Mersen 44120003 surge protection device for protecting low-voltage electrical installations against transient overvoltages.
£76.34
The Mersen 44120003 is a surge protection device (SPD) designed to help protect low-voltage electrical installations against transient overvoltages caused by lightning activity and switching events. Engineered for dependable operation, it helps safeguard sensitive electrical and electronic equipment while improving the reliability of commercial and industrial power distribution systems.
Its compact modular design enables simple installation within electrical distribution boards and control panels, while its robust construction makes it suitable for demanding environments where continuous electrical protection is essential.
By safely diverting surge energy away from connected equipment, the Mersen 44120003 helps reduce the risk of equipment failure, minimise downtime and extend the service life of valuable electrical assets.
Electrical systems are regularly exposed to transient overvoltages generated by lightning activity and switching operations. Installing a surge protection device helps divert these damaging surges safely to earth, reducing the likelihood of equipment damage and improving operational continuity.
Mersen surge protection solutions are widely used in industrial, commercial and infrastructure projects where dependable protection of electrical assets is essential for maintaining system availability.
| Voltage | 277 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Manufacturer part number | 44120003 |
| Product type | Surge protection device |
| Application | Low-voltage electrical installations |
| Mounting type | DIN rail |
| Installation location | Distribution boards and control panels |
| RoHS compliant | Yes |
The Mersen 44120003 is designed to protect low-voltage electrical installations and connected equipment against transient overvoltages.
It is typically installed on a DIN rail inside electrical distribution boards and industrial control panels.
The device is suitable for commercial buildings, industrial facilities and other low-voltage electrical systems requiring surge protection.
Surge protection devices help minimise equipment damage caused by lightning activity and switching events, improving system reliability and reducing maintenance costs.
Yes. It is designed for use in industrial and commercial electrical installations where dependable surge protection is required.
Mersen manufactures high-quality electrical protection products trusted worldwide to improve power system reliability and protect valuable electrical equipment against damaging transient overvoltages.
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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...