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.
£148.42
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.
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.
| Voltage | 400 V |
|---|---|
| Phase | Three Phase |
| 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 | 3+1 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 |
It protects low voltage electrical installations and connected equipment against transient overvoltages caused by lightning strikes and switching events.
The Mersen 83230127 is a Type 2+3 / Class II+III surge protection device.
It is designed for 230/400 V AC three-phase plus neutral TT systems using a 3+1 configuration.
Yes. The unit features an integrated remote indication contact for monitoring the operational status of the surge protection device.
Leakage current free technology minimises continuous leakage current during normal operation, improving efficiency and reducing unnecessary stress on the electrical installation.
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.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...