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MERSEN FUSE A 070 URD 31 TTI 0630 A070URD31TTI0630

MPN: J300480

Alt. SKU: A070UD31TTI630

Special Price £104.83 £87.36 Regular Price £190.61

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MERSEN FUSE A 070 URD 31 TTI 0630 A070URD31TTI0630 is available to buy in increments of 3
Free delivery on orders over £200

Why Choose the Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 630A With Striker Flush ends UNC threads A070UD31TTI630?

Engineered for superior protection of sensitive power semiconductor devices, this high-speed fuse delivers reliable performance with rapid fault interruption and minimal energy let-through. Its robust square body design and UNC thread flush ends ensure compatibility and secure integration in demanding industrial environments.

Certified to IEC 690VAC and UL 700VAC standards, the Protistor® A070UD31TTI630 supports ratings up to 630A, providing assured safety, durability, and consistent operation in critical power electronics, drives, and inverter systems.

Product Code: J300480

Key Benefits

  • High-speed interruption to protect sensitive semiconductor devices
  • Robust ceramic body ensures durability and long service life
  • Flush ends with UNC threads for secure and easy mounting
  • Striker indication system provides clear fault indication
  • Certified to IEC and UL standards for reliable performance
  • High breaking capacity of 200 kA ensures safety under fault conditions

Compatibility

This fuse is compatible with industrial power electronics, including inverter systems, motor drives, and semiconductor protection applications requiring a 31-size aR fuse with a 630A rating and high breaking capacity. Its bolted mounting and flush end terminals allow integration into standard fuse holders designed for UNC thread connections.

Applications

  • Protection of power semiconductor devices such as thyristors and diodes
  • Industrial motor drives and inverters
  • Power electronics and control systems
  • Renewable energy systems requiring high-speed fuse protection
  • General semiconductor protection in industrial environments

Technical Specifications

  • Item number: J300480
  • Catalogue No: A070UD31TTI630
  • Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 630A With Striker Flush ends UNC threads
  • EAN/UPC Code: 3605340329094
  • Rated voltage AC UL: 700 V
  • Rated voltage AC IEC: 690 V
  • Ampere Rating: 630 A
  • RoHS Compliant: Yes
  • AC or DC: AC
  • Speed/Characteristic: aR
  • Fuse Size: 31
  • Mounting: Bolted
  • Clearing I2t At Rated Voltage: 430000 A²s
  • Melting I2t: 75000 A²s
  • AC Max I.R./Breaking Capacity: I1: 200 kA
  • Indication System: Yes
  • Indication System Type: Striker
  • Connection/Terminal Material: Silver-Plated Brass
  • Connection/Terminal Type: Flush ends
  • Product Width: 51 mm
  • Product Length: 50.6 mm
  • Product Height: 56.5 mm
  • Sell Pack Quantity: 3 EA
  • Sell Pack Weight: 1.155 kg
  • Sell Pack Width: 85 mm
  • Sell Pack Length: 168 mm
  • Sell Pack Height: 65 mm
  • Product group: Semiconductor Protection Fuses
  • Body/Insulating Material: Ceramic
  • Product Weight: 0.385 kg
  • Power Dissipation at Rated Current Value: 75 W

Frequently Asked Questions

What does the 'aR' speed/characteristic mean?

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

Is this fuse suitable for DC applications?

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

What is the purpose of the striker indication system?

The striker indication system provides a visual signal when the fuse has operated (blown), allowing for quick identification and replacement.

Can this fuse be used in standard fuse holders?

Yes, it is designed with flush ends and UNC threads for bolted mounting in compatible fuse holders.

Common Search Terms

high-speed fuse, semiconductor protection fuse, Protistor fuse, size 31 fuse, 630A fuse, aR fuse, IEC 690VAC fuse, UL 700VAC fuse, striker fuse, flush end fuse, industrial fuse, power electronics protection

More Information
Manufacturer Part Number J300480
Packed Quantity 3
Barcode 3605340329094
Height 50.6mm
Width 51mm
Depth 56.5mm
HS Code 85361090
Country of Manufacture France
Manufacturer Mersen
Alternative Product SKU A070UD31TTI630
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