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MERSEN FUSE A 070 URD 33 LI 1400 A070URD33LI1400

MPN: V300237

Alt. SKU: A070UD33LI1400

Special Price £195.06 £162.55 Regular Price £354.65

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MERSEN FUSE A 070 URD 33 LI 1400 A070URD33LI1400 is available to buy in increments of 3
Free delivery on orders over £200

Why Choose the Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 1400A With Striker Slotted Blades long A070UD33LI1400?

Engineered for demanding industrial environments, this high-speed Protistor® fuse ensures reliable protection for semiconductor devices, delivering rapid arc interruption and superior current-limiting performance. The 1400A rating, slotted blade terminations, and integrated striker mechanism offer quick fault indication and secure, efficient installation across a wide range of high-power applications.

Certified to IEC and UL standards up to 700VAC, the square body Size 33 construction provides robust durability and thermal stability, making it ideal for critical power electronics, drives, and inverter systems where operational integrity and safety are paramount.

Product Code: V300237

Key Benefits

  • High-speed aR characteristic for rapid semiconductor protection
  • Robust ceramic body ensuring durability and thermal stability
  • Integrated striker indication system for quick fault detection
  • Silver-plated copper slotted blade terminals for secure connections
  • Certified to IEC 690VAC and UL 700VAC standards for reliable performance
  • High breaking capacity of 200 kA for demanding industrial applications

Compatibility

This fuse is compatible with Size 33 fuse holders and switchgear designed for semiconductor protection in industrial power electronics, including variable speed drives, inverters, and motor controllers. Its bolted mounting and reinforced terminals ensure reliable integration into existing electrical systems requiring high current interruption capabilities.

Applications

  • Protection of power semiconductor devices
  • Variable speed drives and motor controllers
  • Inverter systems and power converters
  • Industrial automation and control panels
  • High-power electrical installations requiring fast fault clearing

Technical Specifications

  • Item number: V300237
  • Catalogue No: A070UD33LI1400
  • Description: Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 1400A With Striker Slotted Blades long
  • EAN/UPC Code: 3605340325478
  • Rated voltage AC UL: 700 V
  • Rated voltage AC IEC: 690 V
  • Ampere Rating: 1400 A
  • RoHS Compliant: Yes
  • AC or DC: AC
  • Speed/Characteristic: aR
  • Fuse Size: 33
  • Mounting: Bolted
  • Clearing I2t At Rated Voltage: 2700 kA²s
  • Melting I2t: 465 kA²s
  • AC Max I.R./Breaking Capacity: I1: 200 kA
  • Design Details: Reinforced Terminal
  • Indication System: Yes
  • Indication System Type: Striker
  • Connection/Terminal Material: Silver-Plated Copper
  • Connection/Terminal Type: Slotted Blades
  • Product Width: 73 mm
  • Product Length: 153 mm
  • Product Height: 78.5 mm
  • Sell Pack Quantity: 3 EA
  • Sell Pack Weight: 2.6298 kg
  • Sell Pack Width: 160 mm
  • Sell Pack Length: 250 mm
  • Sell Pack Height: 90 mm
  • Product group: Semiconductor Protection Fuses
  • Body/Insulating Material: Ceramic
  • Product Weight: 0.8766 kg
  • Power Dissipation at Rated Current Value: 200 W

Frequently Asked Questions

What does the aR speed characteristic mean?

The aR (partial range) speed characteristic indicates the fuse is designed specifically for semiconductor protection, providing fast interruption of short-circuit currents 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.

How does the striker indication system work?

The striker mechanism provides a visual and mechanical indication when the fuse has operated, allowing quick identification of a blown fuse without disassembly.

Can this fuse be used in standard fuse holders?

This fuse requires Size 33 fuse holders designed for bolted mounting and slotted blade connections to ensure proper fit and electrical contact.

Common Search Terms

Square body high-speed fuse, Protistor fuse Size 33, 1400A semiconductor fuse, aR fuse 690VAC, UL 700VAC fuse, striker indication fuse, slotted blade fuse, bolted mounting fuse, industrial semiconductor protection, high breaking capacity fuse.

More Information
Manufacturer Part Number V300237
Packed Quantity 3
Barcode 3605340325478
Height 153mm
Width 73mm
Depth 78.5mm
HS Code 85361090
Manufacturer Mersen
Alternative Product SKU A070UD33LI1400
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