Why Choose the Mersen 44020107 Surge-Trap K2 Surge Protection Device?
The Mersen 44020107, also identified as the K2-1P320-M, is a compact and dependable Type 2 surge protection device (SPD) designed to protect low-voltage electrical installations against transient overvoltages. As part of the advanced Mersen Surge-Trap K2 series, it provides reliable secondary surge protection for commercial, industrial and infrastructure electrical systems.
This single-pole surge arrester uses a pluggable protection cartridge, helping simplify inspection, servicing and replacement. A built-in visual status indicator provides clear confirmation of operating condition, while the integrated microswitch enables remote monitoring through control panels, building-management systems or industrial automation equipment.
With a maximum continuous operating voltage of 320 V AC, a nominal discharge current of 20 kA and a maximum discharge current of 50 kA, the Mersen 44020107 provides robust protection against induced voltage surges. Its one-module DIN-rail format makes it suitable for installation in compact distribution boards and electrical control enclosures.
Key Advantages
- Reliable Type 2 surge protection for low-voltage electrical installations.
- 50 kA maximum discharge current for effective transient overvoltage protection.
- 320 V AC maximum continuous operating voltage.
- Pluggable cartridge design simplifies maintenance and replacement.
- Integrated microswitch supports remote status indication.
- Compact single-module design for standard DIN-rail distribution boards.
Key Features
- Mersen Surge-Trap K2 series.
- Type 2 / Class II surge protection device.
- Single-pole, 1+0 configuration.
- 320 V AC maximum continuous operating voltage.
- 20 kA nominal discharge current.
- 50 kA maximum discharge current.
- Voltage protection level of ≤1.5 kV.
- Visual status indicator and remote signalling microswitch.
- Dynamic thermal disconnection with open-circuit failure mode.
- Pluggable cartridge and DIN-rail mounting format.
Reliable Surge Protection for Electrical Installations
Transient overvoltages can be caused by lightning activity, utility switching operations and the operation of inductive electrical equipment. These short-duration voltage spikes can damage control systems, machinery, power supplies and sensitive electronic components.
The Mersen Surge-Trap K2 series is designed to divert damaging surge currents safely away from connected equipment. Its high discharge capacity, rapid response time and thermal disconnection system help maintain dependable protection while reducing the risk of equipment failure and costly operational downtime.
Typical Applications
- Commercial and industrial distribution boards.
- Electrical control panels and switchgear.
- Building-management and automation systems.
- Manufacturing machinery and production equipment.
- Power supplies, drives and electronic control equipment.
- Secondary surge protection in low-voltage installations.
