Why Choose the Mersen A3T70 Amp-Trap Class T Fuse?
The Mersen A3T70 is a compact, high-performance Amp-Trap 2000 Class T fast-acting fuse designed to protect industrial electrical equipment, conductors and power distribution circuits against damaging overcurrent and short-circuit conditions. Its current-limiting construction provides rapid fault interruption while helping to reduce the thermal and mechanical stresses imposed on downstream components.
Rated at 70 A, 300 V AC and up to 160 V DC, the Mersen A3T70 combines a compact physical footprint with dependable high-fault-current interruption. This makes it particularly suitable for electrical panels and equipment where installation space is restricted but effective short-circuit protection remains essential.
The A3T70 is commonly specified for industrial control panels, power conversion equipment, distribution circuits and machinery. Its Class T design supports installation in compatible fuse holders and fused disconnect equipment while providing effective protection for cables, controls and connected electrical apparatus.
Key Advantages
- Compact Class T fast-acting fuse for space-constrained installations.
- 70 A rated current for industrial equipment and distribution circuits.
- 300 V AC and 160 V DC voltage ratings.
- Current-limiting performance helps reduce damaging let-through energy.
- Rapid interruption of high-level short-circuit currents.
- Helps protect conductors, switchgear and connected electrical equipment.
Key Features
- Mersen Amp-Trap 2000 A3T series.
- 70 A nominal current rating.
- 300 V AC / 160 V DC rated voltage.
- Fast-acting Class T current-limiting construction.
- Compact body for efficient use of panel space.
- Blade-style terminal configuration.
- Designed for compatible Class T fuse holders and disconnects.
- Single-use replaceable overcurrent protection device.
High-Performance Current-Limiting Protection
During a serious electrical fault, the Mersen A3T70 interrupts the circuit and limits the peak current and electrical energy permitted to flow downstream. This current-limiting action can help reduce damage to cables, contactors, power supplies, disconnect equipment and other connected components.
Its compact Class T format delivers effective fault-clearing performance without requiring the installation space associated with many larger fuse designs. This makes the A3T70 well suited to modern control cabinets, power conversion systems and industrial equipment where efficient use of panel space is important.
Typical Applications
- Industrial control panels.
- Power supplies and power conversion equipment.
- Branch and feeder circuit protection.
- Electrical distribution assemblies.
- Industrial machinery and automation systems.
- Compact switchgear and fused disconnect equipment.
