Mersen 83230108 STPT23-20K150V-2PG Type 2+3 surge protection device for 120/208 V AC TT systems with 20 kA maximum discharge current and pluggable 2-pole design.
Original price was: £63.15.£46.67Current price is: £46.67.
The Mersen 83230108 is a high-performance Type 2+3 surge protection device (SPD) designed to safeguard low-voltage electrical installations against transient overvoltages caused by lightning strikes and switching events. Part of the trusted Mersen Surge-Trap® Pluggable STPT23 Series, it provides coordinated surge protection for 120/208 V AC TT single-phase systems.
Featuring a compact 2-pole pluggable configuration, the device combines line-to-neutral (L-N) and neutral-to-earth (N-PE) protection within a single assembly. Its modular design enables rapid cartridge replacement, reducing maintenance time while ensuring dependable protection for sensitive industrial and commercial equipment.
With a 20 kA maximum discharge current (Imax), 10 kA nominal discharge current (In) and 150 V AC maximum continuous operating voltage (Uc), the Mersen 83230108 is ideal for protecting PLCs, control panels, instrumentation, power supplies and automation systems installed on 120/208 V TT electrical networks.
Surge protection devices help prevent transient overvoltages from damaging sensitive electrical equipment by safely diverting surge energy to earth before it reaches connected loads. Installing an SPD improves equipment reliability, reduces maintenance costs and minimises unexpected downtime.
The Mersen Surge-Trap® STPT23 Series is designed for final-stage surge protection close to sensitive equipment, providing excellent protection for industrial automation, control systems and commercial electrical installations.
| Voltage | 120 V |
|---|---|
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT23 |
| Model | STPT23-20K150V-2PG |
| SKU | 83230108 |
| Product type | Type 2+3 Surge Protection Device |
| SPD classification | IEC Type 2+3 / Class II + III |
| Nominal operating voltage (Un) | 120 V AC |
| System voltage | 120/208 V AC TT |
| Maximum continuous operating voltage (Uc) | 150 V AC |
| Maximum discharge current (Imax) | 20 kA (8/20 μs) |
| Nominal discharge current (In) | 10 kA (8/20 μs) |
| Combined voltage pulse (Uoc) | 10 kV |
| Configuration | TT (1Ph+N) |
| Number of poles | 2 |
| Mounting type | DIN rail |
| Protection rating | IP20 |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
It protects 120/208 V AC TT electrical systems against damaging transient overvoltages caused by lightning and switching events.
The 83230108 is a Type 2+3 / Class II + III surge protection device with combined L-N and N-PE protection.
It is designed for 120/208 V AC TT single-phase systems with a maximum continuous operating voltage of 150 V AC.
Yes. The pluggable design allows the protection cartridges to be replaced quickly, reducing maintenance time.
It is installed on DIN rails inside industrial control panels, switchboards and commercial electrical distribution equipment.
Mersen Surge-Trap® surge protection devices are trusted by electrical engineers, panel builders and maintenance professionals to provide dependable protection for critical industrial and commercial electrical systems.
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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...
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...