Why Choose the Mersen K1-1P275-M Type 1+2 Surge Protection Device?
The Mersen K1-1P275-M, product code 44120103, is a premium Type 1+2 Surge Protection Device (SPD) designed to protect low-voltage electrical installations from lightning-induced surges and transient overvoltages. As part of the Mersen Surge-Trap® K1 Series, it provides both Type 1 and Type 2 protection in a compact, pluggable module with the added benefit of an integrated remote signalling contact for continuous status monitoring.
Designed for single-phase AC systems, the K1-1P275-M features a 1+0 protection configuration, a maximum continuous operating voltage (Uc) of 275 V AC, and a replaceable cartridge for simplified maintenance. The integrated microswitch enables remote indication of the SPD status, making it particularly suitable for monitored industrial and commercial installations.
With a 12.5 kA lightning impulse current (Iimp), 50 kA maximum discharge current (Imax), 20 kA nominal discharge current (In) and a voltage protection level (Up) of ≤1.5 kV, the K1-1P275-M delivers dependable protection for sensitive electrical equipment while complying with IEC 61643-11.
Key Advantages
- Combined Type 1 + Type 2 surge protection.
- Remote signalling contact for monitoring system status.
- Designed for 230 V single-phase AC installations.
- Pluggable cartridge enables quick maintenance.
- 12.5 kA lightning impulse current (Iimp).
- 50 kA maximum discharge current (Imax).
Key Features
- Manufacturer: Mersen
- Series: Surge-Trap® K1
- Model: K1-1P275-M
- Product code: 44120103
- SPD Type: IEC Class I + II (Type 1+2)
- Configuration: 1+0 (L-N)
- Integrated remote signalling contact.
- Visual operating status indicator.
Reliable Surge Protection with Remote Monitoring
Type 1+2 surge protection devices safely divert damaging transient overvoltages away from sensitive electrical equipment before they can cause insulation breakdown or equipment failure. The K1-1P275-M provides both lightning current protection and switching surge protection in one compact device.
The integrated remote signalling contact enables building management systems (BMS), monitoring equipment or PLCs to receive immediate notification should the protection module require replacement, reducing maintenance time and improving system reliability in critical installations.
Typical Applications
- Main electrical distribution boards.
- Industrial control panels.
- Commercial buildings.
- Building management systems (BMS).
- Data centres.
- Telecommunications equipment.
- EV charging infrastructure.
- Solar PV installations.
- Water treatment facilities.
