ATQR4 Mersen – Fuse ATQR – Class CC – Time-Delay 600VAC 300VDC 4A Ferrule Amp-Trap 2000®

ATQR4 Mersen – Fuse ATQR – Class CC – Time-Delay 600VAC 300VDC 4A        Ferrule Amp-Trap 2000®

The Mersen ATQR4 fuse is part of the Amp-Trap 2000® series, specifically engineered to provide reliable and long-lasting protection for control circuits, motors, and transformers—especially in demanding industrial environments.

First, thanks to its time-delay function, this Class CC fuse can withstand short-term overcurrents—such as those caused by motor startup—without triggering an unnecessary shutdown. This ensures operational continuity while effectively preventing unplanned downtime.

Next, its compact capsule format allows for quick and easy installation, even in tight control panels or space-constrained enclosures. As a result, it integrates efficiently into a wide range of setups while meeting strict safety standards.

In case of a short circuit, the ATQR4 fuse reacts quickly and accurately, helping to protect your equipment and reduce costly damage, which also helps your electrical system last longer.

Finally, the ATQR4 fuse is known for its reliable performance, long-lasting quality, and easy installation, making it a great choice for industrial systems that need strong equipment protection and continuous operation.

📄 Specification – Mersen Fuse ATQR4 :

• Reference: ATQR4
• Manufacturer: Mersen
• Type: Time-delay fuse
• Class: CC (UL)
• Rated current: 4 A
• Maximum voltage: 600 VAC / 300 VDC
• Technology: Amp-Trap 2000
• Format: Compact capsule
• Applications: Control circuits, motors, coils, transformers
• Compliance: UL Listed, CSA Certified, RoHS

⚙️ Advantages for your electrical installations Mersen Fuse ATQR4 :

• Reliable protection against overloads and short circuits
• Compact design for space-constrained electrical panels
• Tolerates momentaryinrush currents, ideal for soft-start motors
• Easy installation in standard Class CC fuse holders
• Enhanced safety with fast interruption in case of severe faults

✅ Approvals and standards Mersen Fuse ATQR4 :

• UL Listed – Conforms to UL 248-4, guaranteeing recognized safety and performance in North America.
• CSA Certified – Certified by the Canadian Standards Association for safe use in Canada.
• CE – Complies with European directives for free circulation in the European Union.
• RoHS – Complies with the RoHS (Restriction of Hazardous Substances) directive, ensuring the absence of hazardous substances in materials.
• Class CC – North American standard defined by UL for compact fuses with high breaking characteristics.
• Amp-Trap 2000® – Mersen’s proprietary technology, designed to offer a breaking capacity of 200 kA at 600 VAC, ensuring maximum protection against short circuits.

🔧Typical applications Mersen Fuse ATQR4 :

• Electrical distribution panels
• Motor control systems
• Automated industrial systems
• Transformers and power supplies

FUSE HOLDERS RECOMMENDED – Mersen Fuse ATQR4

UltraSafeTM fuse holders with indication / closed

• 31-60A 1-pole closed fuse holder: USM1I
• Fuse holder 31-60A 2-pole closed: US6J2I
• 31-60A 3-pole closed fuse holder: US6J3I

Midget fuse holder Pressure plate connection / Open

• Midget/CC fuse holders 30A 1P 600V open: 30321
• Midget/CC fuse holder 30A 2P 600V open: 30322
• Midget/CC fuse holder 30A 3P 600V open: 30323

To save money, you need to act fast. This lets you fix your equipment quickly and get back to work without delays. Fast action also helps you stay productive and avoid slowdowns.

Every minute of downtime costs money. That’s why it’s so important to respond quickly. The sooner you act, the more you can avoid problems and stay in control. When you place your order now, you can fix the issue faster and keep your costs low. Taking action early also helps you avoid breakdowns and long delivery times. Our service offers fast help and reliable quality. We’re here to support your urgent needs and cut downtime.

By choosing us, you get trusted service, strong performance, and smooth operations—everything you need to stay efficient and competitive.

Available in different amperages : ATQR3 Mersen – Fuse ATQR – Class CC – Time-Delay 600VAC 300VDC 3A Ferrule         Amp-Trap 2000®

CA Product : PFATQR4

Manufacturer : Mersen

SKU : ATQR4

EAN / UPC code : 782001906566

Technical data : Click here!