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.
