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MERSEN FUSE 600V 450A CLASS J FUSE A4J450

MPN: A4J450

Special Price £284.96 £237.47 Regular Price £633.24

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Why Choose the Fuse A4J450 Amp-Trap®?

The Fuse A4J450 Class J fast-acting fuse delivers superior circuit protection for demanding industrial applications, with a robust 600VAC/300VDC voltage rating and a high interrupting capacity. Its fast response minimises equipment damage from short circuits, ensuring enhanced system reliability and operational safety.

Engineered for compatibility with standard bolted blade holders, the A4J450 simplifies installation and replacement. Rigorously tested for consistent performance, it is the optimum choice where quick fault clearance and dependable service are critical.

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 fault clearance to protect equipment.
  • High interrupting rating of 200 kA for reliable performance under heavy fault conditions.
  • Dual voltage rating suitable for both AC (600 V) and DC (300 V) applications.
  • Compatible with standard bolted blade holders for easy installation and replacement.
  • Durable construction with brass alloy terminals and GMG insulating body for long service life.

Compatibility

The A4J450 fuse is designed to fit standard Class J fuse holders and bolted blade clips, making it suitable for integration into existing low voltage UL/CSA fuse systems. Its blade terminal type ensures secure and reliable connections in industrial electrical panels and equipment.

Applications

  • Industrial motor control circuits
  • Power distribution panels
  • Heavy machinery protection
  • Renewable energy systems
  • Commercial and industrial electrical installations

Frequently Asked Questions

What is the interrupting capacity of the A4J450 fuse?

The A4J450 fuse has an interrupting capacity of 200 kA AC, making it suitable for high fault current applications.

Can this fuse be used in DC circuits?

Yes, the A4J450 is rated for use in DC circuits up to 300 V as well as AC circuits up to 600 V.

Is the A4J450 compatible with standard fuse holders?

Yes, it is designed to be compatible with standard Class J bolted blade fuse holders for easy installation.

What is the physical size of the fuse?

The fuse measures 203.2 mm in length with a diameter of 63.5 mm.

Common Search Terms

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

More Information
Manufacturer Part Number A4J450
Packed Quantity 1
Barcode 0782001960476
Height 203.2mm
Width 63.5mm
Depth 63.5mm
HS Code 85361090
Country of Manufacture Mexico
Manufacturer Mersen
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