Mersen 83010103 Surge-Trap Monobloc STMT1 Type 1 surge protection device, catalogue number STMT1-50K150V-1P, rated at 50 kA Iimp with 150 V maximum continuous operating voltage and 1-pole L-N configuration.
Original price was: £219.25.£162.03Current price is: £162.03.
The Mersen 83010103 is a high-performance Type 1 surge protection device designed to protect low-voltage electrical installations against high-energy transient overvoltages caused by lightning activity and switching events. Part of the Mersen Surge-Trap Monobloc STMT1 series, it provides robust first-stage protection for incoming power supplies in industrial and commercial electrical systems.
This surge protection device is built in a monobloc DIN rail mounted format, making it suitable for installation within distribution boards, control panels and switchgear assemblies. Its 1-pole L-N configuration is designed for single-phase applications where dependable surge protection is required at the supply entry point.
With a 50 kA impulse current rating, 150 V maximum continuous operating voltage and 120 V nominal operating voltage, the Mersen 83010103 provides strong protection for sensitive electrical and electronic equipment in installations exposed to lightning and transient surge risks.
Surge protection devices such as the Mersen 83010103 help protect electrical systems by diverting transient overvoltages away from connected equipment. This reduces the risk of damage to power supplies, control electronics, automation systems and other sensitive electrical components.
As a Type 1 surge arrester, the 83010103 is particularly suited to installations where the electrical supply may be exposed to direct or indirect lightning effects, including sites with external lightning protection systems or overhead supply lines.
| Voltage | 120 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap Monobloc STMT1 |
| Model | 83010103 |
| Catalogue number | STMT1-50K150V-1P |
| Product type | Surge protection device |
| SPD type | Type 1 / Class I |
| Configuration | L-N |
| Number of poles | 1 pole |
| Nominal operating voltage | 120 V |
| Maximum continuous operating voltage | 150 V |
| Impulse current rating | 50 kA Iimp (10/350 µs) |
| Format | Monobloc |
| Module width | 2 modules |
| Protection rating | IP20 |
| Short-circuit withstand rating | 50 kA |
| Mounting type | DIN rail mounting |
| EAN / UPC | 8435297852322 |
| RoHS compliant | Yes |
| Weight | approx. 0.251 kg |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
The Mersen 83010103 is used to protect low-voltage electrical installations against transient overvoltages caused by lightning strikes and switching surges.
The 83010103 is a Type 1 / Class I surge protection device, suitable for first-stage surge protection at the incoming supply.
The Mersen 83010103 has an impulse current rating of 50 kA Iimp using a 10/350 µs waveform.
The device has a 120 V nominal operating voltage and a 150 V maximum continuous operating voltage.
The Mersen 83010103 is typically installed on DIN rail inside distribution boards, switchboards or control panels at the incoming power supply point.
Mersen surge protection devices are trusted by electrical engineers, panel builders and contractors to provide reliable overvoltage protection for industrial, commercial and low-voltage 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...