MERSEN FUSE 500V 4-1/2A TD MIDGET FUSE ATQ4-1/2

MERSEN FUSE 500V 4-1/2A TD MIDGET FUSE ATQ4-1/2

Why Choose the MERSEN FUSE 500V 4-1/2A TD MIDGET FUSE ATQ4-1/2?

SKU: ATQ4-1/2Alt SKU: ATQ4-12MPN: ATQ4-1/2
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Why Choose the Mersen ATQ4-1/2 Time-Delay Fuse?

The Mersen ATQ4-1/2 is a dependable time-delay midget cartridge fuse designed to provide reliable supplemental overcurrent protection for industrial control circuits and electrical equipment. As part of the trusted Mersen ATQ series, it is engineered to withstand temporary inrush currents while protecting against sustained overloads and short-circuit faults.

With a rated current of 4.5 A and a maximum voltage rating of 500 V AC, the ATQ4-1/2 is ideal for protecting control transformers, solenoids, relays, lighting circuits and other inductive loads commonly found in industrial machinery and control panels. Its time-delay characteristic helps minimise nuisance fuse operation during equipment start-up while maintaining dependable circuit protection.

Manufactured in the standard 10 × 38 mm midget cartridge format, the ATQ4-1/2 fits compatible fuse holders and disconnect switches with ease. Its compact construction and robust performance make it suitable for a wide range of industrial automation, OEM machinery and commercial electrical installations.

Key Advantages

  • Reliable time-delay fuse protection for circuits with temporary inrush currents.
  • 4.5 A current rating for dependable supplemental circuit protection.
  • 500 V AC voltage rating suitable for industrial electrical systems.
  • Standard 10 × 38 mm midget cartridge design.
  • Helps reduce nuisance fuse operation during equipment energisation.
  • Suitable for transformers, relays, solenoids and industrial control equipment.

Key Features

  • Mersen ATQ series time-delay fuse.
  • 4.5 A rated current.
  • 500 V AC maximum voltage rating.
  • Time-delay operating characteristic.
  • 10 × 38 mm ferrule cartridge.
  • 10 kA interrupting rating.
  • Compatible with standard midget fuse holders.
  • Designed for supplemental industrial circuit protection.

Reliable Protection for Industrial Control Circuits

The Mersen ATQ4-1/2 is designed to tolerate the temporary inrush currents associated with transformers, relays and inductive loads while providing dependable protection against sustained overloads and short-circuit conditions. This helps improve equipment reliability and reduce unnecessary fuse replacement.

Its compact 10 × 38 mm construction allows straightforward installation into compatible fuse holders used throughout industrial control panels and electrical distribution equipment, making maintenance quick and efficient.

Typical Applications

  • Industrial control panels.
  • Control transformers.
  • Relay and solenoid circuits.
  • PLC and automation equipment.
  • Industrial machinery.
  • Commercial electrical installations.

Technical Specifications

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Current 4.5 A
Voltage 500 V
Device Type Fuse link
Fuse Size 10x38 mm
Fuse Class Time delay
Manufacturer Mersen
Series ATQ
Model ATQ4-1/2
Product type Time-delay midget cartridge fuse
Rated current 4.5 A
Rated voltage 500 V AC
Frequency 50 / 60 Hz
Interrupting rating 10 kA
Fuse size 10 × 38 mm
Fuse characteristic Time delay
Terminal type Ferrule
Mounting type Compatible fuse holder or fuse block
Application Supplemental circuit protection
Former brand Ferraz Shawmut
HS Code 85361010
Country of Manufacture Mexico

Frequently Asked Questions

What is the Mersen ATQ4-1/2 used for?

The ATQ4-1/2 provides supplemental overcurrent protection for industrial control circuits, transformers, relays, solenoids and other electrical equipment.

What is the current rating of the ATQ4-1/2?

The fuse has a rated current of 4.5 A.

What voltage is the fuse rated for?

The ATQ4-1/2 has a maximum operating voltage of 500 V AC.

Why is a time-delay fuse used?

The time-delay characteristic allows temporary inrush currents during equipment start-up while continuing to protect against sustained overloads and fault currents.

What fuse holder is compatible with the ATQ4-1/2?

The fuse is designed for use in compatible 10 × 38 mm midget fuse holders and fuse blocks.

Trusted Industrial Circuit Protection

Mersen ATQ time-delay fuses are trusted by electrical engineers, OEMs and panel builders worldwide to provide dependable supplemental protection for industrial control systems and automation equipment.