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MERSEN FUSE 11 URD 71 EF 0550 PC71UD11C550EF

MPN: G300616

Alt. SKU: PC71UD11C550EF

Special Price £121.91 £101.59 Regular Price £221.64

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MERSEN FUSE 11 URD 71 EF 0550 PC71UD11C550EF is available to buy in increments of 3
Free delivery on orders over £200

Why Choose the Square Body High-Speed Fuse Protistor® Size 71 aR 1100VAC IEC 1200VAC UL 550A With Striker Open Slot Blades PC71UD11C550EF?

Engineered for demanding industrial and power electronics applications, this high-speed Protistor® fuse delivers exceptional circuit protection up to 1100VAC (IEC) / 1200VAC (UL) and a rated current of 550A. Its robust square body construction ensures reliable performance in harsh environments, while the integral striker with open slot blades facilitates predictive maintenance and rapid identification of blown fuses.

Compliance with IEC and UL standards guarantees compatibility and global acceptance, making it ideal for safeguarding semiconductor devices, inverters, and critical equipment. Trusted for its rapid breaking capability and durable design, the PC71UD11C550EF minimises downtime and protects your assets with uncompromising efficiency.

Product Code: PC71UD11C550EF

Key Benefits

  • High-speed aR characteristic ensures rapid disconnection of semiconductor faults.
  • Robust ceramic square body for enhanced durability in industrial environments.
  • Integral striker with open slot blades enables easy blown fuse indication and maintenance.
  • Compliance with IEC and UL standards for global application and safety assurance.
  • Silver-plated copper terminals provide excellent conductivity and corrosion resistance.
  • Bolted mounting ensures secure and stable installation.

Compatibility

This fuse is compatible with a wide range of industrial power electronics systems including semiconductor protection circuits, inverters, motor drives, and other critical electrical equipment requiring high-speed fault interruption at voltages up to 1200VAC.

Applications

  • Protection of semiconductor devices such as thyristors and diodes.
  • Industrial motor drives and variable speed drives.
  • Power inverters and converters in renewable energy systems.
  • High power electrical distribution and control panels.
  • Critical equipment in manufacturing and processing plants.

Technical Specifications

  • Item number: G300616
  • Catalogue No: PC71UD11C550EF
  • Description: Square Body High-Speed Fuse Protistor® Size 71 aR 1100VAC IEC 1200VAC UL 550A With Striker Open Slot Blades
  • EAN/UPC Code: 3605340331011
  • Rated voltage AC UL: 1200 V
  • Rated voltage AC IEC: 1100 V
  • Ampere Rating: 550 A
  • AC or DC: AC
  • Speed/Characteristic: aR
  • Fuse Size: 71
  • Mounting: Bolted
  • Clearing I2t At Rated Voltage: 548 kA²s
  • Melting I2t: 84 kA²s
  • AC Max I.R./Breaking Capacity: I1: 167 kA
  • Indication System: Yes
  • Indication System Type: Striker
  • Connection/Terminal Material: Silver-Plated Copper
  • Connection/Terminal Type: Open Slot Blades
  • Product Width: 51 mm
  • Product Length: 149.4 mm
  • Product Height: 56.5 mm
  • Sell Pack Quantity: 3 EA
  • Sell Pack Weight: 1.62 kg
  • Sell Pack Width: 140 mm
  • Sell Pack Length: 174 mm
  • Sell Pack Height: 71 mm
  • Product group: Semiconductor Protection Fuses
  • Body/Insulating Material: Ceramic
  • Product Weight: 0.54 kg
  • Power Dissipation at Rated Current Value: 112 W

Frequently Asked Questions

What does the aR speed/characteristic mean for this fuse?

The aR characteristic indicates a high-speed fuse designed specifically for semiconductor protection, capable of interrupting short-circuit currents rapidly to protect sensitive components.

Can this fuse be used in DC applications?

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

How does the striker indication system work?

The striker is an integral mechanical indicator that pops out when the fuse blows, providing a clear visual indication for maintenance personnel to identify and replace the fuse quickly.

Is this fuse compatible with UL and IEC standards?

Yes, the fuse is compliant with both IEC and UL standards, ensuring global compatibility and safety.

Common Search Terms

high-speed fuse, Protistor fuse, semiconductor protection fuse, aR fuse 550A, 1100VAC fuse, 1200VAC fuse, striker fuse, size 71 fuse, bolted mounting fuse, ceramic body fuse, industrial fuse, power electronics fuse

More Information
Manufacturer Part Number G300616
Packed Quantity 3
Barcode 3605340331011
Height 149.4mm
Width 51mm
Depth 56.5mm
HS Code 85351000
Manufacturer Mersen
Alternative Product SKU PC71UD11C550EF
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