Why Choose the Mersen 44020210 K2-2P320 Surge Protection Device?
The Mersen 44020210, also identified as the K2-2P320, is a robust Type 2 surge protection device (SPD) designed to safeguard single-phase low-voltage electrical installations from transient overvoltages. As part of the trusted Mersen Surge-Trap K2 series, it provides reliable surge protection for 277 V TN-S systems, helping protect sensitive electrical equipment against lightning-induced surges and switching transients.
Its compact pluggable design enables rapid inspection and replacement of the protection module without removing the DIN-rail base. An integrated visual status indicator allows maintenance personnel to confirm the operating condition quickly, reducing downtime while maintaining continuous protection.
With a 277 V AC nominal operating voltage, 320 V AC maximum continuous operating voltage, a 20 kA nominal discharge current and a 50 kA maximum discharge current, the Mersen 44020210 delivers dependable protection for commercial buildings, industrial facilities and infrastructure installations requiring high-performance surge suppression.
Key Advantages
- Reliable Type 2 surge protection for single-phase TN-S electrical systems.
- 2+0 protection configuration for effective line protection.
- 50 kA maximum discharge current for excellent transient protection.
- Pluggable cartridge simplifies maintenance and replacement.
- Compact DIN-rail design saves valuable panel space.
- Visual status indication enables quick routine inspection.
Key Features
- Mersen Surge-Trap K2 series.
- Type 2 / Class II surge protection device.
- 2+0 internal configuration.
- Two-pole design.
- 277 V AC nominal operating voltage.
- 320 V AC maximum continuous operating voltage (Uc).
- 20 kA nominal discharge current (In).
- 50 kA maximum discharge current (Imax).
- Protection modes: L-PE / N-PE.
- Dynamic thermal disconnection technology.
- Visual operating status indicator.
- Pluggable DIN-rail construction.
Reliable Protection for 277 V TN-S Electrical Systems
Electrical transients caused by indirect lightning strikes, switching operations and inductive loads can damage PLCs, drives, power supplies and other critical equipment. Installing a dedicated Type 2 surge protection device significantly reduces the risk of equipment failure and costly downtime.
The Mersen Surge-Trap K2 range combines high discharge capability, fast response and replaceable protection cartridges, making maintenance simple while providing long-term protection for valuable electrical infrastructure.
Typical Applications
- 277 V TN-S distribution boards.
- Industrial switchgear and control panels.
- Commercial electrical installations.
- Building management systems.
- PLC and automation cabinets.
- Protection of sensitive electronic equipment.
