Mersen 83120100 Surge-Trap STPT12 Type 1+2 surge protection device, alternative reference STPT12-12K150V-1P, rated at 12.5 kA Iimp with 120 V nominal voltage and 150 V maximum continuous operating voltage.
Original price was: £91.97.£67.96Current price is: £67.96.
The Mersen 83120100 is a compact Type 1+2 surge protection device (SPD) designed to protect low-voltage electrical installations against transient overvoltages caused by lightning strikes and switching events. As part of the Mersen Surge-Trap® Pluggable STPT12 Series, it combines lightning current discharge capability with surge protection in a single pluggable module, making it ideal for industrial and commercial electrical systems.
Featuring a compact DIN rail mounted pluggable design, the 83120100 allows rapid replacement of the protection module without disturbing wiring. Its L-N single-phase configuration makes it suitable for protecting incoming power supplies and sensitive electrical equipment from high-energy surge events.
With a 12.5 kA lightning impulse current rating, a 120 V nominal operating voltage and a 150 V maximum continuous operating voltage (Uc), the Mersen 83120100 provides dependable surge protection for installations requiring coordinated Type 1+2 protection.
The Mersen 83120100 combines lightning current discharge and surge suppression in a single device, helping to protect electrical installations and connected equipment against damaging transient overvoltages. Its pluggable construction simplifies servicing while maintaining reliable protection throughout the life of the installation.
The device is particularly suitable for incoming power supplies in industrial control panels, commercial buildings and facilities requiring coordinated Type 1+2 surge protection in accordance with EN IEC 61643-11.
| Voltage | 120 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT12 Series |
| Model | 83120100 |
| Alternative reference | STPT12-12K150V-1P |
| Product type | Surge protection device |
| SPD classification | Type 1+2 / Class I+II |
| Configuration | L-N |
| Number of poles | 1 pole |
| Nominal operating voltage (Un) | 120 V AC |
| Maximum continuous operating voltage (Uc) | 150 V AC |
| Lightning impulse current (Iimp) | 12.5 kA (10/350 μs) |
| Nominal discharge current (In) | 20 kA (8/20 μs) |
| Protection rating | IP20 |
| Mounting type | 35 mm DIN rail |
| Module width | 1 module |
| Dimensions (H × W × D) | approx. 76 × 18 × 90 mm |
| Weight | approx. 0.143 kg |
| RoHS compliant | Yes |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
The Mersen 83120100 protects low-voltage electrical installations against lightning currents and transient overvoltages caused by switching events.
The 83120100 is a Type 1+2 / Class I+II surge protection device suitable for coordinated lightning and surge protection.
The Mersen 83120100 has a 12.5 kA Iimp lightning impulse current rating using a 10/350 μs waveform.
The device is designed for 120 V AC systems with a maximum continuous operating voltage of 150 V AC.
The pluggable protection module can be replaced quickly during maintenance without removing the complete base from the DIN rail, reducing downtime.
Mersen Surge-Trap® surge protection devices are trusted by electrical engineers and panel builders to provide dependable protection against lightning and transient overvoltages in industrial and commercial installations.
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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...