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K2-2PG320-M Mersen Surge Protector Type 2 SPD 2 Pole 277 Volt 20KA TT Remote Indication
Mersen 44020209 K2-2PG320-M Type 2 surge protection device with 1+1 configuration, integrated remote signalling, 320 V AC maximum continuous operating voltage and 50 kA maximum discharge current.
£69.15
Why Choose the Mersen 44020209 K2-2PG320-M Surge Protection Device?
The Mersen 44020209, also identified as the K2-2PG320-M, is a high-performance Type 2 surge protection device (SPD) designed to protect single-phase low-voltage electrical installations against transient overvoltages. Part of the trusted Mersen Surge-Trap K2 series, it combines line-to-neutral and neutral-to-earth protection with integrated remote indication, making it ideal for commercial, industrial and infrastructure applications.
The K2-2PG320-M features a pluggable protection module that allows rapid inspection and replacement without removing the DIN-rail base. A visual status indicator clearly displays the operational condition, while the integrated microswitch provides remote signalling to building management systems, PLCs and industrial monitoring equipment.
With a 277 V AC nominal operating voltage, 320 V AC maximum continuous operating voltage (L-N), 20 kA nominal discharge current and 50 kA maximum discharge current, the Mersen 44020209 delivers dependable protection against switching transients and lightning-induced surges. Its compact two-module DIN-rail design allows straightforward installation within distribution boards and electrical 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 surge protection.
- Integrated remote signalling microswitch for condition monitoring.
- Pluggable cartridges simplify servicing and replacement.
- 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.
- 277 V AC nominal operating voltage.
- 320 V AC maximum continuous operating voltage (L-N).
- 255 V AC maximum continuous operating voltage (N-PE).
- 20 kA nominal discharge current.
- 50 kA maximum discharge current.
- Integrated visual indication and remote signalling microswitch.
- Replaceable protection cartridges.
- Compact pluggable DIN-rail construction.
Reliable Surge Protection for Industrial Electrical Systems
Transient overvoltages generated by indirect lightning strikes, utility switching and inductive loads can damage PLCs, drives, power supplies, communication equipment and other sensitive electronic devices. Installing a suitable surge protection device helps reduce costly equipment failures while improving system reliability.
The Mersen Surge-Trap K2 range combines high surge capacity, rapid response and replaceable cartridges with integrated remote monitoring, allowing maintenance teams to monitor protection status remotely while minimising downtime during servicing.
Typical Applications
- Commercial distribution boards.
- Industrial switchgear and control panels.
- Building management systems.
- PLC and automation control cabinets.
- Power supplies and variable speed drives.
- TT and TN-S low-voltage electrical installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Voltage | 277 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 | Yes | |
| Manufacturer | Mersen | |
| Series | Surge-Trap K2 | |
| Model | K2-2PG320-M | |
| SKU / Part number | 44020209 | |
| Product type | Surge protection device | |
| IEC SPD classification | Type 2 / Class II | |
| UL SPD classification | Type 1 Component Assembly | |
| Internal configuration | 1+1 | |
| Number of poles | 2 | |
| Protection modes | L-N / N-PE | |
| System compatibility | TN-S, TT | |
| Nominal operating voltage | 277 V AC | |
| Maximum continuous operating voltage (L-N) | 320 V AC | |
| Maximum continuous operating voltage (N-PE) | 255 V AC | |
| Nominal discharge current | 20 kA | |
| Maximum discharge current | 50 kA | |
| Voltage protection level (L-N) | ≤1.5 kV | |
| Voltage protection level (L-PE) | ≤1.8 kV | |
| Voltage protection level (N-PE) | ≤1.5 kV | |
| Following current | 100 A | |
| Short-circuit withstand | 25 kA | |
| Maximum back-up fuse | 315 A gG | |
| Status indication | Green (OK) / Not green (replace) | |
| Remote signalling | Integrated microswitch | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 90 × 36 × 74.4 mm | |
| Weight | approx. 0.232 kg | |
| EAN | 8435297889687 | |
| HS Code | 85363090 | |
| Country of Manufacture | Spain |
Frequently Asked Questions
What is the Mersen 44020209 used for?
The Mersen 44020209 protects single-phase electrical installations and connected equipment against transient overvoltages caused by lightning activity and electrical switching events.
What type of surge protection device is the K2-2PG320-M?
It is a Type 2 / Class II surge protection device designed for TT and TN-S low-voltage electrical systems.
Does the device provide remote monitoring?
Yes. The K2-2PG320-M includes an integrated microswitch that provides remote signalling for building management and industrial monitoring systems.
What discharge current can it withstand?
The device is rated for a 20 kA nominal discharge current and a 50 kA maximum discharge current using the standard 8/20 µs waveform.
Can the protection cartridges be replaced?
Yes. The pluggable cartridge design allows both protection modules to be replaced without removing the complete DIN-rail base.
Trusted Surge Protection from Mersen
Mersen Surge-Trap K2 surge protection devices are trusted by electrical engineers, panel builders and maintenance professionals to safeguard critical electrical installations against damaging transient overvoltages.
