Why Choose the Mersen 44120209 K1-2PG320-M Surge Protection Device?
The Mersen 44120209 K1-2PG320-M is a high-performance Type 1+2 Surge Protection Device (SPD) engineered to protect low-voltage electrical installations from lightning strikes and transient overvoltages. As part of the trusted Mersen Surge-Trap® K - K1 Series, this pluggable SPD provides dependable protection for commercial, industrial and infrastructure applications.
Designed for installation at the main distribution board, the K1-2PG320-M combines high surge handling capability with a compact DIN rail mounted design. Its integrated remote signalling microswitch enables convenient monitoring of device status, while the visual indication system makes maintenance simple and efficient.
With a 320 V AC maximum continuous operating voltage (Uc), 1+1 protection configuration and 12.5 kA lightning impulse current (Iimp), this surge protector is ideal for protecting sensitive electrical equipment in TT and TNS systems against damaging surge events.
Key Advantages
- Reliable Type 1+2 surge protection for low-voltage installations.
- Pluggable design simplifies maintenance and replacement.
- Integrated remote signalling microswitch for status monitoring.
- Suitable for TT and TNS network configurations.
- DIN rail mounting for fast installation.
- Protects electrical equipment from lightning and transient overvoltages.
Key Features
- Mersen Surge-Trap® K - K1 Series.
- IEC Class I+II / Type 1+2 SPD.
- 320 V AC maximum continuous operating voltage (Uc).
- 12.5 kA lightning impulse current (Iimp).
- 20 kA nominal discharge current (In).
- 50 kA maximum discharge current (Imax).
- 2-pole, 1+1 configuration.
- Visual status indication and remote microswitch.
- Compact DIN rail mounted housing.
Reliable Protection Against Electrical Surges
The Mersen K1-2PG320-M protects electrical installations by safely diverting high-energy surge currents caused by lightning strikes and switching transients. This helps reduce equipment damage, minimise downtime and improve the long-term reliability of electrical systems.
Its robust construction, pluggable cartridge design and integrated remote signalling make it well suited for modern industrial facilities, commercial buildings, renewable energy installations and critical infrastructure requiring dependable surge protection.
Typical Applications
- Main low-voltage distribution boards.
- Industrial control panels.
- Commercial buildings.
- Renewable energy installations.
- EV charging infrastructure.
- Water treatment facilities.
- Telecommunications equipment.
- Outdoor LED lighting installations.
