Mersen 83120008 SP12-100K-N Type 1+2 neutral replacement cartridge with 100 kA lightning impulse current rating and 100 kA maximum discharge current for compatible Surge-Trap surge protection devices.
Original price was: £152.62.£126.70Current price is: £126.70.
The Mersen 83120008, also known as SP12-100K-N, is a high-performance Type 1+2 surge protection replacement cartridge designed for compatible Mersen Surge-Trap pluggable surge protection devices. It is used to help protect electrical installations against lightning currents and transient overvoltages in industrial, commercial and power distribution applications.
As part of the Mersen Surge-Trap STPT12 series, this neutral replacement cartridge is engineered for demanding incoming surge protection systems. Its pluggable format supports straightforward replacement during maintenance, helping restore protection quickly without replacing the complete surge protection assembly.
With a 100 kA lightning impulse current rating, 100 kA maximum discharge current and neutral AC configuration, the Mersen 83120008 is suitable for high-energy surge protection applications where neutral-to-earth protection is required.
Type 1+2 surge protection devices are installed at the origin of electrical installations to discharge lightning currents and limit transient overvoltages before they reach downstream electrical equipment. Neutral cartridges provide dedicated N-PE protection and are commonly used in coordinated surge protection systems for TT and TNS installations.
The Mersen 83120008 replacement cartridge helps maintenance teams restore surge protection functionality quickly and efficiently. Its plug-in design makes it a practical choice for panel builders, electrical contractors and facilities engineers maintaining critical distribution boards and switchgear.
| Phase | Single Phase |
|---|---|
| Manufacturer | Mersen |
| Series | Surge-Trap STPT12 |
| Model | SP12-100K-N |
| Manufacturer part number | 83120008 |
| Product type | Surge protection replacement cartridge |
| SPD classification | Type 1+2 / Class I+II |
| Configuration | Neutral cartridge |
| Protection mode | N-PE |
| Number of poles | 1 pole |
| Nominal operating voltage | Neutral AC |
| Lightning impulse current (Iimp) | 100 kA |
| Maximum discharge current (Imax) | 100 kA |
| Short-circuit withstand rating | 25 kA |
| Protection rating | IP20 |
| Format | Plug-in replaceable cartridge |
The Mersen 83120008 is a neutral replacement cartridge for compatible Mersen Type 1+2 Surge-Trap surge protection devices used in electrical distribution systems.
The alternative product code for Mersen 83120008 is SP12-100K-N.
It provides Type 1+2 / Class I+II surge protection for neutral-to-earth protection applications.
The Mersen 83120008 has a 100 kA lightning impulse current rating.
It is typically installed in compatible Mersen Surge-Trap pluggable surge protection assemblies within main distribution boards, industrial switchboards and incoming supply panels.
Mersen Surge-Trap surge protection products are widely specified by electrical engineers, panel builders and contractors for reliable protection of industrial and commercial electrical installations against lightning currents and transient overvoltages.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...