Why Choose the Mersen ATQR15 Class CC Fuse?
The Mersen ATQR15 is a compact and dependable Class CC time-delay fuse designed to protect control transformers, solenoids, contactors, relays and other inductive electrical loads. Part of the established Mersen Amp-Trap® 2000 ATQR series, it combines current-limiting performance with the ability to withstand temporary inrush currents during transformer energisation and equipment start-up.
Its time-delay operating characteristic helps prevent unnecessary fuse operation under normal inrush conditions while providing rapid interruption of damaging short circuits and sustained overcurrents. The Class CC rejection-style design also helps prevent the installation of incompatible fuse types when the ATQR15 is used with a suitable rejection fuse holder.
With a rated current of 15 A, a maximum AC voltage rating of 600 V and a DC voltage rating of up to 300 V, the ATQR15 is well suited to industrial control panels, machinery and automation systems. Its compact cylindrical format enables space-efficient installation while its high interrupting capacity supports reliable protection in demanding electrical environments.
Key Advantages
- Compact Class CC time-delay fuse for industrial control applications.
- 15 A current rating for transformers and inductive electrical loads.
- 600 V AC and 300 V DC voltage ratings for versatile industrial use.
- Time-delay operation withstands normal transformer and equipment inrush currents.
- Current-limiting construction helps reduce damaging fault energy.
- Rejection-style design helps prevent the installation of unsuitable replacement fuses.
Key Features
- Mersen Amp-Trap® 2000 ATQR series.
- 15 A rated current.
- 600 V AC maximum voltage rating.
- 300 V DC maximum voltage rating.
- Class CC rejection-style cylindrical construction.
- Time-delay characteristic for inductive load protection.
- High interrupting capacity for demanding industrial circuits.
- Compact ferrule format for space-efficient panel installation.
Control transformers and inductive components can draw a temporary surge of current when energised. The Mersen ATQR15 is designed to tolerate this normal inrush current, helping reduce nuisance fuse operation while maintaining effective protection against sustained overloads and short circuits.
During a high-level fault, its current-limiting construction restricts the peak current and energy passing through the circuit. This helps protect transformers, conductors, contactors and downstream control equipment while reducing the likelihood of extensive damage and unplanned production downtime.
Typical Applications
- Industrial control transformers.
- Solenoids, relays and contactors.
- Motor control centres and electrical panels.
- Machine tools and automated production machinery.
- Heating, ventilation and air-conditioning control circuits.
- OEM machinery and industrial automation systems.
