Why Choose the Mersen ATQ1 Time-Delay Midget Fuse?
The Mersen ATQ1 is a compact time-delay midget fuse designed to provide dependable overcurrent protection for control circuits, transformers, solenoids and other industrial electrical loads. As part of the established Mersen Amp-Trap® ATQ series, it can withstand normal temporary current surges while responding effectively to sustained overloads and short circuit conditions.
Its time-delay operating characteristic helps prevent unnecessary fuse operation during transformer energisation, motor starting and other brief inrush-current events. This makes the ATQ1 a practical choice for industrial control panels and equipment where a fast-acting fuse may open during normal start-up conditions.
With a rated current of 1 A and a voltage rating of up to 500 V AC, the Mersen ATQ1 delivers compact and reliable protection for supplementary circuits, control equipment and low-current industrial applications.
Key Advantages
- Time-delay operation accommodates temporary inrush currents.
- 1 A current rating for low-current control and equipment circuits.
- Rated for applications operating at up to 500 V AC.
- Helps reduce nuisance fuse operation during equipment start-up.
- Compact midget format conserves space inside electrical enclosures.
- Suitable for transformers, solenoids, relays and industrial controls.
Key Features
- Mersen Amp-Trap® ATQ series.
- Time-delay midget fuse.
- 1 A ampere rating.
- 500 V AC rated voltage.
- Designed to tolerate normal temporary current surges.
- Cylindrical ferrule construction.
- Compact 10 × 38 mm nominal fuse format.
- Suitable for supplementary overcurrent protection.
Reliable Time-Delay Protection for Control Equipment
Transformers, solenoids and other inductive devices can draw a temporary surge of current when they are first energised. The time-delay characteristic of the Mersen ATQ1 allows these normal short-duration surges to pass without unnecessary fuse operation, while still providing protection against sustained overloads.
This operating behaviour can improve equipment availability and reduce maintenance caused by nuisance fuse replacement. The ATQ1 is therefore well suited to industrial circuits requiring a compact 1 A fuse that balances inrush tolerance with dependable overcurrent protection.
Typical Applications
- Industrial control panels.
- Control transformers.
- Solenoids and electromagnetic devices.
- Relay and contactor circuits.
- Instrumentation and monitoring equipment.
- Lighting control circuits.
- OEM machinery and electrical assemblies.
- Supplementary circuit protection.
