Why Choose the Mersen 83120108 Surge Protection Device?
The Mersen 83120108 STPT12-25K-N is a compact and dependable Type 1+2 surge protection device (SPD) designed for neutral protection in low-voltage electrical installations. Part of the Mersen Surge-Trap® Pluggable STPT12 Series, it is suitable for incoming supply panels, main distribution boards and systems requiring robust lightning current and transient overvoltage protection.
This surge protection module is designed for use in the neutral path of surge protection arrangements, helping discharge high-energy surge currents safely and reliably. Its pluggable single-module construction supports straightforward installation and fast replacement during maintenance.
With a 25 kA lightning impulse current (10/350 μs), neutral protection configuration and 1-pole pluggable format, the 83120108 provides reliable protection as part of coordinated surge protection systems for industrial, commercial and infrastructure applications.
Key Advantages
- Type 1+2 surge protection device for lightning current and transient overvoltage protection.
- 25 kA Iimp (10/350 μs) lightning impulse current rating.
- Designed for neutral protection in low-voltage electrical systems.
- Compact 1-pole pluggable design for DIN rail installation.
- 1-module width for space-efficient panel layouts.
- Suitable for use in coordinated surge protection assemblies.
Key Features
- Mersen Surge-Trap® STPT12 Series.
- Catalogue number: 83120108.
- Model: STPT12-25K-N.
- IEC Type 1+2 / Class I+II surge protection.
- 25 kA lightning impulse current.
- Neutral module for N protection.
- 1-pole, 1-module pluggable format.
- DIN rail mounting.
- Suitable for main distribution board installation.
- Designed for use with compatible Mersen STPT12 surge protection devices.
Reliable Neutral Protection for Surge Protection Systems
Neutral surge protection modules are used within coordinated SPD arrangements to help manage surge currents safely in low-voltage electrical systems. When installed correctly, they help protect downstream equipment from the damaging effects of lightning currents and transient voltage spikes.
The Mersen STPT12 Series is engineered for demanding electrical installations where dependable protection, compact design and simple maintenance are required. The pluggable format allows the protection module to be replaced quickly without rewiring the complete assembly.
Typical Applications
- Main electrical distribution boards.
- Incoming power supply panels.
- Industrial automation systems.
- Commercial building installations.
- Control panels and machinery supplies.
- Infrastructure and critical power systems.
