Mersen 83230000 SP23-20K-N Type 2+3 neutral surge protection replacement cartridge with 20 kA maximum discharge current, 255 V AC maximum continuous operating voltage and N-PE protection mode for compatible Surge-Trap devices.
£28.70
The Mersen 83230000, also known as SP23-20K-N, is a compact Type 2+3 surge protection replacement cartridge designed for compatible Mersen Surge-Trap pluggable surge protection devices. It helps protect sensitive electrical equipment from transient overvoltages caused by switching operations, indirect lightning effects and network disturbances.
As part of the Mersen Surge-Trap STP T23 series, this neutral cartridge is intended for fine surge protection where Type 2 protection is already installed upstream. Its plug-in format enables fast replacement during maintenance, helping restore protection quickly without replacing the complete surge protection assembly.
With a 20 kA maximum discharge current, 255 V AC maximum continuous operating voltage and N-PE neutral protection configuration, the Mersen 83230000 is a practical choice for final-stage surge protection in distribution boards, control panels and sensitive equipment circuits.
Type 2+3 surge protection devices are commonly used as a final stage of protection close to sensitive equipment. They help reduce residual transient overvoltages after upstream surge protection has discharged larger surge currents, supporting improved protection for control systems, electronics and building services equipment.
The Mersen 83230000 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 responsible for maintaining reliable low-voltage electrical systems.
| Phase | Single Phase |
|---|---|
| Manufacturer | Mersen |
| Series | Surge-Trap STP T23 |
| Model | SP23-20K-N |
| Manufacturer part number | 83230000 |
| Product type | Surge protection replacement cartridge |
| SPD classification | Type 2+3 / Class II+III |
| Configuration | Neutral cartridge |
| Protection mode | N-PE |
| Number of poles | 1 pole |
| Maximum continuous operating voltage (Uc) | 255 V AC |
| Maximum discharge current (Imax) | 20 kA |
| Protection rating | IP20 |
| Mounting | Pluggable replacement cartridge |
| Compatible installation | DIN rail SPD assembly |
The Mersen 83230000 is a Type 2+3 neutral replacement cartridge for compatible Mersen Surge-Trap surge protection devices used in low-voltage electrical systems.
The alternative product code for Mersen 83230000 is SP23-20K-N.
This replacement cartridge has a 255 V AC maximum continuous operating voltage.
The Mersen 83230000 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, switchboards 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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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...