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K2-2PG275 Mersen Surge Protector Type 2 SPD 2 Pole 230 Volt 20KA TT
Mersen 44020200 K2-2PG275 Type 2 surge protection device with combined L-N and N-PE protection, 275 V AC operating voltage, 20 kA nominal discharge current and 50 kA maximum discharge current.
£59.15
Why Choose the Mersen 44020200 K2-2PG275 Surge Protection Device?
The Mersen 44020200, also identified as the K2-2PG275, 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 combines line-to-neutral (L-N) and neutral-to-earth (N-PE) protection within a single pluggable unit, making it ideal for TT and TN-S electrical systems.
The K2-2PG275 features a pluggable cartridge design that simplifies maintenance and replacement without removing the complete base from the DIN rail. Its integrated visual status indicator enables quick inspection of the protection module, helping maintenance personnel minimise downtime and maintain continuous surge protection.
With a 275 V AC maximum continuous operating voltage (L-N), 255 V AC maximum continuous operating voltage (N-PE), a 20 kA nominal discharge current and a 50 kA maximum discharge current, the Mersen 44020200 provides dependable protection against switching transients and lightning-induced surges. Its compact two-module DIN-rail format makes it suitable for distribution boards, switchgear and industrial control panels.
Key Advantages
- Reliable Type 2 surge protection for single-phase electrical installations.
- Combined L-N and N-PE protection in one compact device.
- 50 kA maximum discharge current for effective transient protection.
- Pluggable cartridge design simplifies servicing and replacement.
- Compact two-module DIN-rail mounting.
- Suitable for TT and TN-S low-voltage electrical systems.
Key Features
- Mersen Surge-Trap K2 series.
- Type 2 / Class II surge protection device.
- 1+1 internal configuration.
- Two-pole design.
- 275 V AC L-N operating voltage.
- 255 V AC N-PE operating voltage.
- 20 kA nominal discharge current.
- 50 kA maximum discharge current.
- Voltage protection level of ≤1.5 kV.
- Visual operating status indication.
- Dynamic thermal disconnection.
- Pluggable DIN-rail construction.
Reliable Surge Protection for Single-Phase Installations
Transient overvoltages caused by lightning activity and electrical switching operations can damage sensitive equipment including PLCs, power supplies, communication devices and control electronics. Effective surge protection helps minimise equipment failure and costly downtime.
The Mersen Surge-Trap K2 series provides high-performance protection using advanced thermal disconnection technology and replaceable cartridges, making routine maintenance simple while ensuring reliable long-term protection of valuable electrical installations.
Typical Applications
- Single-phase distribution boards.
- Commercial electrical installations.
- Industrial control panels.
- Building management systems.
- Automation and PLC control cabinets.
- Electrical switchgear for TT and TN-S systems.
Technical Specifications
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| Voltage | 230 V | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | Surge protection device | |
| SPD Type | Type 2 | |
| Earthing System | TN-S, TT | |
| Nominal Discharge Current (In) | 20 kA | |
| Remote Signal | No | |
| Manufacturer | Mersen | |
| Series | Surge-Trap K2 | |
| Model | K2-2PG275 | |
| SKU / Part number | 44020200 | |
| Product type | Surge protection device | |
| SPD classification | Type 2 / Class II | |
| Internal configuration | 1+1 | |
| Number of poles | 2 | |
| Network compatibility | TT and TN-S | |
| Protection modes | L-N / N-PE | |
| Nominal voltage | 230 V AC | |
| Maximum continuous operating voltage (L-N) | 275 V AC | |
| Maximum continuous operating voltage (N-PE) | 255 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 | 25 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| DIN modules | 2 | |
| Weight | approx. 0.242 kg | |
| EAN | 8435297889762 | |
| HS Code | 85363090 | |
| Country of Manufacture | Spain |
Frequently Asked Questions
What is the Mersen 44020200 used for?
The Mersen 44020200 protects single-phase low-voltage electrical installations from transient overvoltages caused by lightning and switching events.
What type of surge protection device is the K2-2PG275?
It is a Type 2 / Class II surge protection device designed for TT and TN-S electrical systems.
What protection modes are provided?
The device provides combined line-to-neutral (L-N) and neutral-to-earth (N-PE) surge protection within a single unit.
What discharge current can it withstand?
The K2-2PG275 is rated for a 20 kA nominal discharge current and a 50 kA maximum discharge current.
Can the protection cartridges be replaced?
Yes. The pluggable design allows the surge protection cartridges to be replaced quickly without removing the complete DIN-rail base.
Trusted Surge Protection from Mersen
Mersen Surge-Trap K2 surge protection devices are trusted by electrical engineers and panel builders worldwide to protect critical electrical systems from damaging transient overvoltages.
