Lovato SA31NA320R Type 3 surge protection device with plug-in cartridge, 1P+N configuration and remote signalling contact for protecting AC power systems.
£83.10
The Lovato SA31NA320R is a high-performance Type 3 surge protection device (SPD) designed to protect sensitive electrical and electronic equipment from transient overvoltages caused by switching events and residual lightning surges. As part of the trusted Lovato Electric SA3 surge protection range, it provides reliable protection for final distribution boards, control panels and industrial automation systems.
Designed for installation on 230 V AC power systems, the SA31NA320R features a 1P+N configuration with a replaceable plug-in protection cartridge and integrated remote status signalling contact. Its compact single-module DIN rail design simplifies installation while allowing quick maintenance when the cartridge reaches end of life.
Engineered to IEC/EN 61643-11 standards, this surge protection device offers a 10 kV / 5 kA combination wave rating, rapid response times and low residual voltage, helping protect PLCs, HMIs, instrumentation, control equipment and other sensitive electronic devices in commercial and industrial environments.
Transient overvoltages can significantly reduce the lifespan of electronic equipment and may lead to costly downtime. The Lovato SA31NA320R helps minimise these risks by diverting surge energy safely to earth before it reaches sensitive devices.
Its replaceable cartridge, visual status indicator and remote monitoring contact make the device ideal for industrial automation, building services and commercial electrical installations where equipment reliability and preventative maintenance are essential.
| Phase | Single Phase |
|---|---|
| Manufacturer | Lovato Electric |
| Series | SA3 |
| Model | SA31NA320R |
| Product type | Type 3 Surge Protection Device (SPD) |
| Application | AC power lines |
| Operating voltage | 230 V AC |
| Maximum continuous operating voltage (Uc) | 320 V AC |
| Number of poles | 1P+N |
| Combination wave rating (Uoc/Icw) | 10 kV / 5 kA |
| Voltage protection level (Up) | <1.5 kV |
| Response time | <100 ns |
| Maximum short-circuit current | 10 kA |
| Remote status indication | Yes |
| Mounting type | DIN rail |
| DIN modules | 1 |
| Operating temperature | -40°C to +85°C |
| Weight | Approx. 140 g |
| Compliance | IEC/EN 61643-11 |
| HS Code | 85365080 |
It is a Type 3 surge protection device designed to protect sensitive electrical and electronic equipment from transient overvoltages on AC power systems.
The SA31NA320R is intended for 230 V AC single-phase systems with a 1P+N configuration.
Yes. It includes an integrated auxiliary contact for remote status indication, allowing monitoring from building or automation systems.
Yes. The surge protection cartridge is plug-in and can be replaced without changing the complete device.
It is typically installed on a DIN rail inside electrical distribution boards, control panels and industrial automation cabinets.
Lovato Electric surge protection devices are trusted worldwide by panel builders, electrical contractors and automation engineers to help safeguard critical equipment from 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...
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...