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Mersen Surge Protector Type 2+3 SPD 4 Pole 230/400 Volt 10KA TNS
Mersen 83230136 STPT23-20K275V-4P-LF Type 2+3 leakage current free surge protection device with 20 kA discharge capacity, 275 V AC continuous operating voltage and 4+0 TNS configuration.
£97.82
Why Choose the Mersen 83230136 Surge Protection Device?
The Mersen 83230136 is a high performance Type 2+3 Surge Protection Device (SPD) designed to protect low voltage electrical installations against transient overvoltages. Part of the Mersen Surge-Trap® Pluggable STPT23 LF Series, this leakage current free device provides dependable protection for three-phase plus neutral electrical systems in commercial, industrial and automation environments.
Engineered for DIN rail installation, this pluggable SPD helps safeguard sensitive electrical equipment from voltage spikes caused by lightning activity, switching operations and network disturbances. Its compact modular format allows fast cartridge replacement, supporting straightforward maintenance and reduced downtime.
With a maximum discharge current of 20 kA (8/20 μs), a 275 V AC continuous operating voltage (Uc) and a 4+0 TNS configuration, the Mersen 83230136 is ideal for protecting distribution boards, switchboards, PLC systems, drives and industrial control equipment operating on 230/400 V AC electrical systems.
Key Advantages
- High performance Type 2+3 surge protection device.
- Leakage current free technology for enhanced installation performance.
- 20 kA maximum discharge current for reliable transient overvoltage protection.
- 4+0 TNS four-pole configuration for three-phase plus neutral installations.
- Pluggable modular design for fast maintenance and replacement.
- Helps protect sensitive automation, control and electrical distribution equipment.
Key Features
- Mersen Surge-Trap® Pluggable STPT23 LF Series.
- Model: STPT23-20K275V-4P-LF.
- Type 2+3 / Class II+III surge protection device.
- 20 kA Imax (8/20 μs).
- 10 kA nominal discharge current (In).
- 275 V AC continuous operating voltage (Uc).
- Four-pole, 4+0 TNS configuration.
- Leakage current free pluggable cartridge format.
Reliable Protection Against Electrical Surges
Surge protection devices safely divert 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 operational life of sensitive electrical and automation equipment.
The Mersen Surge-Trap® STPT23 LF Series is designed as a final stage of protection in low voltage installations where upstream Type 2 protection is already installed, making it suitable for use close to the equipment being protected in switchboards, control panels and machinery systems.
Typical Applications
- Industrial control panels.
- Electrical distribution boards.
- Motor control centres.
- Automation and machinery systems.
- PLC, drive and instrumentation protection.
- Three-phase plus neutral TNS electrical installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Voltage | 400 V | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | Surge protection device | |
| SPD Type | Type 2+3 | |
| Earthing System | TN-S | |
| Nominal Discharge Current (In) | 10 kA | |
| Remote Signal | No | |
| Manufacturer | Mersen | |
| Series | Surge-Trap® Pluggable STPT23 LF Series | |
| Model | STPT23-20K275V-4P-LF | |
| SKU | 83230136 | |
| Product type | Surge Protection Device (SPD) | |
| SPD classification | Type 2+3 / Class II+III | |
| Maximum discharge current (Imax) | 20 kA (8/20 μs) | |
| Nominal Discharge Current (In) | 10 kA | |
| Combined voltage pulse (Uoc) | 10 kV | |
| Continuous operating voltage (Uc) | 275 V AC | |
| Nominal operating voltage (Un) | 230/400 V AC | |
| System configuration | TN-S | |
| Number of poles | 4 | |
| Number of modules | 4 | |
| Mounting type | DIN rail | |
| Format | Pluggable modular device | |
| Protection rating | IP20 | |
| Short circuit withstand (ISCCR) | 25 kA | |
| Maximum back-up fuse | 63 A gG | |
| Response time | 25 ns | |
| RoHS compliant | Yes | |
| EAN/UPC | 8435297852360 | |
| HS Code | 85363090 | |
| Country of Manufacture | Spain |
Frequently Asked Questions
What is the Mersen 83230136 used for?
It is used to protect low voltage electrical installations and connected equipment from transient overvoltages caused by lightning activity, switching events and electrical disturbances.
What type of surge protection device is the Mersen 83230136?
The Mersen 83230136 is a Type 2+3 / Class II+III surge protection device.
What electrical system is this SPD designed for?
It is designed for 230/400 V AC three-phase plus neutral TNS systems using a 4+0 configuration.
What is the maximum discharge current?
The device provides a maximum discharge current of 20 kA (8/20 μs) with a nominal discharge current of 10 kA.
Is the Mersen 83230136 leakage current free?
Yes. It is part of the leakage current free STPT23 LF Series, helping reduce continuous leakage current during normal operation.
Trusted by Electrical Professionals Worldwide
Mersen Surge-Trap® surge protection devices are trusted by electrical engineers, panel builders and industrial maintenance teams to safeguard critical electrical infrastructure from damaging transient overvoltages.
