Why Choose the Mersen ATQR2-1/4 Class CC Fuse?
The Mersen ATQR2-1/4 is a high-performance Class CC time-delay fuse engineered to provide reliable overcurrent protection for industrial control transformers, solenoids, relays, contactors and other inductive electrical loads. As part of the trusted Mersen Amp-Trap® 2000 ATQR series, it combines superior current-limiting performance with a time-delay characteristic that tolerates transformer inrush currents while delivering rapid protection against overloads and short circuits.
Its rejection-style Class CC design helps prevent incorrect fuse replacement when installed in compatible Class CC fuse holders, improving system safety and reliability. The compact ferrule construction also makes it ideal for space-constrained industrial control panels and OEM machinery.
With a rated current of 2.25 A, a maximum voltage rating of 600 V AC and 300 V DC, the ATQR2-1/4 is ideally suited to industrial automation, machinery and branch circuit protection applications requiring dependable low-current protection.
Key Advantages
- Compact Class CC time-delay fuse for industrial control circuits.
- 2.25 A current rating for transformer and inductive load protection.
- 600 V AC and 300 V DC voltage ratings.
- Time-delay characteristic withstands normal transformer inrush currents.
- Highly current-limiting design reduces fault energy.
- Rejection-style construction helps prevent incorrect fuse replacement.
Key Features
- Mersen Amp-Trap® 2000 ATQR series.
- 2.25 A rated current.
- 600 V AC maximum voltage.
- 300 V DC maximum voltage.
- Class CC rejection-style ferrule fuse.
- Time-delay characteristic.
- 200 kA AC interrupting rating.
- Compact 10.3 × 38.1 mm cylindrical construction.
Reliable Protection for Industrial Control Systems
The Mersen ATQR2-1/4 is specifically designed to protect industrial control transformers and inductive equipment. Its time-delay characteristic allows normal transformer magnetising current and equipment start-up surges to pass without nuisance operation while maintaining rapid protection against sustained overloads and short circuits.
Its advanced current-limiting construction helps reduce thermal and mechanical stress during electrical faults, protecting valuable equipment, reducing maintenance costs and improving the reliability of industrial automation systems.
Typical Applications
- Industrial control transformers.
- Control panels and switchboards.
- Relays, solenoids and contactors.
- Motor control circuits.
- OEM machinery.
- Industrial automation equipment.
