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MERSEN FUSE A 100 URD 73 LI 1000 A100URD73LI1000

MPN: M300690

Alt. SKU: A100UD73LI1000

Special Price £178.54 £148.78 Regular Price £324.60

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Why Choose the Square Body High-Speed Fuse Protistor® Size 73 aR 900VAC IEC 1000VAC UL 1000A With Striker Slotted Blades Long A100UD73LI1000?

Designed for superior circuit protection in high-power industrial applications, the A100UD73LI1000 high-speed fuse delivers reliable fault interruption up to 1000A and is fully compliant with IEC and UL standards at 900VAC and 1000VAC respectively. Its advanced aR characteristic ensures optimal response to short-circuit events, safeguarding sensitive power semiconductors and equipment.

The fuse features robust slotted blade terminals with an integrated striker for quick status indication, simplifying maintenance and reducing downtime. Engineered in the versatile Size 73 square body format, it is an ideal choice for power conversion systems, drives, and heavy-duty switchgear demanding precision, durability, and proven performance.

Product Code: M300690

Key Benefits

  • High-speed aR characteristic for optimal semiconductor protection
  • Rated for 1000A at 900VAC IEC and 1000VAC UL for versatile application
  • Robust ceramic body ensures durability and long service life
  • Striker indication system enables quick fuse status verification
  • Silver-plated copper slotted blade terminals for reliable connections
  • Bolted mounting ensures secure and stable installation
  • High breaking capacity (150 kA) for maximum fault interruption

Compatibility

This fuse is compatible with power conversion systems, industrial drives, heavy-duty switchgear, and semiconductor protection circuits requiring high-speed fault interruption. It fits Size 73 fuse holders and assemblies designed for bolted mounting with slotted blade terminals.

Applications

  • Power semiconductor protection in industrial equipment
  • Motor drives and variable frequency drives (VFDs)
  • Switchgear and control panels in heavy industry
  • Power conversion and rectifier units
  • Renewable energy systems such as solar inverters

Technical Specifications

  • Item number: M300690
  • Catalogue No: A100UD73LI1000
  • Description: Square Body High-Speed Fuse Protistor® Size 73 aR 900VAC IEC 1000VAC UL 1000A With Striker Slotted Blades long
  • EAN/UPC Code: 3605340332292
  • Rated voltage AC UL: 1000 V
  • Rated voltage AC IEC: 900 V
  • Ampere Rating: 1000 A
  • AC or DC: AC
  • Speed/Characteristic: aR
  • Fuse Size: 73
  • Mounting: Bolted
  • Clearing I2t At Rated Voltage: 1920 kA²s
  • Melting I2t: 370 kA²s
  • AC Max I.R./Breaking Capacity: I1: 150 kA
  • Indication System: Yes
  • Indication System Type: Striker
  • Connection/Terminal Material: Silver-Plated Copper
  • Connection/Terminal Type: Slotted Blades
  • Product Width: 73 mm
  • Product Length: 157.4 mm
  • Product Height: 78.5 mm
  • Sell Pack Quantity: 1 EA
  • Sell Pack Weight: 1.25 kg
  • Sell Pack Width: 100 mm
  • Sell Pack Length: 180 mm
  • Sell Pack Height: 80 mm
  • Product group: Semiconductor Protection Fuses
  • Body/Insulating Material: Ceramic
  • Product Weight: 1.25 kg
  • Power Dissipation at Rated Current Value: 174 W

Frequently Asked Questions

What does the aR characteristic mean for this fuse?

The aR (partial range) characteristic means the fuse is designed to protect power semiconductors by interrupting short-circuit faults quickly, but it does not provide full-range overload protection.

Can this fuse be used in DC circuits?

No, this fuse is rated specifically for AC applications at 900VAC IEC and 1000VAC UL standards. It should not be used in DC circuits.

How does the striker indication system work?

The striker indication system provides a mechanical indication of fuse operation by releasing a striker when the fuse element blows, allowing for quick visual or mechanical status checks.

What mounting options are available for this fuse?

This fuse is designed for bolted mounting, ensuring a secure and stable connection within the fuse holder or assembly.

Common Search Terms

high-speed fuse, semiconductor protection fuse, aR fuse, 1000A fuse, 900VAC fuse, 1000VAC fuse, Size 73 fuse, Protistor fuse, striker fuse, slotted blade fuse, bolted mounting fuse, industrial fuse, power semiconductor protection

More Information
Manufacturer Part Number M300690
Packed Quantity 1
Barcode 3605340332292
Height 157.4mm
Width 73mm
Depth 78.5mm
HS Code 85361090
Manufacturer Mersen
Alternative Product SKU A100UD73LI1000
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