Mersen 83230003 SP23-20K275V-LF Type 2+3 surge protection replacement cartridge with 20 kA maximum discharge current and 275 V AC maximum continuous operating voltage for compatible Surge-Trap devices.
£27.93
The Mersen 83230003, also known as SP23-20K275V-LF, is a compact Type 2+3 surge protection replacement cartridge designed for compatible Mersen Surge-Trap pluggable surge protection devices. It helps protect low-voltage electrical systems from transient overvoltages caused by switching operations, indirect lightning effects and network disturbances.
As part of the Mersen Surge-Trap STPT23 LF series, this replacement cartridge is suitable for final-stage surge protection close to sensitive equipment and is compatible with PLC network applications. Its plug-in format enables fast replacement during maintenance, helping restore protection without replacing the complete surge protection assembly.
With a 20 kA maximum discharge current, 275 V AC maximum continuous operating voltage and 1 pole configuration, the Mersen 83230003 is a practical choice for Type 2+3 surge protection applications on 230 V electrical systems.
Type 2+3 surge protection devices are commonly used as a final stage of protection close to sensitive electrical equipment. They help reduce residual transient overvoltages after upstream surge protection has handled larger surge currents, supporting improved protection for electronics, controls and building services systems.
The Mersen 83230003 replacement cartridge enables maintenance teams to restore surge protection quickly without replacing the complete SPD base. This makes it suitable for panel builders, electrical contractors and facilities engineers maintaining reliable low-voltage electrical systems.
| Voltage | 275 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap STPT23 LF |
| Model | SP23-20K275V-LF |
| Manufacturer part number | 83230003 |
| Product type | Surge protection replacement cartridge |
| SPD classification | Type 2+3 / Class II+III |
| Number of poles | 1 pole |
| Nominal voltage | 230 V AC |
| Maximum continuous operating voltage (Uc) | 275 V AC |
| Maximum discharge current (Imax) | 20 kA |
| Standards | EN 61643-11 / IEC 61643-11 |
| Protection rating | IP20 |
| Mounting | Plug-in replacement cartridge |
| Approximate dimensions | 90 × 18 × 70 mm |
The Mersen 83230003 is a Type 2+3 replacement cartridge for compatible Mersen Surge-Trap surge protection devices used in low-voltage electrical and control systems.
The alternative product code for Mersen 83230003 is SP23-20K275V-LF.
This replacement cartridge is designed for 230 V AC nominal systems and has a 275 V AC maximum continuous operating voltage.
The Mersen 83230003 is designed for Type 2+3 / Class II+III surge protection assemblies.
It is typically installed in compatible Mersen Surge-Trap pluggable SPD assemblies within distribution boards, control panels and final-stage protection circuits close to sensitive equipment.
Mersen Surge-Trap surge protection products are widely used by electrical engineers, panel builders and contractors to protect commercial and industrial electrical installations 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...