Mersen 83230104 STPT23-20K440V-1P Type 2+3 pluggable surge protection device with 20 kA Imax, 10 kA In and 440 V AC Uc for 400 V AC L-N electrical systems.
£31.20
The Mersen 83230104 is a compact and dependable Type 2+3 surge protection device (SPD) designed to protect low-voltage electrical installations from transient overvoltages. Part of the Mersen Surge-Trap® Pluggable STPT23 Series, it provides fine surge protection for industrial, commercial and OEM power distribution systems.
This pluggable SPD is designed for line-to-neutral (L-N) protection in AC installations. Its modular construction allows fast replacement of the surge protection cartridge, helping simplify maintenance while reducing downtime in control panels and electrical distribution boards.
With a 20 kA maximum discharge current, 10 kA nominal discharge current and 440 V AC maximum continuous operating voltage, the Mersen 83230104 is suitable for protecting equipment connected to 400 V AC systems, including automation equipment, drives, PLCs, power supplies and instrumentation.
Surge protection devices help prevent damaging transient voltages from reaching sensitive equipment. By diverting surge energy away from connected loads, SPDs reduce the risk of failure, data loss, nuisance faults and unplanned downtime.
The Mersen 83230104 is designed for panel-mounted electrical protection where reliable surge suppression is required close to the equipment being protected. Its pluggable design makes it suitable for maintenance-friendly installations in industrial and commercial environments.
| Voltage | 400 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT23 Series |
| Model | STPT23-20K440V-1P |
| SKU | 83230104 |
| Product type | Surge Protection Device |
| SPD classification | Type 2+3 / Class II + III |
| Nominal operating voltage | 400 V AC |
| Maximum continuous operating voltage | 440 V AC |
| Connection mode | L-N |
| Number of poles | 1 pole |
| Format | Pluggable, 1 module |
| Maximum discharge current (Imax) | 20 kA (8/20 μs) |
| Nominal discharge current (In) | 10 kA (8/20 μs) |
| Combined discharge voltage | 10 kV |
| Mounting type | DIN rail |
| Barcode | 8435297850557 |
The Mersen 83230104 is used to protect low-voltage electrical installations and sensitive equipment from transient overvoltages.
It is a Type 2+3 / Class II + III surge protection device from the Mersen Surge-Trap® Pluggable STPT23 Series.
It is designed for 400 V AC systems with a 440 V AC maximum continuous operating voltage.
Yes. The pluggable cartridge design allows fast replacement, helping simplify maintenance in electrical panels and distribution boards.
It is designed for DIN rail installation inside electrical panels, switchboards, control cabinets and OEM machinery enclosures.
Mersen Surge-Trap® surge protection devices are widely used by electrical engineers, panel builders and maintenance professionals to protect power distribution and automation equipment 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...
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...