Lovato SA1B1NA320R Type 1 and Type 2 monoblock surge protection device with 1P+N configuration, 25kA impulse current per pole, 100kA maximum discharge current and remote signalling.
£524.34
The Lovato SA1B1NA320R is a high-performance Type 1 and Type 2 monoblock surge protection device (SPD) designed to protect single-phase low-voltage electrical installations against lightning impulse currents, switching surges and transient overvoltages. Its 1P+N configuration provides coordinated protection between the line, neutral and protective earth conductors.
With an IEC impulse discharge current of 25 kA per pole using a 10/350 µs waveform, the SA1B1NA320R is suitable for installations exposed to severe surge conditions. Its monoblock construction combines the required protection components within a robust four-module assembly for straightforward installation in electrical distribution boards.
The device supports a maximum continuous operating voltage of 320 V AC, a nominal discharge current of 25 kA and a maximum discharge current of 100 kA. An integrated remote signalling contact allows its operating condition to be monitored through an alarm, building management system or industrial control system.
Surge protection devices divert damaging transient currents away from connected equipment and safely discharge them towards earth. This helps protect electrical insulation, automation equipment and sensitive electronics from premature failure while reducing the risk of costly system downtime.
The Lovato SA1B1NA320R combines Type 1 and Type 2 protection within a durable monoblock assembly. Its high 25 kA impulse current rating enables it to handle partial lightning currents, while its 100 kA maximum discharge capacity provides robust protection against severe transient overvoltages.
| Phase | Single Phase |
|---|---|
| Manufacturer | Lovato Electric |
| Series | SA1B |
| Model | SA1B1NA320R |
| Product type | Surge protection device |
| Construction | Monoblock |
| SPD classification | Type 1 and Type 2 |
| Application | AC power lines |
| Configuration | 1P+N |
| Number of protected poles | 2 |
| Nominal voltage | 230 V AC |
| Maximum continuous operating voltage (Uc) | 320 V AC |
| Impulse current (Iimp), 10/350 µs | 25 kA per pole |
| Nominal discharge current (In), 8/20 µs | 25 kA |
| Maximum discharge current (Imax), 8/20 µs | 100 kA |
| Short-circuit current rating (Isccr) | 25 kA |
| Voltage protection level, L-N | 1.4 kV |
| Voltage protection level, N-PE | 1.3 kV |
| Follow-current extinguishing capability | 100 kA |
| Remote signalling | Integrated relay output |
| Status indication | Optical |
| Protection rating | IP20 |
| Number of DIN modules | 4 |
| Mounting type | 35 mm DIN rail |
| Maximum flexible conductor size | 25 mm² |
| Maximum solid conductor size | 35 mm² |
| Product dimensions (H × W × D) | Approximately 103 × 54 × 72 mm |
| Weight | Approximately 388 g |
| Compliance | IEC/EN 61643-11 |
| Certification | EAC |
| EAN | 8013975217603 |
| HS Code | 85365080 |
It protects single-phase electrical installations and connected equipment against partial lightning currents, switching surges and transient overvoltages.
The device provides combined Type 1 and Type 2 surge protection, making it suitable for protection at the origin of an electrical installation and within main distribution boards.
The 1P+N configuration provides coordinated surge protection for the line and neutral conductors of a single-phase electrical system.
The device has an IEC impulse current rating of 25 kA per pole using a 10/350 µs waveform.
Yes. It includes an integrated remote signalling contact that can be connected to an alarm, control system or building management system.
The device occupies four DIN modules and mounts onto a standard 35 mm DIN rail inside a suitable electrical distribution board or control panel.
Lovato surge protection devices are used by electrical contractors, panel builders and automation engineers to protect critical installations against damaging lightning currents and 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...