Mersen 83230136 STPT23-20K275V-4P-LF Type 2+3 leakage current free surge protection device with 20 kA discharge capacity, 275 V AC continuous operating voltage and 4+0 TNS configuration.
£130.42
The Mersen 83230136 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 leakage current free device provides dependable protection for three-phase plus neutral electrical systems in commercial, industrial and automation environments.
Engineered for DIN rail installation, this pluggable SPD helps safeguard sensitive electrical equipment from voltage spikes caused by lightning activity, switching operations and network disturbances. Its compact modular format allows fast cartridge replacement, supporting straightforward maintenance and reduced downtime.
With a maximum discharge current of 20 kA (8/20 μs), a 275 V AC continuous operating voltage (Uc) and a 4+0 TNS configuration, the Mersen 83230136 is ideal for protecting distribution boards, switchboards, PLC systems, drives and industrial control equipment operating on 230/400 V AC electrical 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 system reliability while extending the operational life of sensitive electrical and automation equipment.
The Mersen Surge-Trap® STPT23 LF Series is designed as a final stage of protection in low voltage installations where upstream Type 2 protection is already installed, making it suitable for use close to the equipment being protected in switchboards, control panels and machinery systems.
| Voltage | 400 V |
|---|---|
| Phase | Three Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT23 LF Series |
| Model | STPT23-20K275V-4P-LF |
| SKU | 83230136 |
| 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 | 4+0 TNS |
| Number of poles | 4 |
| Number of modules | 4 |
| Mounting type | DIN rail |
| Format | Pluggable modular device |
| Protection rating | IP20 |
| Short circuit withstand (ISCCR) | 25 kA |
| Maximum back-up fuse | 63 A gG |
| Response time | 25 ns |
| RoHS compliant | Yes |
| EAN/UPC | 8435297852360 |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
It is used to protect low voltage electrical installations and connected equipment from transient overvoltages caused by lightning activity, switching events and electrical disturbances.
The Mersen 83230136 is a Type 2+3 / Class II+III surge protection device.
It is designed for 230/400 V AC three-phase plus neutral TNS systems using a 4+0 configuration.
The device provides a maximum discharge current of 20 kA (8/20 μs) with a nominal discharge current of 10 kA.
Yes. It is part of the leakage current free STPT23 LF Series, helping reduce continuous leakage current during normal operation.
Mersen Surge-Trap® surge protection devices are trusted by electrical engineers, panel builders and industrial maintenance teams to safeguard critical electrical infrastructure from 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...