Why Choose the Mersen K1-1P320-M Type 1+2 Surge Protection Device?
The Mersen K1-1P320-M, product code 44120107, is a premium Type 1+2 Surge Protection Device (SPD) designed to protect low-voltage electrical installations against lightning-induced surges and transient overvoltages. As part of the Mersen Surge-Trap® K1 Series, it combines Type 1 and Type 2 protection within a compact pluggable module and incorporates an integrated remote signalling microswitch for continuous status monitoring.
Designed for 277 V AC single-phase systems, the K1-1P320-M features a 1+0 protection configuration, a maximum continuous operating voltage (Uc) of 320 V AC, and a replaceable cartridge that simplifies maintenance. The remote signalling contact enables connection to building management systems (BMS), PLCs or alarm circuits for immediate notification if the protection module requires replacement.
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 K1-1P320-M provides dependable protection for sensitive electrical equipment while meeting IEC 61643-11 requirements.
Key Advantages
- Combined Type 1 + Type 2 surge protection.
- Integrated remote signalling contact for monitoring device status.
- Designed for 277 V AC single-phase systems.
- Pluggable cartridge enables fast maintenance.
- 12.5 kA lightning impulse current (Iimp).
- 50 kA maximum discharge current (Imax).
Key Features
- Manufacturer: Mersen
- Series: Surge-Trap® K1
- Model: K1-1P320-M
- Product code: 44120107
- SPD Type: IEC Class I + II (Type 1+2)
- Configuration: 1+0 (L-N)
- Integrated microswitch for remote signalling.
- Visual operating status indicator.
Reliable Surge Protection with Remote Monitoring
Type 1+2 surge protection devices safely divert lightning currents and transient overvoltages away from sensitive electrical equipment before damage can occur. They provide the first level of protection within the main distribution board, helping to improve system reliability and minimise costly downtime.
The integrated remote signalling microswitch allows facility managers and maintenance teams to monitor the operational status of the SPD remotely via building management systems or PLCs, enabling rapid maintenance should the protection cartridge require replacement.
Typical Applications
- Main electrical distribution boards.
- Industrial control panels.
- Commercial buildings.
- Building management systems (BMS).
- Data centres.
- Telecommunications equipment.
- Solar photovoltaic installations.
- Battery energy storage systems.
- EV charging infrastructure.
