MERSEN FUSE CC TD FUSE 600V 4-1/2A ATDR ATDR4-1/2

MERSEN FUSE CC TD FUSE 600V 4-1/2A ATDR ATDR4-1/2

Why Choose the MERSEN FUSE CC TD FUSE 600V 4-1/2A ATDR ATDR4-1/2?

SKU: ATDR4-1/2Alt SKU: ATDR4-12MPN: ATDR4-1/2
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Why Choose the Mersen ATDR4-1/2 Class CC Fuse?

The Mersen ATDR4-1/2 is a premium Class CC time-delay industrial fuse engineered to provide reliable overcurrent and short-circuit protection for motors, transformers, industrial control panels and branch circuits. As part of the proven Mersen Amp-Trap 2000® ATDR series, it combines exceptional current-limiting performance with excellent time-delay characteristics, allowing normal equipment inrush currents while safeguarding valuable electrical equipment.

Designed for demanding industrial applications, the ATDR4-1/2 helps minimise downtime by protecting increasingly sensitive electrical systems from damaging fault currents. Its rejection-style Class CC construction ensures correct fuse replacement when used with compatible Class CC fuse holders while providing dependable protection for modern industrial installations.

With a 4.5 A current rating, 600 V AC and 300 V DC voltage ratings, the Mersen ATDR4-1/2 is ideal for motor branch circuits, industrial automation systems, OEM machinery and control transformer protection.

Key Advantages

  • Compact Class CC time-delay fuse for industrial branch circuit protection.
  • 4.5 A current rating for motors, transformers and control circuits.
  • 600 V AC and 300 V DC voltage ratings.
  • Time-delay characteristics reduce nuisance operation during motor start-up.
  • Highly current-limiting design minimises fault energy reaching equipment.
  • Rejection-style Class CC construction prevents incorrect fuse replacement.

Key Features

  • Mersen Amp-Trap 2000® ATDR series.
  • 4.5 A rated current.
  • 600 V AC / 300 V DC rated voltage.
  • Class CC time-delay current-limiting fuse.
  • Excellent cycling capability for frequently started small motors.
  • Provides IEC Type 2 "No Damage" protection when correctly coordinated.
  • Compact cylindrical ferrule construction.
  • Compatible with Class CC rejection-style fuse holders.

Reliable Protection for Industrial Electrical Systems

The Mersen ATDR4-1/2 delivers dependable protection by allowing temporary motor and transformer inrush currents while rapidly clearing overloads and short-circuit faults. Its highly current-limiting design helps reduce thermal and mechanical stress on downstream electrical equipment, extending service life and reducing maintenance costs.

The Amp-Trap 2000® ATDR range is widely specified by electrical engineers, panel builders and OEM machine manufacturers seeking compact, reliable branch circuit protection for modern industrial installations.

Typical Applications

  • Industrial control panels.
  • Motor branch circuit protection.
  • Control transformers.
  • PLC and automation systems.
  • OEM machinery and manufacturing equipment.
  • Contactors, relays and control circuits.

Technical Specifications

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Current 4.5 A
Voltage 600 V
Device Type Fuse link
Fuse Class Time delay
Manufacturer Mersen
Series Amp-Trap 2000® ATDR
Model ATDR4-1/2
Product type Time-delay industrial fuse
Fuse class Class CC
Rated current 4.5 A
Rated voltage AC 600 V AC
Rated voltage DC 300 V DC
Frequency 50 / 60 Hz
Operating characteristic Time delay
Interrupting rating 200 kA AC, 100 kA DC
Construction Current-limiting ferrule fuse
Dimensions approx. 10.3 × 38.1 mm (13/32 × 1½ in)
Mounting Class CC rejection fuse holder
HS Code 85361010
Country of Manufacture Mexico

Frequently Asked Questions

What is the Mersen ATDR4-1/2 used for?

The ATDR4-1/2 protects industrial branch circuits, motors, transformers and control equipment against overloads and short-circuit faults.

What is the current rating of the ATDR4-1/2?

The fuse has a 4.5 A current rating.

What voltage is the Mersen ATDR4-1/2 rated for?

The fuse is rated for 600 V AC and 300 V DC electrical systems.

Is the ATDR4-1/2 a time-delay fuse?

Yes. Its time-delay characteristics allow temporary motor and transformer inrush currents while providing dependable protection against sustained overloads and short circuits.

What fuse holder should be used?

The ATDR4-1/2 should be installed in a compatible Class CC rejection-style fuse holder to ensure safe operation and proper fuse coordination.

Trusted by Electrical Professionals Worldwide

Mersen Amp-Trap 2000® ATDR Class CC fuses are trusted by electrical engineers, OEM machine builders and industrial maintenance professionals for reliable, compact and high-performance circuit protection.