Why Choose the Mersen 44020001 K2-275 Replacement Cartridge?
The Mersen 44020001, also known as the K2-275, is a genuine Type 2 surge protection replacement cartridge for compatible Mersen Surge-Trap® K2 Series surge protection devices. Designed for the rapid restoration of surge protection without replacing the complete SPD assembly, this pluggable single-pole module offers a cost-effective maintenance solution for commercial and industrial electrical installations.
The K2-275 is designed for 230 V AC systems with a 275 V AC maximum continuous operating voltage (Uc). It provides a 20 kA nominal discharge current and a 50 kA maximum discharge current, delivering dependable protection against transient overvoltages caused by indirect lightning strikes and electrical switching events.
Its reinforced pluggable construction allows replacement within seconds while leaving the original DIN rail base and wiring intact. An integrated visual status indicator makes routine inspections simple, helping maintenance engineers identify when replacement is required.
Key Advantages
- Genuine replacement cartridge for compatible Mersen Surge-Trap® K2 Series SPDs.
- Type 2 / Class II surge protection.
- 50 kA maximum discharge current for effective transient protection.
- 20 kA nominal discharge current for reliable long-term performance.
- 275 V AC maximum continuous operating voltage.
- Single-pole pluggable cartridge enables rapid replacement.
- Visual operational status indicator simplifies maintenance.
- Reduces downtime by eliminating the need to replace the complete SPD.
Key Features
- Mersen Surge-Trap® K2 Series.
- K2-275 replacement cartridge.
- Type 2 / IEC Class II surge protection.
- Single-pole replacement module.
- 230 V AC nominal system voltage.
- 275 V AC maximum continuous operating voltage (Uc).
- 20 kA nominal discharge current (In).
- 50 kA maximum discharge current (Imax).
- Visual end-of-life indication.
- Reinforced pluggable construction.
Fast Maintenance for Surge Protection Systems
Surge protection devices absorb transient energy throughout their service life and eventually require replacement after repeated surge events. The Mersen K2-275 replacement cartridge enables maintenance engineers to restore protection quickly without disconnecting wiring or replacing the complete surge protection assembly.
Its modular design reduces maintenance costs and minimises system downtime, making it ideal for industrial plants, commercial buildings and critical infrastructure where continuous electrical protection is essential.
Typical Applications
- Replacement cartridge for compatible Mersen K2 Series SPDs.
- Industrial distribution boards.
- Commercial switchboards.
- Automation and PLC control panels.
- Building services installations.
- Manufacturing facilities.
- Low-voltage power distribution systems.
- Maintenance of surge protection installations.
