Mersen K2-1P275 Type 2 surge protection device with 275 V AC operating voltage, 50 kA maximum discharge current and pluggable DIN rail mounting for 230 V single-phase electrical systems.
£35.69
The Mersen 44020102 K2-1P275 is a high-performance Type 2 Surge Protection Device (SPD) designed to protect single-phase low-voltage electrical installations against transient overvoltages caused by switching events and indirect lightning strikes. Part of the proven Mersen Surge-Trap® K - K2 Series, this pluggable SPD provides reliable second-stage surge protection for residential, commercial and industrial electrical systems.
Designed for installation within distribution boards, the K2-1P275 features a compact DIN rail mounted housing with replaceable pluggable protection cartridges. This modular design enables fast maintenance while helping minimise system downtime and ensuring continuous protection of connected electrical equipment.
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 delivers dependable protection for 230 V single-phase L-N electrical systems.
The Mersen K2-1P275 safely diverts damaging transient surge currents away from connected electrical equipment before they can damage control systems, consumer units, automation equipment, electronic devices and other sensitive components. Installing a dedicated Type 2 SPD helps extend equipment life while reducing maintenance costs and unplanned downtime.
Its compact footprint, high discharge capacity and pluggable construction make it an ideal choice for residential, commercial and industrial distribution boards requiring dependable secondary surge protection.
| Voltage | 230 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® K - K2 Series |
| Model | K2-1P275 |
| Part Number | 44020102 |
| EAN | 8435297889724 |
| 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 | 1P (L-N) |
| Mounting type | DIN rail |
| Format | Pluggable |
| Maximum back-up fuse | 315 A gG |
| Protection rating | IP20 |
| Operating temperature | -40°C to +80°C |
| Housing material | PA6 CT1 & PA66 CT1 |
| Tightening torque | 3 Nm |
| 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.
The K2-1P275 is designed for 230 V AC single-phase L-N electrical systems.
The device offers a 50 kA maximum discharge current (Imax) and a 20 kA nominal discharge current (In).
No. The K2-1P275 includes a visual status indicator only. For remote signalling, choose the K2-1P275-M version.
The surge protection device mounts directly onto a standard DIN rail and features a pluggable cartridge for fast replacement during maintenance.
Mersen Surge-Trap® K Series surge protection devices are trusted by electricians, panel builders and electrical engineers worldwide to protect low-voltage electrical installations 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...