Why Choose the Mersen HSJ35 High Speed Class J Fuse?
The Mersen HSJ35 is a high performance Class J high speed semiconductor fuse designed to provide dependable branch circuit protection and rapid protection for sensitive power electronic components. As part of the established Mersen Amp-Trap HSJ Series, it combines the low let-through energy of a semiconductor fuse with the branch circuit capabilities of a Class J fuse.
Engineered for industrial power and automation applications, the HSJ35 clears damaging fault currents quickly to help protect diodes, SCRs, GTOs, IGBTs, solid state relays and related semiconductor devices. Its high speed operating characteristics help reduce the thermal and electrical stress placed on valuable equipment during short circuits and severe overcurrent conditions.
With a rated current of 35 A, an AC voltage rating of 600 V and a DC voltage rating of 500 V, the Mersen HSJ35 is suitable for variable frequency drives, soft starters, power conversion equipment and industrial control panels. Its compact ferrule construction enables straightforward installation in compatible Class J fuse holders.
Key Advantages
- High speed Class J fuse for semiconductor and branch circuit protection.
- 35 A current rating for industrial control and power equipment.
- 600 V AC and 500 V DC ratings for versatile circuit protection.
- Low let-through energy helps minimise damage to sensitive electronics.
- Rapid fault clearing can reduce equipment downtime and repair costs.
- Compact ferrule design for compatible clip-mounted fuse holders.
Key Features
- Mersen Amp-Trap HSJ high speed fuse series.
- 35 A rated current.
- 600 V AC / 500 V DC rated voltage.
- 50 / 60 Hz operating frequency.
- Class J branch circuit protection.
- Low I²t performance for semiconductor protection.
- High interrupting capacity for industrial electrical systems.
- Ferrule terminals for secure clip mounting.
Reliable Protection for Industrial Power Electronics
High speed fuses such as the Mersen HSJ35 are designed to interrupt short-circuit currents before excessive fault energy can damage semiconductor components. By limiting peak current and let-through energy, the fuse helps protect electronic switching devices that may be more vulnerable than conventional cables and electrical equipment.
The HSJ35 combines high speed semiconductor protection with Class J branch circuit performance, helping simplify electrical panel design. This makes it a practical protective solution for industrial systems containing motor drives, electronic controllers and power conversion assemblies.
Typical Applications
- Variable frequency drives and motor controllers.
- Industrial control panels and automation systems.
- Soft starters and solid state relays.
- Power converters, inverters and rectifiers.
- SCR, GTO, IGBT and diode protection circuits.
- Industrial power supplies and OEM machinery.
