Why Choose the Mersen STPT23-20K320V-4PM Surge Protection Device?
The Mersen 83230133 is a high performance Type 2+3 Surge Protection Device (SPD) designed to protect low voltage electrical installations from transient overvoltages caused by lightning strikes and switching events. As part of the Mersen Surge-Trap® Pluggable STPT23 Series, it combines robust surge protection with a compact pluggable design, making it ideal for commercial, industrial and automation applications.
Designed for three-phase plus neutral systems, this four-pole SPD provides reliable protection for switchboards, control panels and critical electrical equipment. The pluggable cartridges simplify servicing, while the integrated remote indication contact enables continuous monitoring of the device status for proactive maintenance.
With a maximum discharge current of 20 kA (8/20 μs), a 320 V AC continuous operating voltage (Uc) and a 4+0 TNS configuration, the Mersen 83230133 is suitable for protecting installations operating on 230/400 V AC and 277/480 V AC networks.
Key Advantages
- High performance Type 2+3 surge protection device.
- 20 kA maximum discharge current for dependable surge protection.
- 320 V AC continuous operating voltage suitable for higher voltage low voltage systems.
- Integrated remote indication for simple status monitoring.
- 4+0 TNS configuration for three-phase plus neutral installations.
- Pluggable modular design for quick maintenance and cartridge replacement.
Key Features
- Mersen Surge-Trap® Pluggable STPT23 Series.
- Model: STPT23-20K320V-4PM.
- Type 2+3 / Class II+III surge protection device.
- 20 kA Imax (8/20 μs).
- 10 kA nominal discharge current (In).
- 320 V AC continuous operating voltage (Uc).
- Four-pole 4+0 TNS configuration.
- Remote indication with pluggable cartridges.
Reliable Protection Against Electrical Surges
Surge protection devices divert damaging transient overvoltages away from connected equipment before they can cause insulation failure, electronic damage or costly downtime. Installing an SPD helps improve system reliability while extending the service life of sensitive electrical equipment.
The Mersen Surge-Trap® STPT23 Series is designed as the final stage of protection within low voltage installations where upstream Type 2 protection is already provided. It is suitable for industrial automation, commercial buildings, motor control centres, telecommunications, data centres and renewable energy applications.
Typical Applications
- Industrial control panels.
- Electrical distribution boards.
- Motor control centres.
- Automation and machinery systems.
- PLC, drive and instrumentation protection.
- Commercial buildings and critical infrastructure.
