEC fuse

More Information
Manufacturer Part Number Z1056665
Packed Quantity 10
Barcode 3605340592795
Height 51mm
Width 14.3mm
Depth 14.3mm
HS Code 85361050
Country of Manufacture Tunisia
Manufacturer Mersen
Alternative Product SKU FR14AR69V50T
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