Why Choose the Mersen 83120009 Surge-Trap Neutral Replacement Cartridge?
The Mersen 83120009, also known as SP12-50K-2PN, is a dependable Type 1+2 surge protection replacement cartridge designed for compatible Mersen Surge-Trap pluggable surge protection devices. It is used to help protect electrical distribution systems from lightning currents and transient overvoltages in industrial, commercial and building services applications.
As part of the Mersen Surge-Trap STPT12 series, this neutral cartridge is designed for installations requiring coordinated surge protection at the incoming power supply. Its plug-in cartridge format allows quick replacement during maintenance, helping restore protection without replacing the complete surge protection assembly.
With a 25 kA nominal discharge current, 255 V maximum continuous operating voltage and 1 pole neutral configuration, the Mersen 83120009 is a practical choice for maintaining Type 1+2 surge protection systems where neutral line protection is required.
Key Advantages
- Type 1+2 / Class I+II neutral replacement cartridge for compatible Mersen Surge-Trap devices.
- 255 V AC maximum continuous operating voltage for neutral protection applications.
- 25 kA nominal discharge current for reliable surge protection performance.
- 1 pole neutral configuration for suitable SPD assemblies.
- Plug-in design supports fast replacement and reduced maintenance time.
- Suitable for incoming panels, switchboards and electrical distribution systems.
Key Features
- Mersen Surge-Trap STPT12 series.
- Type 1+2 / Class I+II surge protection.
- Neutral replacement cartridge.
- 1 pole configuration.
- 255 V AC maximum continuous operating voltage.
- 25 kA nominal discharge current.
- Pluggable cartridge design for compatible SPD bases.
- Designed for DIN rail surge protection assemblies.
Reliable Surge Protection for Electrical Distribution Systems
Type 1+2 surge protection devices are commonly installed near the origin of electrical installations to discharge high-energy surge currents and limit transient overvoltages before they reach downstream equipment. Neutral cartridges form part of coordinated SPD systems and help support protection between neutral and earth where required.
The Mersen 83120009 replacement cartridge enables maintenance teams to restore surge protection quickly and efficiently. Its pluggable format makes it suitable for panel builders, electrical contractors and facilities engineers responsible for maintaining critical power distribution infrastructure.
Typical Applications
- Main incoming electrical distribution boards.
- Industrial switchboards and control panels.
- Neutral surge protection applications.
- Commercial building electrical installations.
- Facilities with coordinated lightning and surge protection systems.
- Maintenance replacement for compatible Mersen Surge-Trap devices.
