Mersen STPT23-20K275V-4PG-LF Type 2+3 leakage current free surge protection device with 20 kA discharge capacity, 275 V AC operating voltage and 3+1 TT configuration.
Original price was: £118.57.£87.62Current price is: £87.62.
The Mersen 83230130 is a high performance Type 2+3 Surge Protection Device (SPD) designed to protect low voltage electrical installations against transient overvoltages. Part of the Mersen Surge-Trap® Pluggable STPT23 LF Series, this device provides reliable protection for three-phase plus neutral electrical systems used in commercial, industrial and automation environments.
Designed for installation as the final stage of surge protection, the device helps safeguard sensitive electrical equipment from voltage spikes caused by lightning strikes and switching operations. Its pluggable modular design enables rapid cartridge replacement while reducing maintenance time and ensuring continued protection.
With a maximum discharge current of 20 kA (8/20 μs), a 275 V AC continuous operating voltage (Uc) and a 3+1 TT configuration, the Mersen 83230130 is ideal for protecting switchboards, control panels, PLCs, drives and industrial automation equipment operating on 230/400 V AC systems.
Surge protection devices safely divert transient overvoltages away from connected equipment before they can cause insulation failure, electronic damage or costly downtime. Installing an SPD helps improve equipment reliability while extending the operational life of sensitive electrical systems.
The Mersen Surge-Trap® STPT23 LF Series is designed as the final stage of protection in low voltage installations where upstream Type 2 protection is already installed, making it suitable for industrial automation, commercial buildings, switchboards and machinery applications.
| Voltage | 208 V |
|---|---|
| Phase | Three Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT23 LF Series |
| Model | STPT23-20K275V-4PG-LF |
| SKU | 83230130 |
| Product type | Surge Protection Device (SPD) |
| SPD classification | Type 2+3 / Class II+III |
| Maximum discharge current (Imax) | 20 kA (8/20 μs) |
| Nominal discharge current (In) | 10 kA |
| Combined voltage pulse (Uoc) | 10 kV |
| Continuous operating voltage (Uc) | 275 V AC |
| Nominal operating voltage (Un) | 230/400 V AC |
| System configuration | 3+1 TT |
| Number of poles | 4 |
| Number of modules | 4 |
| Mounting type | DIN rail |
| Protection rating | IP20 |
| Short circuit withstand (ISCCR) | 25 kA |
| Maximum back-up fuse | 63 A gG |
| Response time | 25 ns |
| RoHS compliant | Yes |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
It protects low voltage electrical installations and connected equipment against transient overvoltages caused by lightning strikes and switching events.
The Mersen 83230130 is a Type 2+3 / Class II+III surge protection device.
It is designed for 230/400 V AC three-phase plus neutral TT systems using a 3+1 configuration.
The device provides a maximum discharge current of 20 kA (8/20 μs) with a nominal discharge current of 10 kA.
The Mersen 83230130 features a pluggable four-module DIN rail design, allowing quick installation and straightforward maintenance.
Mersen Surge-Trap® surge protection devices are trusted by electrical engineers, panel builders and industrial maintenance professionals to protect critical electrical infrastructure against damaging transient overvoltages.
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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...