Why Choose the Mersen A3T50 Class T Fast-Acting Fuse?
The Mersen A3T50 is a high-performance Class T fast-acting fuse designed to deliver exceptional overcurrent protection for industrial and commercial electrical systems. As part of the trusted Mersen Amp-Trap® A3T series, it combines outstanding current-limiting performance with a compact design, helping protect critical equipment from damaging short circuits and fault currents.
Its unique Class T dimensions prevent substitution with lower-rated fuse classes, ensuring installations remain compliant while maintaining the highest levels of protection. The glass melamine body provides excellent dimensional stability and durability, making it suitable for demanding industrial environments.
With a 50 A current rating, 300 V AC / 160 V DC voltage rating and fast-acting operation, the Mersen A3T50 is widely used in switchboards, panelboards, load centres, metering equipment and industrial power distribution systems requiring rapid fault interruption.
Key Advantages
- Compact Class T fast-acting fuse for industrial electrical protection.
- 50 A current rating for branch circuit and equipment protection.
- 300 V AC / 160 V DC rated voltage.
- Extremely current-limiting performance helps minimise equipment damage.
- Unique Class T dimensions prevent incorrect fuse replacement.
- Compact design allows installation where space is limited.
Key Features
- Mersen Amp-Trap® A3T Class T fuse series.
- Fast-acting fuse characteristic.
- 50 A rated current.
- 300 V AC / 160 V DC voltage rating.
- 50 / 60 Hz operation.
- Ferrule terminal design.
- Glass melamine body for superior dimensional stability.
- High interrupting capacity for industrial applications.
Reliable Circuit Protection for Industrial Systems
The Mersen A3T50 is engineered to clear fault currents rapidly, reducing thermal and mechanical stress on downstream electrical equipment. Its exceptional current-limiting performance helps extend the service life of electrical components while improving overall system reliability.
The Amp-Trap® A3T range is widely specified by electrical engineers, OEMs and panel builders for applications where dependable overcurrent protection, compact installation and compliance with Class T requirements are essential.
Typical Applications
- Industrial switchboards.
- Electrical panelboards.
- Load centres.
- Circuit breaker protection.
- Metering equipment.
- Commercial and industrial power distribution systems.
