Mersen 83120106 STPT12-12K440V-1P Type 1+2 surge protection device with 12.5 kA lightning impulse current, 400 V nominal operating voltage, 440 V maximum continuous operating voltage and pluggable 1-pole DIN rail design.
£86.86
The Mersen 83120106 STPT12-12K440V-1P is a compact and reliable Type 1+2 surge protection device (SPD) designed to protect low-voltage electrical installations against lightning currents and transient overvoltages. Part of the Mersen Surge-Trap® Pluggable STPT12 Series, it is suitable for use as the first level of protection in main distribution boards and incoming power supply panels.
This surge protection device combines lightning current discharge capability with effective transient voltage protection in a slim, single-pole pluggable format. Its replaceable cartridge design supports fast maintenance, while visual status indication helps identify when the module requires replacement.
With a 12.5 kA lightning impulse current (10/350 μs), 440 V maximum continuous operating voltage (Uc) and 400 V nominal operating voltage (Un), the 83120106 provides dependable L-N protection for industrial, commercial and infrastructure electrical installations.
Surge protection devices help protect electrical equipment from damaging voltage spikes caused by lightning activity, switching operations and network disturbances. Installing a Type 1+2 SPD at the incoming supply point helps reduce the risk of equipment failure, downtime and disruption to critical electrical systems.
The Mersen STPT12 Series is engineered for low-voltage distribution applications where dependable surge protection and simple maintenance are required. The pluggable cartridge format allows the protection module to be replaced quickly without rewiring the complete base.
| Voltage | 400 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT12 |
| Model | STPT12-12K440V-1P |
| Part number | 83120106 |
| Product type | Type 1+2 Surge Protection Device |
| IEC classification | Class I+II |
| Lightning impulse current (Iimp 10/350 μs) | 12.5 kA |
| Maximum discharge current (Imax 8/20 μs) | 50 kA |
| Nominal discharge current (In 8/20 μs) | 20 kA |
| Nominal operating voltage (Un) | 400 V AC |
| Maximum continuous operating voltage (Uc) | 440 V AC |
| Protection mode | L-N |
| Number of poles | 1 |
| Module width | 1 module |
| Mounting type | DIN rail |
| Protection rating | IP20 |
| Format | Pluggable |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
It is used to protect low-voltage electrical installations from lightning currents and transient overvoltages.
The 83120106 is a Type 1+2 (Class I+II) surge protection device for combined lightning current and surge protection.
It has a 400 V AC nominal operating voltage and a 440 V AC maximum continuous operating voltage.
Yes. It uses a pluggable cartridge design, allowing quick replacement of the surge protection module.
It is typically installed on a DIN rail in main distribution boards or incoming supply panels as the first level of surge protection.
Mersen Surge-Trap® surge protection devices are trusted worldwide to help protect electrical installations, industrial equipment and critical infrastructure from the damaging effects of lightning strikes and transient overvoltages.
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