MERSEN FUSE CC TD FUSE 600V 1/4A ATDR ATDR1/4

MERSEN FUSE CC TD FUSE 600V 1/4A ATDR ATDR1/4

Why Choose the MERSEN FUSE CC TD FUSE 600V 1/4A ATDR ATDR1/4?

SKU: ATDR1/4Alt SKU: ATDR14MPN: ATDR1/4
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Why Choose the Mersen ATDR1/4 Class CC Fuse?

The Mersen ATDR1/4 is a premium 0.25 A Class CC time-delay fuse designed to provide reliable overcurrent and short-circuit protection for industrial control circuits, instrumentation and sensitive electrical equipment. As part of the trusted Mersen Amp-Trap 2000 ATDR series, it delivers outstanding current-limiting performance while accommodating temporary inrush currents associated with transformers, relays and small motors.

Its dual-element time-delay construction helps prevent nuisance fuse operation during normal equipment start-up while rapidly clearing sustained overloads and fault currents. The compact Class CC design allows panel builders and OEMs to maximise valuable enclosure space without compromising electrical protection.

With a rated current of 0.25 A and voltage ratings of 600 V AC and 300 V DC, the ATDR1/4 is ideally suited to industrial control panels, automation systems, branch circuits and low-current electrical applications requiring dependable circuit protection.

Key Advantages

  • Compact Class CC time-delay fuse for industrial circuit protection.
  • 0.25 A current rating for sensitive electrical equipment.
  • 600 V AC and 300 V DC voltage ratings.
  • Current-limiting design reduces damaging fault energy.
  • Time-delay characteristic accommodates transformer and motor inrush currents.
  • High interrupting capacity for demanding industrial installations.

Key Features

  • Mersen Amp-Trap 2000 ATDR series.
  • 0.25 A rated current.
  • 600 V AC / 300 V DC rated voltage.
  • Class CC dual-element time-delay construction.
  • Current-limiting technology for superior equipment protection.
  • Rejection-style ferrule design.
  • Compact dimensions for space-saving installations.
  • Suitable for branch circuits, instrumentation, transformers and industrial controls.

Reliable Protection for Industrial Control Circuits

The Mersen ATDR1/4 interrupts excessive current before wiring and connected equipment can sustain thermal or mechanical damage. Its highly current-limiting design significantly reduces the fault energy transmitted through the circuit during a short circuit, helping protect expensive control components and minimise downtime.

The fuse's time-delay characteristic allows harmless temporary current surges associated with transformer energisation and small motor starting while providing rapid interruption of sustained overloads. This makes the ATDR1/4 particularly suitable for industrial automation, instrumentation and control panel applications.

Typical Applications

  • Industrial control panels.
  • Instrumentation and monitoring equipment.
  • Control transformers.
  • Relays and contactors.
  • Small motors.
  • Branch circuit protection.

Technical Specifications

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Current 0.25 A
Voltage 600 V
Device Type Fuse link
Fuse Class Time delay
Manufacturer Mersen
Series Amp-Trap 2000 ATDR
Model ATDR1/4
Product type Time-delay current-limiting fuse
Fuse class Class CC
Rated current 0.25 A
Rated AC voltage 600 V AC
Rated DC voltage 300 V DC
Frequency 50 / 60 Hz
AC interrupting rating 200 kA RMS symmetrical
DC interrupting rating 100 kA
Operating characteristic Time delay
Terminal type Ferrule
Mounting type Class CC fuse holder
Dimensions (L × D) 38.1 × 10.4 mm
HS Code 85361010
Country of Manufacture Mexico

Frequently Asked Questions

What is the Mersen ATDR1/4 used for?

The ATDR1/4 protects industrial control circuits, instrumentation, transformers, relays and branch circuits against overloads and short circuits.

What is the current rating of the ATDR1/4?

The Mersen ATDR1/4 has a rated current of 0.25 A, equivalent to one-quarter of an ampere.

Is the Mersen ATDR1/4 a time-delay fuse?

Yes. Its dual-element time-delay construction allows it to tolerate normal transformer and motor inrush currents while maintaining effective overcurrent protection.

What voltage is the ATDR1/4 rated for?

The fuse is rated for applications up to 600 V AC and 300 V DC.

Which fuse holder should be used with the ATDR1/4?

The ATDR1/4 should be installed in a correctly rated Class CC fuse holder designed for rejection-style Class CC fuses.

Trusted Industrial Circuit Protection

Mersen Amp-Trap 2000 ATDR Class CC fuses are trusted by electrical engineers and OEMs worldwide for compact, highly current-limiting protection of industrial control circuits and sensitive electrical equipment.