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MERSEN FUSE A 070 URD 31 LI 0400 A070URD31LI0400

MPN: Z300701

Alt. SKU: A070UD31LI400

Special Price £92.11 £76.76 Regular Price £167.48

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MERSEN FUSE A 070 URD 31 LI 0400 A070URD31LI0400 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 400A With Striker Slotted Blades long A070UD31LI400?

Engineered for demanding industrial applications, this Protistor® high-speed fuse delivers rapid, reliable protection for sensitive power semiconductor devices. Rated 400A and compliant with IEC 690VAC and UL 700VAC standards, it ensures maximum operational safety and minimises downtime.

The robust square body design, integrated striker for remote signalling, and slotted blades enable secure installation and easy maintenance. Choose this fuse for enhanced system reliability, consistent performance under fault conditions, and full global standards compliance.

Product Code: Z300701

Key Benefits

  • High-speed protection minimises damage to sensitive semiconductor devices.
  • Robust ceramic body ensures durability and long service life.
  • Integrated striker provides clear indication of fuse operation for remote signalling.
  • Slotted blade terminals allow secure and easy installation.
  • Compliant with IEC and UL voltage standards for global compatibility.
  • Bolted mounting ensures reliable mechanical connection.

Compatibility

This fuse is compatible with industrial power semiconductor protection systems requiring a 400A rating at up to 690VAC (IEC) or 700VAC (UL). It is suitable for use in equipment designed for bolted mounting and where square body size 31 fuses are specified.

Applications

  • Protection of power semiconductors in industrial motor drives.
  • Use in inverters and converters requiring high-speed fuse protection.
  • Industrial automation systems with sensitive electronic components.
  • Electrical distribution panels in manufacturing plants.
  • Renewable energy systems such as solar inverters.

Technical Specifications

  • Item number: Z300701
  • Catalogue No: A070UD31LI400
  • Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 400A With Striker Slotted Blades long
  • EAN/UPC Code: 3605340332438
  • Rated voltage AC UL: 700 V
  • Rated voltage AC IEC: 690 V
  • Ampere Rating: 400 A
  • RoHS Compliant: Yes
  • AC or DC: AC
  • Speed/Characteristic: aR
  • Fuse Size: 31
  • Mounting: Bolted
  • Clearing I2t At Rated Voltage: 110000 A²s
  • Melting I2t: 19000 A²s
  • AC Max I.R./Breaking Capacity: I1: 200 kA
  • Indication System: Yes
  • Indication System Type: Striker
  • Connection/Terminal Material: Silver-Plated Copper
  • Connection/Terminal Type: Slotted Blades
  • Product Width: 51 mm
  • Product Length: 148.6 mm
  • Product Height: 56.5 mm
  • Sell Pack Quantity: 3 EA
  • Sell Pack Weight: 1.2519 kg
  • Sell Pack Width: 155 mm
  • Sell Pack Length: 165 mm
  • Sell Pack Height: 60 mm
  • Product group: Semiconductor Protection Fuses
  • Body/Insulating Material: Ceramic
  • Product Weight: 0.4173 kg
  • Power Dissipation at Rated Current Value: 68 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 components.

Is this fuse suitable for DC applications?

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

Can the integrated striker be used for remote signalling?

Yes, the fuse includes a striker indication system that can trigger remote signalling devices to alert operators of fuse operation.

What mounting method is required for this fuse?

This fuse requires bolted mounting for secure and reliable installation.

Common Search Terms

high-speed fuse, semiconductor protection fuse, Protistor fuse, size 31 fuse, 400A fuse, 690VAC fuse, UL approved fuse, square body fuse, striker fuse, industrial fuse, bolted mounting fuse

More Information
Manufacturer Part Number Z300701
Packed Quantity 3
Barcode 3605340332438
Height 148.6mm
Width 51mm
Depth 56.5mm
HS Code 85361090
Country of Manufacture France
Manufacturer Mersen
Alternative Product SKU A070UD31LI400
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