Why Choose the Mersen ATQR10 Time-Delay Fuse?
The Mersen ATQR10 is a 10 A Class CC time-delay fuse designed to provide dependable branch-circuit protection for industrial control systems, control transformers and other equipment subject to temporary inrush currents. Part of the Mersen Amp-Trap 2000® ATQR series, it combines high current-limiting performance with a compact rejection-style cartridge design for reliable industrial protection.
Rated at 600 V AC and 300 V DC, the ATQR10 is engineered to withstand the temporary current surges produced when transformers, relays, solenoids and similar inductive loads are energised. Its time-delay characteristic helps prevent nuisance fuse operation while maintaining excellent protection against sustained overloads and short-circuit faults.
The ATQR10 uses the standard Class CC rejection cartridge format, preventing installation in ordinary non-rejection fuse holders. When installed in a compatible Class CC fuse holder, it provides compact, high-performance branch-circuit protection for industrial control panels, machinery and automation systems.
Key Advantages
- Class CC branch-circuit protection for industrial electrical equipment.
- 10 A current rating suitable for industrial control and transformer circuits.
- 600 V AC / 300 V DC rating for demanding applications.
- Time-delay characteristic accommodates transformer and inductive-load inrush currents.
- Current-limiting construction helps reduce damaging fault energy.
- Rejection-style body helps prevent installation of the wrong fuse type.
Key Features
- Mersen Amp-Trap 2000® ATQR series.
- 10 A rated current.
- 600 V AC / 300 V DC rated voltage.
- Class CC time-delay fuse.
- Current-limiting operation.
- 200 kA RMS symmetrical interrupting rating.
- Ferrule-style cartridge terminals.
- Compatible with Class CC rejection fuse holders.
The Mersen ATQR10 is designed for circuits where control transformers and inductive loads generate temporary magnetising currents during start-up. Its time-delay characteristic allows these normal operating conditions while providing dependable protection against overloads and short-circuit faults.
Its Class CC current-limiting construction rapidly interrupts high fault currents, helping reduce thermal and mechanical stress on wiring, terminals and downstream equipment. The rejection design also ensures only the correct Class CC fuse can be installed.
Typical Applications
- Industrial control transformers.
- PLC and automation control panels.
- Motor-control auxiliary circuits.
- Relay and solenoid circuits.
- OEM machinery.
- Industrial branch circuits.
