Why Choose the Mersen A3T1200 Amp-Trap® Class T Fuse?
The Mersen A3T1200 is a heavy-duty, fast-acting Class T current-limiting fuse engineered to provide outstanding protection for high-current electrical distribution systems. As part of the trusted Mersen Amp-Trap® A3T series, it delivers exceptional current limitation and rapid fault interruption to safeguard valuable equipment against severe short circuits and overcurrent conditions.
Designed for demanding industrial and commercial environments, the A3T1200 combines an extremely high interrupting capacity with a compact footprint. Its unique Class T dimensions prevent substitution with lower-rated fuse classes, while the robust glass melamine body provides excellent dimensional stability and long-term reliability.
With a rated current of 1200 A, a 300 V AC rating and a 160 V DC rating, the Mersen A3T1200 is ideally suited to switchboards, panelboards, load centres, motor control centres and industrial power distribution systems requiring dependable high-capacity circuit protection.
Key Advantages
- Fast-acting Class T current-limiting fuse for high-current electrical protection.
- 1200 A rated current for demanding industrial applications.
- 300 V AC and 160 V DC voltage ratings.
- Extremely current-limiting design reduces peak fault current.
- High interrupting capacity helps protect expensive electrical equipment.
- Compact Class T construction maximises panel design flexibility.
Key Features
- Mersen Amp-Trap® A3T series.
- UL Class T fuse.
- 1200 A rated current.
- 300 V AC / 160 V DC rated voltage.
- Fast-acting current-limiting characteristic.
- Glass melamine body for dimensional stability.
- Blade-stamped catalogue number for permanent identification.
- Designed for high fault current industrial applications.
Reliable Current-Limiting Protection for High-Power Systems
Current-limiting fuses such as the Mersen A3T1200 interrupt fault currents before they reach their maximum prospective value. This significantly reduces thermal and mechanical stress on switchgear, conductors and downstream equipment, helping minimise damage and improve system reliability.
The Amp-Trap® A3T series is widely specified for high-capacity electrical distribution systems where compact installation, rapid fault clearance and dependable protection are essential for safe operation.
Typical Applications
- Industrial switchboards.
- Panelboards and load centres.
- Motor control centres.
- Power distribution systems.
- Heavy industrial machinery.
- Commercial electrical installations.
- High-current protection systems.
