Mersen K2-1P275-M Type 2 surge protection device with integrated remote signalling, 275 V AC operating voltage, 50 kA maximum discharge current and pluggable DIN rail mounting for 230 V AC single-phase electrical systems.
£42.12
The Mersen 44020103 K2-1P275-M is a high-performance Type 2 Surge Protection Device (SPD) engineered to protect single-phase low-voltage electrical installations from transient overvoltages caused by switching operations and indirect lightning activity. As part of the proven Mersen Surge-Trap® K - K2 Series, this pluggable SPD combines dependable surge protection with an integrated remote signalling contact, making it ideal for industrial, commercial and critical electrical installations.
Designed for installation within distribution boards, the K2-1P275-M features a compact DIN rail mounted housing with replaceable pluggable protection cartridges. Its integrated microswitch enables remote monitoring of the device status, allowing maintenance personnel to receive fault notifications without opening the enclosure, helping to minimise downtime and simplify preventative maintenance.
With a 275 V AC maximum continuous operating voltage (Uc), a 50 kA maximum discharge current (Imax) and a 20 kA nominal discharge current (In), the K2-1P275-M delivers dependable protection for 230 V AC single-phase L-N electrical systems.
The Mersen K2-1P275-M safely diverts transient surge currents away from connected electrical equipment before they can damage consumer units, control panels, PLCs, automation systems and other sensitive electronic devices. This helps reduce costly downtime, minimise maintenance requirements and extend the operational life of connected equipment.
Its combination of high discharge capacity, integrated remote monitoring and modular pluggable construction makes it an ideal solution for residential, commercial and industrial installations where reliable secondary surge protection is essential.
| Voltage | 230 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® K - K2 Series |
| Model | K2-1P275-M |
| Part Number | 44020103 |
| EAN | 8435297889663 |
| Product type | Type 2 Surge Protection Device (SPD) |
| IEC SPD Type | Class II |
| UL SPD Type | Type 1 Component Assembly |
| Maximum continuous operating voltage (Uc) | 275 V AC |
| Nominal operating voltage (Un) | 230 V AC |
| Maximum discharge current (Imax) | 50 kA (8/20 μs) |
| Nominal discharge current (In) | 20 kA (8/20 μs) |
| Protection level (Up) | ≤1.5 kV |
| Configuration | 1+0 (1 Pole) |
| Network compatibility | TNS, TNC, TT (L-N only) |
| Short-circuit withstand (ISCCR) | 25 kA |
| Maximum back-up fuse | 315 A gG |
| Response time | ≤25 ns |
| Remote indication | Integrated microswitch |
| Mounting type | DIN rail |
| Format | Pluggable |
| Protection rating | IP20 |
| Operating temperature | -40°C to +80°C |
| Housing material | PA6 CT1 & PA66 CT1 |
| Dimensions (H × W × D) | Approx. 90 × 18 × 90 mm |
| RoHS compliant | Yes |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
It provides Type 2 surge protection for single-phase electrical installations against transient overvoltages caused by switching events and indirect lightning activity.
Yes. The K2-1P275-M includes an integrated microswitch that enables remote indication of the surge protection device status.
The K2-1P275-M is designed for 230 V AC TNS, TNC and TT (L-N only) electrical systems.
The device provides a 50 kA maximum discharge current (Imax) and a 20 kA nominal discharge current (In).
The surge protection device mounts directly onto a standard DIN rail and features a replaceable pluggable cartridge for fast servicing and maintenance.
Mersen Surge-Trap® K Series surge protection devices are trusted by electricians, panel builders and electrical engineers worldwide to protect low-voltage electrical systems from damaging transient overvoltages.
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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...