Mersen 83010100 Surge-Trap Monobloc STMT1 Type 1 surge protection device, catalogue number STMT1-50K275V-1P, rated at 50 kA Iimp with 230 V nominal voltage and 275 V maximum continuous operating voltage.
Original price was: £203.01.£150.03Current price is: £150.03.
The Mersen 83010100 is a high-performance Type 1 surge protection device (SPD) designed to protect low-voltage electrical installations against transient overvoltages caused by direct lightning strikes and switching events. As part of the Mersen Surge-Trap® Monobloc STMT1 Series, it provides robust first-stage surge protection for incoming power supplies in industrial, commercial and infrastructure applications.
Featuring a compact monobloc DIN rail mounted design, the 83010100 is suitable for installation within distribution boards, switchgear and control panels. It incorporates Mersen's multi-discharge technology with leakage current free operation, delivering reliable protection throughout the life of the installation.
With a 50 kA lightning impulse current rating, a 230 V nominal operating voltage and a 275 V maximum continuous operating voltage (Uc), the Mersen 83010100 is ideal for single-phase installations requiring dependable protection against high-energy surge events.
The Mersen 83010100 diverts high-energy transient overvoltages safely to earth before they can damage sensitive electrical and electronic equipment. Installing a Type 1 SPD at the incoming supply helps improve system reliability and reduces downtime caused by lightning-induced surges.
It is particularly suitable for installations equipped with external lightning protection systems, overhead supply lines or locations exposed to high lightning activity, providing the first level of surge protection in accordance with EN IEC 61643-11.
| Voltage | 230 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Monobloc STMT1 Series |
| Model | 83010100 |
| Catalogue number | STMT1-50K275V-1P |
| Product type | Surge protection device |
| SPD classification | Type 1 / Class I |
| Configuration | L-N |
| Number of poles | 1 pole |
| Nominal operating voltage (Un) | 230 V AC |
| Maximum continuous operating voltage (Uc) | 275 V AC |
| Lightning impulse current (Iimp) | 50 kA (10/350 μs) |
| Nominal discharge current (In) | 50 kA (8/20 μs) |
| Protection level (Up) | ≤ 2 kV |
| Short-circuit withstand rating | 50 kA |
| Protection rating | IP20 |
| Mounting type | 35 mm DIN rail |
| Module width | 2 modules |
| Back-up fuse | 500 A gG |
| Dimensions (H × W × D) | approx. 89.9 × 36.1 × 70.1 mm |
| Weight | approx. 0.254 kg |
| RoHS compliant | Yes |
The Mersen 83010100 protects low-voltage electrical installations against transient overvoltages caused by direct lightning strikes and switching surges.
The 83010100 is a Type 1 / Class I surge protection device designed for installation at the incoming electrical supply.
The Mersen 83010100 has a 50 kA Iimp lightning impulse current rating using a 10/350 μs waveform.
The device is designed for 230 V AC systems with a maximum continuous operating voltage of 275 V AC.
The Mersen 83010100 is normally installed on a DIN rail within the main distribution board or incoming electrical panel as the first stage of surge protection.
Mersen Surge-Trap® protection devices are trusted by electrical engineers and panel builders to provide dependable lightning and transient surge protection for industrial and commercial electrical installations.
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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...