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MERSEN FUSE 600V 45A CLASS J FUSE A4J45

MPN: A4J45

Special Price £32.03 £26.69 Regular Price £71.16

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MERSEN FUSE 600V 45A CLASS J FUSE A4J45 is available to buy in increments of 10
Free delivery on orders over £200

Why Choose the Fuse A4J - Class J - Fast-Acting 600VAC 300VDC 450A Blade Amp-Trap®?

The Fuse A4J45 delivers rapid circuit protection for critical applications, ensuring safe and reliable interruption of overcurrents up to 450A. Its fast-acting design is ideal for safeguarding sensitive power distribution systems and equipment operating at 600VAC or 300VDC.

Engineered to meet stringent industrial standards, the A4J45 features a robust blade-style construction for secure installation and long-term durability. Optimised for minimal energy let-through and enhanced system uptime, it is the dependable choice for demanding environments.

Technical Specifications

  • Item number: A4J450
  • Description: Fuse A4J - Class J - Fast-Acting 600VAC 300VDC 450A Blade Amp-Trap®
  • EAN/UPC Code: 782001960476
  • Rated voltage AC UL: 600 V
  • Rated voltage DC UL: 300 V
  • Frequency (Hz): 50/60 Hz
  • Ampere Rating: 450 A
  • AC or DC: AC/DC
  • Fuse Class: Class J
  • Speed/Characteristic: Fast-Acting
  • Mounting: Clip
  • AC Max I.R./Breaking Capacity: I1: 200 kA
  • Connection/Terminal Material: Brass Alloy
  • Connection/Terminal Type: Blade
  • Product Diameter: 63.5 mm
  • Product Length: 203.2 mm
  • Sell Pack Quantity: 1 EA
  • Sell Pack Weight: 1.4379 kg
  • Sell Pack Width: 63.5 mm
  • Sell Pack Length: 222.2 mm
  • Sell Pack Height: 60.5 mm
  • Product group: Low Voltage UL/CSA Fuses
  • Body/Insulating Material: GMG
  • Product Weight: 1.3698 kg

Product Code: A4J450

Key Benefits

  • Fast-acting fuse design ensures rapid interruption of overcurrents, protecting sensitive equipment.
  • High breaking capacity of 200 kA for reliable performance in demanding industrial environments.
  • Blade-style terminals with brass alloy material provide secure and durable connections.
  • Compatible with both AC (600 V) and DC (300 V) systems for versatile application.
  • Robust GMG insulating body material enhances durability and safety.
  • Clip mounting simplifies installation and replacement.

Compatibility

The Fuse A4J45 is compatible with Class J fuse holders and fuse blocks designed for blade-type terminals. It suits power distribution systems requiring fast-acting protection at voltages up to 600VAC and 300VDC. Ideal for use in industrial control panels, motor circuits, and branch circuit protection where Class J fuses are specified.

Applications

  • Industrial motor control circuits
  • Power distribution panels
  • Lighting and HVAC systems
  • Renewable energy systems requiring DC protection
  • Critical manufacturing equipment protection
  • Commercial and industrial electrical installations

Frequently Asked Questions

What does Class J fuse mean?

Class J fuses are a category of low voltage fuses designed for branch circuit protection with high interrupting ratings and fast-acting characteristics, suitable for protecting motors and other sensitive equipment.

Can this fuse be used in both AC and DC circuits?

Yes, the Fuse A4J45 is rated for use in both AC circuits up to 600 V and DC circuits up to 300 V, making it versatile for various applications.

What is the breaking capacity of this fuse?

The fuse has a maximum interrupting rating of 200 kA at rated voltage, ensuring it can safely interrupt high fault currents.

How do I install this fuse?

This blade-type fuse is designed for clip mounting into compatible fuse holders or blocks. Always ensure power is off before installation and follow manufacturer instructions.

Common Search Terms

Class J fuse, fast-acting fuse, 450 amp fuse, 600VAC fuse, 300VDC fuse, blade fuse, Amp-Trap fuse, industrial circuit protection, high interrupting capacity fuse, motor protection fuse

More Information
Manufacturer Part Number A4J45
Packed Quantity 10
Barcode 0782001960230
Height 60.5mm
Width 27mm
Depth 27mm
HS Code 85361050
Country of Manufacture Mexico
Manufacturer Mersen
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