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MERSEN FUSE CC TD FUSE 600V 4A ATQR ATQR4
The Fuse ATQR4 delivers superior circuit protection with time-delay performance, ideal for safeguarding sensitive components and critical equipment against overloads and short circuits. Rated for 600VAC and 300VDC with a 4A current capacity.
£9.50
Why Choose the Mersen ATQR4 Class CC Time-Delay Fuse?
The Mersen ATQR4 is a high-performance Class CC time-delay fuse designed to provide reliable overcurrent protection for industrial control circuits, transformers and other inductive loads. Part of the established Mersen Amp-Trap 2000® ATQR series, this fuse combines time-delay operation with excellent current-limiting performance to protect valuable electrical equipment against overloads and short circuits.
The ATQR4 is engineered to withstand temporary inrush currents generated when transformers, contactors, solenoids and motors are energised. This helps prevent unnecessary fuse operation during normal equipment start-up while maintaining fast and dependable interruption when a genuine fault occurs.
With a 4 A current rating and voltage ratings of up to 600 V AC and 300 V DC, the Mersen ATQR4 is suitable for a wide range of industrial and commercial applications. Its compact Class CC format also helps panel builders save valuable enclosure space while achieving effective branch circuit protection.
Key Advantages
- Reliable Class CC time-delay fuse for industrial circuit protection.
- 4 A current rating suitable for control circuits and inductive loads.
- 600 V AC and 300 V DC voltage ratings for versatile installation.
- Time-delay operation helps withstand temporary start-up and transformer inrush currents.
- Current-limiting performance helps reduce equipment damage during short circuits.
- Compact construction supports space-efficient electrical panel designs.
Key Features
- Mersen Amp-Trap 2000® ATQR series.
- 4 A rated current.
- 600 V AC rated voltage.
- 300 V DC rated voltage.
- Class CC time-delay fuse design.
- High interrupting capacity for demanding fault conditions.
- Ferrule-style cylindrical construction.
- Suitable for branch circuit and industrial control protection.
Reliable Protection for Industrial Electrical Systems
The Mersen ATQR4 provides coordinated protection for circuits that experience brief but normal current surges during energisation. Its time-delay characteristic allows temporary inrush currents to pass without opening the circuit unnecessarily, making it particularly useful for control transformers and inductive equipment.
During overload or short-circuit conditions, the fuse interrupts the current to help limit thermal and mechanical stress on conductors, switching devices and connected machinery. Its Class CC rejection design also helps prevent the installation of unsuitable fuse types when used with compatible rejection fuse holders.
Typical Applications
- Industrial control panels.
- Control transformers.
- Motor control circuits.
- Contactors, relays and solenoids.
- Heating and ventilation equipment.
- OEM machinery and automation systems.
Technical Specifications
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| Current | 4 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Fuse Class | Time delay | |
| Item number | ATQR4 | |
| Description | Fuse ATQR - Class CC - Time-Delay 600VAC 300VDC 4A Ferrule Amp-Trap 2000® | |
| EAN/UPC Code | 782001906566 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 300 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 4 A | |
| AC or DC | AC/DC | |
| Fuse Class | Class CC | |
| Speed/Characteristic | Time Delay | |
| Mounting | Clip | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Connection/Terminal Material | Tin-Plated Copper | |
| Connection/Terminal Type | Ferrule | |
| Product Diameter | 10.4 mm | |
| Product Length | 38.1 mm | |
| Sell Pack Quantity | 10 EA | |
| Sell Pack Weight | 0.0816 kg | |
| Sell Pack Width | 22.4 mm | |
| Sell Pack Length | 41.4 mm | |
| Sell Pack Height | 54.1 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 0.0077 kg | |
| HS Code | 85361010 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen ATQR4 used for?
The ATQR4 is used to protect industrial control circuits, control transformers and other inductive electrical loads against overloads and short circuits.
What is the current rating of the ATQR4?
The Mersen ATQR4 has a rated current of 4 A.
What voltage is the Mersen ATQR4 rated for?
The fuse is rated for applications up to 600 V AC and 300 V DC.
Why does the ATQR4 have a time-delay characteristic?
The time-delay characteristic allows the fuse to tolerate temporary inrush currents from transformers, motors and inductive devices while still providing reliable protection against sustained overloads and short circuits.
What type of fuse holder is required?
The ATQR4 should be installed in a compatible Class CC fuse holder with the correct voltage and current ratings for the application.
Trusted for Industrial Circuit Protection
Mersen Amp-Trap 2000® ATQR Class CC fuses are widely specified by electrical engineers, panel builders and equipment manufacturers for reliable transformer protection, effective current limitation and dependable operation in industrial control systems.
