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K2-320 Mersen Type 2 1P 277V Replacement Cartridge
Mersen 44020003 K2-320 Type 2 replacement cartridge for compatible Surge-Trap K2 Series surge protection devices with 320 V AC maximum continuous operating voltage, 20 kA nominal discharge current and 50 kA maximum discharge current.
£24.00
Why Choose the Mersen 44020003 K2-320 Replacement Cartridge?
The Mersen 44020003, also known as the K2-320, is a genuine Type 2 surge protection replacement cartridge for compatible Mersen Surge-Trap® K2 Series surge protection devices. Designed to restore surge protection quickly and efficiently, this pluggable module enables maintenance without replacing the complete surge protection assembly.
The K2-320 is intended for 320 V AC systems and provides reliable protection against transient overvoltages caused by indirect lightning strikes and electrical switching events. Its modular design helps minimise downtime while extending the service life of installed surge protection systems.
Featuring a visual status indicator and pluggable construction, the Mersen 44020003 allows fast inspection and replacement when the protection module reaches the end of its operational life.
Key Advantages
- Genuine replacement cartridge for compatible Mersen Surge-Trap® K2 Series SPDs.
- Type 2 / Class II surge protection.
- 320 V AC maximum continuous operating voltage (Uc).
- 20 kA nominal discharge current (In).
- 50 kA maximum discharge current (Imax).
- Single-pole pluggable cartridge for rapid replacement.
- Visual status indicator for easy maintenance.
- Reduces maintenance costs by retaining the existing SPD base.
Key Features
- Mersen Surge-Trap® K2 Series.
- K2-320 replacement cartridge.
- Type 2 / IEC Class II surge protection.
- Single-pole replacement module.
- 320 V AC maximum continuous operating voltage.
- 20 kA nominal discharge current.
- 50 kA maximum discharge current.
- Pluggable replaceable design.
- Visual operational status indicator.
- Compatible with Mersen K2 DIN rail SPD bases.
Quick Restoration of Surge Protection
The Mersen K2-320 replacement cartridge enables maintenance personnel to restore surge protection without replacing the complete surge protection device. The pluggable design reduces maintenance time and helps keep critical electrical installations protected against transient overvoltages.
Replacing only the protection cartridge is a cost-effective maintenance solution for industrial facilities, commercial buildings and critical infrastructure where electrical system availability is essential.
Typical Applications
- Replacement cartridge for compatible Mersen K2 Series SPDs.
- Industrial electrical distribution boards.
- Commercial switchboards.
- Automation and control panels.
- Building services installations.
- Manufacturing facilities.
- Low-voltage power distribution systems.
- Maintenance of installed surge protection equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Voltage | 277 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 | K2-320 | |
| Manufacturer part number | 44020003 | |
| Product type | Replacement surge protection cartridge | |
| SPD classification | Type 2 / IEC Class II | |
| Number of poles | 1 | |
| Maximum continuous operating voltage (Uc) | 320 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 | |
| Protection rating | IP20 | |
| Operating temperature | -40 to +85 °C | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen 44020003 used for?
The Mersen 44020003 is a K2-320 replacement cartridge designed for compatible Mersen Surge-Trap® K2 Series surge protection devices.
Is the Mersen 44020003 a complete surge protection device?
No. It is a pluggable replacement cartridge designed for installation into a compatible Mersen K2 surge protection base.
What maximum operating voltage does the K2-320 support?
The K2-320 has a maximum continuous operating voltage (Uc) of 320 V AC.
What discharge current rating does it provide?
The cartridge provides a nominal discharge current of 20 kA and a maximum discharge current of 50 kA.
Can the cartridge be replaced independently?
Yes. The pluggable design allows the replacement module to be exchanged while leaving the compatible DIN rail base installed.
Trusted Surge Protection from Mersen
Mersen Surge-Trap® K2 replacement cartridges provide a practical and reliable way to maintain surge protection systems while minimising downtime and replacement costs.
