Lovato SA1B1PA320R Type 1, Type 2 and Type 3 single-pole monoblock surge protection device with 25kA impulse current, 100kA maximum discharge current and remote signalling.
£262.20
The Lovato SA1B1PA320R is a high-capacity Type 1, Type 2 and Type 3 monoblock surge protection device (SPD) designed to protect low-voltage AC electrical installations against direct lightning effects, induced surges and switching overvoltages. Its single-pole configuration is intended for protecting an individual phase conductor in suitable electrical distribution systems.
With an IEC impulse current rating of 25 kA per pole using a 10/350 µs waveform, the SA1B1PA320R is engineered for demanding installations exposed to severe surge conditions. Its monoblock construction combines high discharge capability with a compact two-module DIN rail format, helping panel builders create reliable and space-efficient protection systems.
The device has 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 status 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 SA1B1PA320R combines multiple surge protection classes within a durable monoblock assembly. Its 25 kA impulse current rating enables it to manage 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 | SA1B1PA320R |
| Product type | Surge protection device |
| Construction | Monoblock |
| SPD classification | Type 1, Type 2 and Type 3 |
| Operating voltage type | AC |
| Application | AC power lines |
| Number of poles | 1P |
| 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 (Up) | 1.4 kV |
| Remote signalling | Integrated relay output |
| Status indication | Optical |
| Number of DIN modules | 2 |
| Mounting type | DIN rail |
| Weight | Approximately 303 g |
| Compliance | IEC/EN 61643-11 |
| Certification | EAC |
| EAN | 8013975217597 |
| HS Code | 85365080 |
It protects low-voltage AC electrical installations and connected equipment against partial lightning currents, switching surges and transient overvoltages.
The device provides combined Type 1, Type 2 and Type 3 surge protection, allowing coordinated protection against lightning currents and lower-energy transient overvoltages.
The device has an IEC impulse current rating of 25 kA per pole using a 10/350 µs waveform.
The SA1B1PA320R has a maximum discharge current rating of 100 kA using an 8/20 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 two DIN modules and mounts onto a standard DIN rail inside a suitable distribution board, switchboard 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...