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K2-1PG Mersen Surge Protector Type 2 SPD 1 Pole Neutral 20KA N-PE
Mersen 44020100 K2-1PG Type 2 surge protection device for neutral-to-earth protection with 255 V AC maximum continuous operating voltage, 50 kA discharge current capability and pluggable DIN-rail design.
£34.85
Why Choose the Mersen 44020100 K2-1PG Surge Protection Device?
The Mersen 44020100, also identified as the K2-1PG, is a robust Type 2 surge protection device (SPD) designed specifically to protect the neutral-to-earth (N-PE) conductor in low-voltage electrical installations against transient overvoltages. As part of the proven Mersen Surge-Trap K2 series, it provides reliable secondary surge protection for commercial, industrial and infrastructure applications.
Featuring a compact pluggable design, the K2-1PG allows rapid inspection and replacement of the protection module without removing the complete base from the DIN rail. A built-in visual status indicator clearly shows the operating condition, helping maintenance engineers quickly identify when replacement is required.
With a 255 V AC maximum continuous operating voltage, a 50 kA nominal and maximum discharge current and a voltage protection level of ≤1.5 kV, the Mersen 44020100 offers dependable protection against switching surges and lightning-induced transient voltages. Its compact single-module format makes it ideal for installation in modern electrical distribution boards and switchgear assemblies.
Key Advantages
- Reliable Type 2 surge protection for neutral-to-earth circuits.
- 50 kA discharge current capability for effective transient protection.
- 255 V AC maximum continuous operating voltage.
- Pluggable cartridge enables simple maintenance and replacement.
- Visual operating status indicator for quick inspection.
- Compact DIN-rail mounting design for distribution boards and control panels.
Key Features
- Mersen Surge-Trap K2 series.
- Type 2 / Class II surge protection device.
- 0+1 internal configuration.
- N-PE protection mode.
- 255 V AC maximum continuous operating voltage.
- 50 kA nominal discharge current.
- 50 kA maximum discharge current.
- Voltage protection level of ≤1.5 kV.
- Visual status indication.
- Pluggable DIN-rail mounted construction.
Reliable Neutral-to-Earth Surge Protection
Neutral-to-earth surge protection devices protect electrical installations against transient voltages that can occur between the neutral and protective earth conductors during lightning activity or switching events. These surges can damage sensitive electronic equipment, control systems and electrical infrastructure.
The Mersen Surge-Trap K2 range is engineered for dependable long-term protection, combining high discharge capability, thermal disconnection technology and a replaceable cartridge design to minimise maintenance while maintaining continuous protection for critical electrical systems.
Typical Applications
- Commercial electrical distribution boards.
- Industrial switchgear and control panels.
- Building management systems.
- Manufacturing and automation equipment.
- Low-voltage electrical infrastructure.
- Neutral-to-earth surge protection in TT and TN-S systems.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole | |
| Device Type | Surge protection device | |
| SPD Type | Type 2 | |
| Earthing System | TN-S, TT | |
| Nominal Discharge Current (In) | 50 kA | |
| Remote Signal | No | |
| Manufacturer | Mersen | |
| Series | Surge-Trap K2 | |
| Model | K2-1PG | |
| SKU / Part number | 44020100 | |
| Product type | Surge protection device | |
| SPD classification | Type 2 / Class II | |
| Internal configuration | 0+1 | |
| Number of poles | 1 | |
| Protection mode | N-PE | |
| Maximum continuous operating voltage (Uc) | 255 V AC | |
| Nominal operating voltage | Neutral | |
| Nominal Discharge Current (In) | 50 kA | |
| Maximum discharge current (Imax) | 50 kA | |
| Voltage protection level (Up) | ≤1.5 kV | |
| Response time | ≤100 ns | |
| Following current | 100 A | |
| Short-circuit withstand | 25 kA | |
| Network compatibility | TT and TN-S systems | |
| Status indication | Green (OK) / Not green (replace) | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| DIN modules | 1 | |
| Operating temperature | -40 to +85 °C | |
| EAN | 8435297889700 |
Frequently Asked Questions
What is the Mersen 44020100 used for?
The Mersen 44020100 protects the neutral-to-earth conductor in low-voltage electrical installations against transient overvoltages caused by lightning and switching events.
What type of surge protection device is it?
It is a Type 2 / Class II surge protection device designed for N-PE protection in TT and TN-S electrical systems.
What discharge current is supported?
The device is rated for a 50 kA nominal discharge current and a 50 kA maximum discharge current.
Can the protection module be replaced?
Yes. The K2-1PG features a pluggable protection module that can be replaced without removing the DIN-rail base.
Where is the device typically installed?
It is commonly installed in electrical distribution boards and switchgear to provide secondary surge protection within commercial and industrial low-voltage installations.
Trusted Surge Protection from Mersen
Mersen Surge-Trap K2 surge protection devices are trusted by electrical engineers, panel builders and industrial maintenance teams to protect critical electrical installations against damaging transient overvoltages.
