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MERSEN FUSE 600V 25A CLASS J FUSE A4J25

MPN: A4J25

Special Price £19.62 £16.35 Regular Price £43.61

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MERSEN FUSE 600V 25A CLASS J FUSE A4J25 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 250A Blade Amp-Trap®?

The Fuse A4J25 delivers robust short-circuit and overload protection for demanding industrial applications, rated for 600VAC and 300VDC with a 250A capability. Its fast-acting response minimises equipment damage by swiftly interrupting high fault currents.

Designed in a compact Class J blade format, this fuse ensures reliable performance, straightforward installation, and compliance with rigorous safety standards, making it ideal for panels, switchboards, and sensitive load protection.

Technical Specifications

  • Item number: A4J250
  • Description: Fuse A4J - Class J - Fast-Acting 600VAC 300VDC 250A Blade Amp-Trap®
  • EAN/UPC Code: 782001960391
  • Rated voltage AC UL: 600 V
  • Rated voltage DC UL: 300 V
  • Frequency (Hz): 50/60 Hz
  • Ampere Rating: 250 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: 54 mm
  • Product Length: 181.1 mm
  • Sell Pack Quantity: 1 EA
  • Sell Pack Weight: 0.8346 kg
  • Sell Pack Width: 53.8 mm
  • Sell Pack Length: 53.8 mm
  • Sell Pack Height: 184.1 mm
  • Product group: Low Voltage UL/CSA Fuses
  • Body/Insulating Material: GMG
  • Product Weight: 0.7938 kg

Product Code: A4J250

Key Benefits

  • Fast-acting fuse for rapid fault interruption, minimising equipment damage.
  • High breaking capacity of 200 kA ensures reliable protection under severe fault conditions.
  • Compact Class J blade design allows easy installation in standard fuse holders.
  • Suitable for both AC and DC applications up to 600VAC and 300VDC.
  • Durable construction with brass alloy terminals and GMG insulating body for long service life.
  • Complies with UL and CSA safety standards for industrial electrical equipment.

Compatibility

This fuse is compatible with standard Class J fuse clips and holders designed for blade-style fuses. It is suitable for use in low voltage industrial switchboards, control panels, and motor circuits requiring fast-acting overcurrent protection.

Applications

  • Industrial motor protection
  • Control panel circuits
  • Switchboard and distribution equipment
  • Overcurrent protection in AC and DC systems
  • Equipment requiring fast-acting fuse characteristics

Frequently Asked Questions

What does Class J mean for this fuse?

Class J fuses are high-performance fuses designed for industrial applications with high interrupting ratings and fast-acting characteristics, suitable for protecting motors and other sensitive equipment.

Can this fuse be used in DC circuits?

Yes, the Fuse A4J25 is rated for both AC up to 600V and DC up to 300V, making it versatile for various applications.

What is the significance of the 200 kA breaking capacity?

The 200 kA breaking capacity indicates the maximum fault current the fuse can safely interrupt without damage, ensuring protection in high short-circuit scenarios.

How do I install this fuse?

This fuse is designed for clip mounting in compatible fuse holders. Ensure power is off before installation and verify correct fuse rating and type for your application.

Common Search Terms

Class J fuse, fast-acting blade fuse, 250A fuse, 600VAC fuse, 300VDC fuse, industrial fuse, Amp-Trap fuse, high interrupting capacity fuse, motor protection fuse, low voltage fuse

More Information
Manufacturer Part Number A4J25
Packed Quantity 10
Barcode 0782001960179
Height 57.2mm
Width 20.7mm
Depth 20.7mm
HS Code 85361050
Country of Manufacture Mexico
Manufacturer Mersen
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