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Mersen Surge Protector Type 2+3 SPD 4 Pole 230/400 Volt 10KA TT Remote Indication
Mersen STPT23-20K275V-4PG-LFM Type 2+3 leakage current free surge protection device with 20 kA discharge capacity, remote indication and 3+1 TT configuration.
£111.32
Why Choose the Mersen 83230127 Surge Protection Device?
The Mersen 83230127 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 SPD delivers dependable protection for three-phase plus neutral electrical systems in commercial, industrial and automation environments.
Designed for installation close to sensitive equipment, this pluggable surge protection device safeguards electrical systems against voltage spikes caused by lightning strikes and switching events. Its modular construction enables quick replacement, while the integrated remote indication contact allows continuous monitoring of device status.
With a maximum discharge current of 20 kA (8/20 μs), a 275 V AC continuous operating voltage (Uc) and a 3+1 TT configuration, the Mersen 83230127 provides reliable protection for distribution boards, machinery control panels, PLC systems and industrial automation equipment.
Key Advantages
- High performance Type 2+3 surge protection device.
- Leakage current free technology for enhanced installation safety.
- 20 kA maximum discharge current for dependable transient overvoltage protection.
- Remote indication contact for easy status monitoring.
- Pluggable modular design for fast maintenance and replacement.
- Protects sensitive electrical, automation and control equipment.
Key Features
- Mersen Surge-Trap® Pluggable STPT23 LF Series.
- Model: STPT23-20K275V-4PG-LFM.
- 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).
- 3+1 TT four-pole configuration.
- Remote indication and leakage current free operation.
Reliable Protection Against Electrical Surges
Surge protection devices safely divert transient overvoltages away from connected electrical equipment before they can cause insulation failure, electronic damage or costly downtime. Installing an SPD helps improve equipment reliability and extends the service life of sensitive industrial electronics.
The Mersen Surge-Trap® STPT23 LF Series is designed as a final stage of protection for low voltage installations and is suitable for industrial automation, commercial buildings, telecommunications, data centres, water treatment facilities, renewable energy systems and electrical distribution panels.
Typical Applications
- Industrial control panels.
- Electrical distribution boards.
- PLC and automation systems.
- Commercial buildings.
- Telecommunications and data centres.
- Water treatment and renewable energy installations.
Technical Specifications
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| Voltage | 400 V | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | Surge protection device | |
| SPD Type | Type 2+3 | |
| Earthing System | TN-S, TT | |
| Nominal Discharge Current (In) | 10 kA | |
| Remote Signal | Yes | |
| Manufacturer | Mersen | |
| Series | Surge-Trap® Pluggable STPT23 LF Series | |
| Model | STPT23-20K275V-4PG-LFM | |
| SKU | 83230127 | |
| 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 | |
| Continuous operating voltage (Uc) | 275 V AC | |
| Nominal operating voltage (Un) | 230/400 V AC | |
| System configuration | TN-S, TT | |
| Number of poles | 4 | |
| Number of modules | 4 | |
| Mounting type | DIN rail | |
| Format | Pluggable | |
| Remote indication | Yes | |
| Leakage current free | Yes | |
| Standards | EN/IEC 61643-11 | |
| Dimensions (H × W × D) | Approx. 90 × 72 × 70 mm | |
| RoHS compliant | Yes | |
| HS Code | 85363090 | |
| Country of Manufacture | Spain |
Frequently Asked Questions
What is the Mersen 83230127 used for?
It protects low voltage electrical installations and connected equipment against transient overvoltages caused by lightning strikes and switching events.
What type of surge protection device is it?
The Mersen 83230127 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 TT systems using a 3+1 configuration.
Does this device include remote indication?
Yes. The unit features an integrated remote indication contact for monitoring the operational status of the surge protection device.
What does leakage current free mean?
Leakage current free technology minimises continuous leakage current during normal operation, improving efficiency and reducing unnecessary stress on the electrical installation.
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.
