Why Choose the Mersen 83120004 Surge-Trap Replacement Cartridge?
The Mersen 83120004, also known as SP12-12K440V, is a high-performance Type 1+2 surge protection replacement cartridge designed for use with Mersen Surge-Trap pluggable surge protection devices. It provides dependable protection against lightning currents and transient overvoltages in electrical distribution systems.
As part of the Mersen STP T12 12.5 Surge-Trap series, this replaceable cartridge is engineered for installations requiring coordinated surge protection at the incoming power supply. Its plug-in design allows quick replacement during maintenance, helping reduce downtime while maintaining reliable protection for connected equipment.
With a 12.5 kA impulse current rating, 20 kA nominal discharge current and 440 V maximum continuous operating voltage, the Mersen 83120004 is suitable for demanding industrial, commercial and power distribution applications where Type 1+2 surge protection is required.
Key Advantages
- Type 1+2 surge protection replacement cartridge for Mersen Surge-Trap systems.
- 12.5 kA impulse current rating for lightning current discharge capability.
- 440 V maximum continuous operating voltage for suitable electrical networks.
- 20 kA nominal discharge current for robust surge protection performance.
- Plug-in cartridge format supports fast and straightforward maintenance.
- Designed for use in incoming power supply panels and electrical distribution boards.
Key Features
- Mersen Surge-Trap STP T12 12.5 series.
- Type 1+2 / Class I+II surge protection.
- Replacement cartridge format.
- 1 pole configuration.
- 12.5 kA lightning impulse current rating.
- 20 kA nominal discharge current.
- 440 V maximum continuous operating voltage.
- Designed for DIN rail surge protection assemblies.
Surge protection devices help protect electrical installations from transient overvoltages caused by lightning activity, switching operations and network disturbances. A Type 1+2 SPD is commonly used near the origin of an installation to discharge high-energy surge currents before they can damage sensitive downstream equipment.
The Mersen 83120004 replacement cartridge enables continued protection without replacing the complete surge protection assembly. This makes it a practical choice for maintenance teams, panel builders and electrical contractors responsible for keeping distribution systems protected and operational.
Typical Applications
- Incoming electrical distribution panels.
- Industrial power distribution systems.
- Commercial switchboards and control panels.
- Surge protection assemblies with external lightning protection systems.
- Building services and infrastructure installations.
- Maintenance replacement for compatible Mersen Surge-Trap devices.
