Why Choose the Mersen ATDR4-1/2 Class CC Fuse?
The Mersen ATDR4-1/2 is a premium Class CC time-delay industrial fuse engineered to provide reliable overcurrent and short-circuit protection for motors, transformers, industrial control panels and branch circuits. As part of the proven Mersen Amp-Trap 2000® ATDR series, it combines exceptional current-limiting performance with excellent time-delay characteristics, allowing normal equipment inrush currents while safeguarding valuable electrical equipment.
Designed for demanding industrial applications, the ATDR4-1/2 helps minimise downtime by protecting increasingly sensitive electrical systems from damaging fault currents. Its rejection-style Class CC construction ensures correct fuse replacement when used with compatible Class CC fuse holders while providing dependable protection for modern industrial installations.
With a 4.5 A current rating, 600 V AC and 300 V DC voltage ratings, the Mersen ATDR4-1/2 is ideal for motor branch circuits, industrial automation systems, OEM machinery and control transformer protection.
Key Advantages
- Compact Class CC time-delay fuse for industrial branch circuit protection.
- 4.5 A current rating for motors, transformers and control circuits.
- 600 V AC and 300 V DC voltage ratings.
- Time-delay characteristics reduce nuisance operation during motor start-up.
- Highly current-limiting design minimises fault energy reaching equipment.
- Rejection-style Class CC construction prevents incorrect fuse replacement.
Key Features
- Mersen Amp-Trap 2000® ATDR series.
- 4.5 A rated current.
- 600 V AC / 300 V DC rated voltage.
- Class CC time-delay current-limiting fuse.
- Excellent cycling capability for frequently started small motors.
- Provides IEC Type 2 "No Damage" protection when correctly coordinated.
- Compact cylindrical ferrule construction.
- Compatible with Class CC rejection-style fuse holders.
Reliable Protection for Industrial Electrical Systems
The Mersen ATDR4-1/2 delivers dependable protection by allowing temporary motor and transformer inrush currents while rapidly clearing overloads and short-circuit faults. Its highly current-limiting design helps reduce thermal and mechanical stress on downstream electrical equipment, extending service life and reducing maintenance costs.
The Amp-Trap 2000® ATDR range is widely specified by electrical engineers, panel builders and OEM machine manufacturers seeking compact, reliable branch circuit protection for modern industrial installations.
Typical Applications
- Industrial control panels.
- Motor branch circuit protection.
- Control transformers.
- PLC and automation systems.
- OEM machinery and manufacturing equipment.
- Contactors, relays and control circuits.
