Why Choose the Mersen 83020150 Surge Protection Device?
The Mersen 83020150 STPT2-40K150V-4P is a dependable Type 2 surge protection device (SPD) designed to protect low-voltage electrical installations against transient overvoltages caused by switching operations and indirect lightning activity. As part of the Mersen Surge-Trap® Pluggable STPT2 Series, it provides reliable protection for commercial, industrial and infrastructure power distribution systems.
This pluggable SPD is built for fast installation, practical maintenance and long-term protection of connected electrical equipment. Its modular cartridge design allows replacement modules to be changed quickly, helping reduce downtime while maintaining effective surge protection across the installation.
With a 40 kA maximum discharge current, 150 V AC maximum continuous operating voltage and 4+0 TNS configuration, the Mersen 83020150 is suitable for 120/208 V AC three-phase plus neutral systems. Its four-pole, four-module DIN rail format makes it ideal for installation inside distribution boards and control panels.
Key Advantages
- Reliable Type 2 surge protection device for low-voltage electrical systems.
- 40 kA maximum discharge current for effective transient overvoltage protection.
- Designed for 120/208 V AC three-phase plus neutral systems.
- 4+0 TNS configuration suitable for TNS earthing arrangements.
- Pluggable cartridge design supports quick replacement during maintenance.
- Compact DIN rail mounting for distribution boards and electrical panels.
Key Features
- Mersen Surge-Trap® Pluggable STPT2 Series.
- Type 2 / Class II surge protection.
- 40 kA Imax (8/20 μs) maximum discharge current.
- 20 kA In (8/20 μs) nominal discharge current.
- 120/208 V AC nominal operating voltage.
- 150 V AC Uc maximum continuous operating voltage.
- 3Ph+N electrical system configuration.
- 4+0 TNS protection arrangement.
- Four-pole, four-module pluggable construction.
- Visual indication for protection status monitoring.
Reliable Surge Protection for Electrical Distribution
Type 2 surge protection devices are installed in distribution boards and control panels to limit transient overvoltages before they reach sensitive connected equipment. They help protect automation controls, power supplies, monitoring devices, drives and building electrical systems from damaging voltage spikes.
The Mersen STPT2-40K150V-4P combines strong surge discharge performance with a practical pluggable construction, making it a dependable choice for electrical contractors, panel builders and maintenance engineers working on commercial and industrial power distribution systems.
Typical Applications
- Three-phase electrical distribution boards.
- Commercial building power systems.
- Industrial control panels.
- Manufacturing and automation equipment.
- Building services and infrastructure installations.
- Panel building and electrical protection upgrades.
