MERSEN FUSE 600V 6.25A  J TD NON-IND AJT6-1/4N

MERSEN FUSE 600V 6.25A J TD NON-IND AJT6-1/4N

Why Choose the MERSEN FUSE 600V 6.25A J TD NON-IND AJT6-1/4N?

SKU: AJT6-1/4NAlt SKU: AJT6-14NMPN: AJT6-1/4N
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Why Choose the Mersen AJT6-1/4N Class J Fuse?

The Mersen AJT6-1/4N is a high-performance 6.25 A Class J time-delay fuse designed to provide dependable overcurrent and short-circuit protection for industrial electrical equipment. As part of the renowned Mersen Amp-Trap 2000 AJT series, this current-limiting fuse combines strong fault protection with the ability to withstand temporary motor-starting and transformer inrush currents.

Its time-delay operating characteristic helps prevent unnecessary fuse operation during normal transient conditions while responding rapidly to hazardous overcurrents. This makes the AJT6-1/4N suitable for protecting motors, transformers, control panels, branch circuits and other industrial loads where both overload tolerance and effective fault interruption are required.

With a current rating of 6.25 A and a voltage rating of up to 600 V AC, the Mersen AJT6-1/4N supports a wide range of industrial power distribution and machinery applications. Its compact Class J body provides high interrupting capacity while helping reduce the space required inside electrical enclosures.

Key Advantages

  • Reliable Class J time-delay fuse for industrial circuit protection.
  • 6.25 A current rating for precise protection of lower-current equipment.
  • 600 V AC voltage rating suitable for industrial power systems.
  • Current-limiting design helps reduce damaging peak fault current.
  • Time-delay performance accommodates temporary motor and transformer inrush currents.
  • High interrupting capacity supports safe operation in high-fault-current environments.

Key Features

  • Mersen Amp-Trap 2000 AJT series.
  • 6.25 A rated current.
  • 600 V AC rated voltage.
  • Class J dual-element time-delay construction.
  • Current-limiting operation for enhanced equipment protection.
  • Designed to tolerate normal starting and inrush currents.
  • Compact ferrule-style body for compatible Class J fuse holders.
  • Suitable for branch-circuit, motor and transformer protection.

Reliable Protection for Industrial Electrical Systems

The Mersen AJT6-1/4N protects electrical equipment by interrupting excessive current before conductors and connected components sustain serious thermal or mechanical damage. Its current-limiting action restricts the amount of fault energy that can pass through the circuit during a short circuit.

Unlike fast-acting fuses, the AJT series incorporates a time delay that tolerates temporary current surges associated with motor starting, transformer energisation and other normal operating events. This balance of overload tolerance and rapid short-circuit response makes it well suited to demanding industrial control and power distribution applications.

Typical Applications

  • Industrial motor branch circuits.
  • Transformers and control transformers.
  • Machinery and automation control panels.
  • Power distribution equipment.
  • Heating and resistive-load circuits.
  • Industrial lighting and branch-circuit protection.

Technical Specifications

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Current 6.25 A
Voltage 600 V
Device Type Fuse link
Fuse Class Time delay
Manufacturer Mersen
Series Amp-Trap 2000 AJT
Model AJT6-1/4N
Product type Time-delay current-limiting fuse
Fuse class Class J
Rated current 6.25 A
Rated voltage 600 V AC
DC voltage capability Up to 500 V DC
AC interrupting rating Up to 200 kA RMS symmetrical
Operating characteristic Time delay
Fuse construction Dual element
Body style Cylindrical ferrule
Mounting type Class J fuse holder or fuse block
Approximate dimensions 57.2 × 20.6 mm
HS Code 85361010
Country of Manufacture Mexico

Frequently Asked Questions

What is the Mersen AJT6-1/4N used for?

The fuse is used to protect industrial motors, transformers, control panels and branch circuits against damaging overloads and short circuits.

What is the current rating of the AJT6-1/4N?

The Mersen AJT6-1/4N has a rated current of 6.25 A.

Is the Mersen AJT6-1/4N a time-delay fuse?

Yes. It uses a time-delay operating characteristic that tolerates normal temporary inrush currents while maintaining effective overcurrent protection.

What voltage can this fuse support?

The AJT6-1/4N is rated for applications up to 600 V AC and may also be used in suitable DC circuits within its specified DC voltage rating.

Which fuse holder is required?

The fuse should be installed in a correctly rated Class J fuse holder or fuse block that is compatible with its current, voltage and physical dimensions.

Trusted Industrial Circuit Protection

Mersen Amp-Trap 2000 AJT fuses are widely used by electrical engineers, panel builders and maintenance professionals for reliable current-limiting protection in industrial power distribution and machinery applications.