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K2-275 Mersen Type 2 1P 230V Replacement Cartridge
Mersen 44020001 K2-275 Type 2 replacement cartridge for compatible Surge-Trap K2 Series surge protection devices, featuring 275 V AC maximum continuous operating voltage, 20 kA nominal discharge current and 50 kA maximum discharge current.
£22.22
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.
Technical Specifications
Tick the specs you need, then view products that match.
| Voltage | 230 V | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | Replacement cartridge | |
| SPD Type | Type 2 | |
| Nominal Discharge Current (In) | 20 kA | |
| Manufacturer | Mersen | |
| Series | Surge-Trap® K2 Series | |
| Model | K2-275 | |
| Manufacturer part number | 44020001 | |
| Product type | Replacement surge protection cartridge | |
| SPD classification | Type 2 / IEC Class II | |
| Number of poles | 1 | |
| Nominal system voltage | 230 V AC | |
| Maximum continuous operating voltage (Uc) | 275 V AC | |
| Nominal discharge current (In) | 20 kA | |
| Maximum discharge current (Imax) | 50 kA | |
| Surge waveform | 8/20 µs | |
| Format | Pluggable replacement cartridge | |
| Mounting | Compatible K2 DIN rail surge protection base | |
| Status indication | Visual operational indicator | |
| Maximum back-up fuse | 315 A | |
| Operating temperature | -40 to +85 °C | |
| Protection rating | IP20 | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen 44020001 used for?
The Mersen 44020001 is a genuine K2-275 replacement cartridge designed to restore surge protection in compatible Mersen Surge-Trap® K2 Series devices.
Is the K2-275 a complete surge protection device?
No. It is a replacement cartridge that fits compatible Mersen K2 surge protection bases and is not a complete standalone SPD.
What surge current can the K2-275 withstand?
The cartridge provides a nominal discharge current of 20 kA and a maximum discharge current of 50 kA.
Can the cartridge be replaced without removing the DIN rail base?
Yes. The pluggable design allows the replacement module to be exchanged while leaving the original surge protection base and wiring in place.
Which systems is the K2-275 designed for?
The K2-275 is designed for compatible 230 V AC Mersen Surge-Trap® K2 Series surge protection devices using a 275 V AC replacement cartridge.
Trusted Surge Protection from Mersen
Mersen Surge-Trap® K2 replacement cartridges help maintain reliable surge protection while reducing maintenance time and extending the service life of installed surge protection systems.
