Why Choose the Mersen A4J200 Amp-Trap 2000 Fuse?
The Mersen A4J200 is a high-performance Class J fast-acting fuse designed to provide dependable overcurrent and short-circuit protection for industrial and commercial electrical systems. As part of the established Mersen Amp-Trap 2000 A4J series, it delivers rapid fault interruption and effective current limitation for feeders, distribution circuits and equipment serving non-inductive loads.
This industrial fuse helps restrict damaging peak currents and reduce the fault energy passed to downstream electrical components. Its fast-acting response protects conductors, switches, contactors and other equipment from the severe thermal and mechanical stresses associated with high short-circuit currents.
With a rated current of 200 A and voltage ratings of up to 600 V AC and 500 V DC, the A4J200 is suitable for demanding power distribution and equipment-protection applications. Its compact Class J rejection design helps conserve enclosure space while reducing the risk of installing an unsuitable fuse class.
Key Advantages
- Fast-acting Class J fuse for industrial circuit protection.
- 200 A current rating for feeders and equipment circuits.
- 600 V AC and 500 V DC ratings for versatile system compatibility.
- Current-limiting operation helps reduce damaging let-through energy.
- High interrupting capacity supports demanding industrial installations.
- Class J rejection dimensions help prevent incorrect fuse substitution.
Key Features
- Mersen Amp-Trap 2000 A4J series.
- 200 A rated current.
- 600 V AC voltage rating.
- 500 V DC voltage rating.
- Fast-acting current-limiting operation.
- Class J rejection-style construction.
- Blade-style terminals for compatible fuse holders.
- Suitable for feeder, branch-circuit and equipment protection.
Reliable Protection for Industrial Electrical Circuits
Current-limiting fuses such as the Mersen A4J200 interrupt high fault currents before they can reach their maximum available level. This rapid response reduces the peak current and total energy that downstream equipment must withstand, helping minimise component damage, electrical hazards and unplanned system downtime.
The A4J series is designed for applications requiring fast fault response, high interrupting capacity and compact installation dimensions. Its Class J construction makes it suitable for modern electrical panels, switchboards and industrial distribution systems where dependable protection and efficient use of enclosure space are essential.
Typical Applications
- Industrial power distribution systems.
- Feeder and branch-circuit protection.
- Electrical control panels and switchboards.
- Lighting and heating circuits.
- Resistive and non-inductive loads.
- Machinery and production equipment.
