Why Choose the Mersen STPT2-40K75V-2P Surge Protection Device?
The Mersen STPT2-40K75V-2P (Part Number 83020130) is a high-performance Type 2 surge protection device (SPD) designed to protect low-voltage electrical installations against transient overvoltages caused by lightning activity and electrical switching events. As part of the Mersen Surge-Trap® Pluggable STPT2 Series, it provides reliable protection for industrial, commercial and infrastructure electrical systems.
Featuring a 40 kA maximum discharge current (Imax), 75 V maximum continuous operating voltage (Uc) and pluggable modular construction, this SPD supports straightforward installation and maintenance. Its replaceable cartridge format helps reduce downtime while allowing quick servicing inside electrical panels.
Designed for 60 V nominal systems with a 1Ph+N, 2+0 TNS configuration, the STPT2-40K75V-2P is well suited to protecting control circuits, telecommunications equipment, signalling systems, automation panels and low-voltage electrical distribution installations.
Key Advantages
- Reliable Type 2 surge protection device for low-voltage systems.
- 40 kA maximum discharge current for effective transient overvoltage protection.
- 75 V maximum continuous operating voltage.
- Pluggable cartridge design simplifies replacement and maintenance.
- Compact 2-pole DIN rail mounting format for control panels.
- Suitable for industrial, commercial and infrastructure applications.
Key Features
- Mersen Surge-Trap® Pluggable STPT2 Series.
- Type 2 / Class II surge protection device.
- 40 kA Imax maximum discharge current using 8/20 μs waveform.
- 20 kA nominal discharge current (In).
- 60 V nominal operating voltage.
- 75 V maximum continuous operating voltage (Uc).
- 1Ph+N, 2+0 TNS configuration.
- 2-pole, 2-module pluggable construction.
- Visual indication system for device status.
- DIN rail mounting for electrical panels.
Reliable Surge Protection for Low-Voltage Installations
Type 2 surge protection devices are installed within electrical distribution systems to help limit transient overvoltages before they reach sensitive connected equipment. This helps minimise equipment damage, reduce downtime and improve the reliability of critical systems.
The Mersen STPT2 pluggable range combines high discharge capability with replaceable modules and clear device status indication, making it suitable for preventative maintenance in control panels, low-voltage switchgear and distribution boards.
Typical Applications
- Industrial control panels.
- Low-voltage distribution boards.
- Automation and signalling circuits.
- Telecommunications equipment.
- Building services and facilities systems.
- Instrumentation and process control panels.
- Electrical installations requiring 60 V surge protection.
