Mersen 44020202 K2-2P275 Type 2 surge protection device with 2+0 configuration, 275 V AC maximum continuous operating voltage, 20 kA nominal discharge current and 50 kA maximum discharge current.
£69.24
The Mersen 44020202, also identified as the K2-2P275, is a compact and reliable Type 2 surge protection device (SPD) designed to protect single-phase low-voltage electrical installations against transient overvoltages. As part of the proven Mersen Surge-Trap K2 series, it provides effective line-to-neutral surge protection for TN-S electrical systems, helping safeguard sensitive equipment from lightning-induced surges and switching transients.
The K2-2P275 features a pluggable cartridge design that enables quick inspection and replacement without removing the complete DIN-rail base. Its integrated visual status indicator makes it easy to identify the operating condition, reducing maintenance time while ensuring continuous surge protection for critical electrical installations.
With a 230 V AC nominal operating voltage, a 275 V AC maximum continuous operating voltage, a 20 kA nominal discharge current and a 50 kA maximum discharge current, the Mersen 44020202 delivers dependable protection for commercial, industrial and infrastructure applications. Its compact two-module DIN-rail design allows straightforward installation in distribution boards, switchgear and control panels.
Transient overvoltages generated by indirect lightning strikes, switching operations and inductive loads can damage drives, PLCs, power supplies, communication equipment and other sensitive electronics. Installing a dedicated Type 2 surge protection device helps reduce costly equipment failures while improving overall electrical system reliability.
The Mersen Surge-Trap K2 series combines high discharge capability, rapid response and replaceable protection cartridges, making routine maintenance straightforward while providing dependable long-term protection for valuable electrical infrastructure.
| Voltage | 230 V |
|---|---|
| Manufacturer | Mersen |
| Series | Surge-Trap K2 |
| Model | K2-2P275 |
| SKU / Part number | 44020202 |
| Product type | Surge protection device |
| IEC SPD classification | Type 2 / Class II |
| UL SPD classification | Type 1 Component Assembly |
| Internal configuration | 2+0 |
| Number of poles | 2 |
| System compatibility | TN-S |
| Protection mode | L-N |
| Nominal operating voltage | 230 V AC |
| Maximum continuous operating voltage | 275 V AC |
| Nominal discharge current | 20 kA |
| Maximum discharge current | 50 kA |
| Voltage protection level | ≤1.5 kV |
| Maximum back-up fuse | 315 A gG |
| Short-circuit withstand rating | 25 kA |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| DIN rail modules | 2 |
| Dimensions (H × W × D) | approx. 90 × 36 × 68.2 mm |
| Weight | approx. 0.232 kg |
| EAN | 8435297889779 |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
The Mersen 44020202 protects single-phase TN-S electrical installations against transient overvoltages caused by lightning activity and electrical switching events.
It is a Type 2 / Class II surge protection device designed for secondary surge protection in TN-S low-voltage electrical systems.
The K2-2P275 is rated for a 20 kA nominal discharge current and a 50 kA maximum discharge current using the standard 8/20 µs surge waveform.
Yes. The pluggable cartridge design allows the protection modules to be replaced without removing the complete DIN-rail base.
The device is typically installed in distribution boards, switchgear assemblies and industrial control panels to provide secondary surge protection for sensitive electrical equipment.
Mersen Surge-Trap K2 surge protection devices are trusted by electrical engineers, panel builders and maintenance professionals to protect critical electrical systems against damaging transient overvoltages.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...