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MERSEN FUSE 300V 400A T FUSE A3T400

MPN: A3T400

Special Price £85.16 £70.97 Regular Price £189.24

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Why Choose the Fuse A3T - Class T - Fast-Acting 300VAC 160VDC 400A Blade Amp-Trap®?

The Fuse A3T400 offers rapid response protection with its fast-acting design, engineered for high-interrupting capacity in demanding industrial and commercial applications. Rated for 300VAC and 160VDC at 400A, it ensures reliable safeguarding of circuits and sensitive equipment against short-circuit and overload conditions.

Its compact Class T blade format allows for flexible installation within space-constrained panels, while durable Amp-Trap® construction guarantees consistent performance and long service life. Ideal where critical system uptime and dependable circuit protection are paramount.

Product Code: A3T400

Key Benefits

  • Fast-acting fuse design for rapid circuit protection
  • High interrupting rating of 200 kA for enhanced safety
  • Compact Class T blade format for space-saving installation
  • Durable Amp-Trap® construction ensures long service life
  • Suitable for both AC and DC applications (300VAC/160VDC)
  • Copper blade terminals provide reliable electrical connection

Compatibility

The A3T400 fuse is compatible with standard Class T fuse holders and bolted mounting configurations commonly used in industrial and commercial electrical panels. It integrates seamlessly with low voltage UL/CSA fuse systems and is suitable for protecting motors, transformers, and other critical equipment requiring fast-acting overcurrent protection.

Applications

  • Industrial motor protection
  • Transformer circuit safeguarding
  • Commercial electrical distribution panels
  • Power supply and control circuits
  • Renewable energy system protection

Technical Specifications

  • Item number: A3T400
  • Description: Fuse A3T - Class T - Fast-Acting 300VAC 160VDC 400A Blade Amp-Trap®
  • EAN/UPC Code: 782001890285
  • Rated voltage AC UL: 300 V
  • Rated voltage DC UL: 160 V
  • Frequency (Hz): 50/60 Hz
  • Ampere Rating: 400 A
  • AC or DC: AC/DC
  • Fuse Class: Class T
  • Speed/Characteristic: Fast-Acting
  • Mounting: Bolted
  • AC Max I.R./Breaking Capacity: I1: 200 kA
  • Connection/Terminal Material: Copper
  • Connection/Terminal Type: Blade
  • Product Diameter: 33.8 mm
  • Product Length: 69.8 mm
  • Sell Pack Quantity: 1 EA
  • Sell Pack Weight: 0.1315 kg
  • Sell Pack Width: 35.1 mm
  • Sell Pack Length: 35.1 mm
  • Sell Pack Height: 73.2 mm
  • Product group: Low Voltage UL/CSA Fuses
  • Body/Insulating Material: GMG
  • Product Weight: 0.1234 kg

Frequently Asked Questions

What does Class T fuse mean?

Class T fuses are fast-acting fuses designed for high interrupting ratings and compact size, providing quick protection for motors and transformers against short circuits and overloads.

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

Yes, the A3T400 fuse is rated for use in both AC (up to 300V) and DC (up to 160V) circuits.

What is the breaking capacity of this fuse?

The fuse has a maximum interrupting rating of 200 kA at AC voltage, ensuring safe disconnection under fault conditions.

Is this fuse compatible with standard Class T fuse holders?

Yes, the A3T400 is designed to fit standard Class T fuse holders with bolted mounting.

Common Search Terms

Class T fuse, fast-acting fuse, 400 amp fuse, 300VAC fuse, 160VDC fuse, Amp-Trap fuse, blade fuse, industrial fuse, motor protection fuse, high interrupting rating fuse

More Information
Manufacturer Part Number A3T400
Packed Quantity 1
Barcode 0782001890285
Height 69.8mm
Width 33.8mm
Depth 33.8mm
HS Code 85361090
Country of Manufacture Mexico
Manufacturer Mersen
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