Lovato SA1B3PA320R Type 1, Type 2 and Type 3 three-pole monoblock surge protection device with 25kA impulse current per pole, 100kA maximum discharge current and remote signalling.
£610.19
The Lovato SA1B3PA320R is a high-capacity Type 1, Type 2 and Type 3 monoblock surge protection device (SPD) designed to protect three-phase low-voltage electrical installations against direct lightning effects, induced surges and switching overvoltages. Its three-pole configuration provides coordinated protection across all three phase conductors in industrial and commercial AC power systems.
With an IEC impulse current rating of 25 kA per pole using a 10/350 µs waveform, the SA1B3PA320R is suitable for installations exposed to severe surge conditions. Its monoblock construction combines several surge protection classes within one robust unit, helping simplify installation while providing effective protection at main and sub-distribution level.
The device supports a maximum continuous operating voltage of 320 V AC, a nominal discharge current of 25 kA per pole and a maximum discharge current of 100 kA per pole. An integrated remote signalling contact enables connection to an alarm, building management system or industrial control system for convenient status monitoring.
Surge protection devices divert damaging transient currents away from connected equipment and safely discharge them towards earth. This helps protect electrical insulation, automation components and sensitive electronic equipment from premature failure while reducing the risk of costly downtime.
The Lovato SA1B3PA320R combines several surge protection classes within a durable monoblock assembly. Its 25 kA impulse current rating per pole allows it to manage partial lightning currents, while its 100 kA maximum discharge capacity provides robust protection against severe switching and induced overvoltages.
| Phase | Three Phase |
|---|---|
| Manufacturer | Lovato Electric |
| Series | SA1B |
| Model | SA1B3PA320R |
| 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 | 3P |
| System voltage | 230/400 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 per pole |
| Maximum discharge current (Imax), 8/20 µs | 100 kA per pole |
| Voltage protection level (Up) | 1.4 kV |
| Remote signalling | Integrated relay output |
| Status indication | Optical |
| Protection rating | IP20 |
| Number of DIN modules | 6 |
| Mounting type | DIN rail |
| Weight | Approximately 616 g |
| Compliance | IEC/EN 61643-11 |
| Certification | EAC |
| HS Code | 85365080 |
It protects three-phase low-voltage 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 for 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 SA1B3PA320R has a maximum discharge current rating of 100 kA per pole 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 six DIN modules and mounts onto a standard DIN rail inside a suitable main distribution board, switchboard or industrial control panel.
Lovato surge protection devices are used by electrical contractors, panel builders and automation engineers to protect critical three-phase installations against damaging lightning currents and transient overvoltages.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...