Mersen 83230132 STPT23-20K320V-4P Type 2+3 surge protection device with 20 kA discharge capacity, 320 V AC continuous operating voltage and 4+0 TNS four-pole configuration.
£116.25
The Mersen 83230132 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 Series, this device provides dependable surge protection for three-phase plus neutral electrical systems in commercial, industrial and automation environments.
Engineered for DIN rail installation, this pluggable SPD helps protect sensitive electrical equipment from voltage spikes caused by lightning activity, switching operations and network disturbances. Its compact modular format allows quick replacement, making it suitable for distribution boards, switchboards and industrial control panels.
With a maximum discharge current of 20 kA (8/20 μs), a 320 V AC continuous operating voltage (Uc) and a 4+0 TNS configuration, the Mersen 83230132 is ideal for protecting PLCs, drives, instrumentation, machinery controls and electrical infrastructure operating on 230/400 V AC or 277/480 V AC systems.
Surge protection devices safely divert transient overvoltages away from connected electrical 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 industrial electronics.
The Mersen Surge-Trap® STPT23 Series is designed as a compact final stage of surge protection within low voltage installations, making it suitable for use close to protected equipment in switchboards, distribution boards, control panels and machinery systems.
| Voltage | 480 V |
|---|---|
| Phase | Three Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT23 Series |
| Model | STPT23-20K320V-4P |
| SKU | 83230132 |
| 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) | 320 V AC |
| Nominal operating voltage (Un) | 230/400 V AC, 277/480 V AC |
| System configuration | 4+0 TNS |
| Protection modes | L-PE / N-PE |
| 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 |
| Response time | 25 ns |
| RoHS compliant | Yes |
| EAN/UPC | 8435297851141 |
| 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 83230132 is a Type 2+3 / Class II+III surge protection device.
It is designed for 230/400 V AC and 277/480 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 features a pluggable modular design, allowing fast replacement of the surge protection cartridge during maintenance.
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...