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SA03PA320R – SURGE PROTECTION DEVICE TYPE 1-2 3P
Lovato SA03PA320R combined Type 1 and Type 2 three-pole surge protection device with 12.5kA impulse current per pole, replaceable plug-in cartridges and remote signalling contact.
£224.27
Why Choose the Lovato SA03PA320R Surge Protection Device?
The Lovato SA03PA320R is a combined Type 1 and Type 2 surge protection device (SPD) designed to protect three-phase low-voltage electrical installations against lightning impulse currents, switching surges and transient overvoltages. Its three-pole configuration provides coordinated surge protection across all three phase conductors in industrial and commercial AC power systems.
Featuring replaceable plug-in protection cartridges, the SA03PA320R allows straightforward maintenance without replacing the complete surge protection assembly. An integrated remote signalling contact enables connection to external alarms, building management systems or industrial monitoring equipment for convenient condition monitoring.
With an IEC impulse discharge current of 12.5 kA per pole using a 10/350 µs waveform, a nominal discharge current of 20 kA per pole and a maximum discharge current of 40 kA per pole, the SA03PA320R provides dependable protection for industrial distribution boards, commercial switchboards and automation control panels.
Key Advantages
- Combined Type 1 and Type 2 surge protection in one device.
- Three-pole configuration for three-phase AC installations.
- 12.5 kA impulse current per pole using a 10/350 µs waveform.
- 20 kA nominal discharge current per pole.
- 40 kA maximum discharge current per pole.
- Replaceable plug-in cartridges simplify servicing and maintenance.
- Integrated remote signalling contact supports external status monitoring.
- Compact three-module design for standard DIN rail installations.
Key Features
- Lovato SA0 surge protection device series.
- Combined Type 1 and Type 2 SPD classification.
- Three-pole (3P) configuration.
- 300 V AC maximum continuous operating voltage.
- 12.5 kA impulse discharge current per pole.
- 20 kA nominal discharge current per pole.
- 40 kA maximum discharge current per pole.
- 1.5 kV voltage protection level.
- Replaceable plug-in surge protection cartridges.
- Visual operating-status indication.
- Integrated remote relay output.
- Compliant with IEC/EN 61643-11.
Reliable Three-Phase Surge Protection
Surge protection devices divert damaging transient currents away from connected equipment and safely discharge them towards earth. This helps reduce the risk of insulation failure, electronic component damage, production downtime and premature equipment replacement.
By combining Type 1 and Type 2 protection, the Lovato SA03PA320R can manage partial lightning currents while also limiting induced lightning surges and switching overvoltages. Its three-pole construction provides coordinated protection for three-phase power systems, while the remote contact enables the device condition to be monitored without direct visual inspection.
Typical Applications
- Three-phase main distribution boards.
- Industrial switchboards and control panels.
- Commercial electrical installations.
- Building management and automation systems.
- Machinery control cabinets.
- Installations with external lightning protection systems.
- Protection of PLCs, variable speed drives and sensitive electronic equipment.
Technical Specifications
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| Impulse Current Iimp (kA) | 12.5 kA | |
|---|---|---|
| SPD Type | Type 1+2 | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Surge protection device | |
| Nominal Discharge Current (In) | 20 kA | |
| Remote Signal | Yes | |
| Manufacturer | Lovato Electric | |
| Series | SA0 | |
| Model | SA03PA320R | |
| Product type | Surge protection device | |
| SPD classification | Type 1 and Type 2 | |
| Operating voltage type | AC | |
| Application | AC power lines | |
| Number of poles | 3P | |
| Number of DIN modules | 3 | |
| Maximum continuous operating voltage (Uc) | 300 V AC | |
| Impulse current (Iimp), 10/350 µs | 12.5 kA per pole | |
| Nominal discharge current (In), 8/20 µs | 20 kA per pole | |
| Maximum discharge current (Imax), 8/20 µs | 40 kA per pole | |
| Voltage protection level (Up) | 1.5 kV | |
| Cartridge type | Replaceable plug-in cartridge | |
| Remote signalling | Integrated relay output | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Operating temperature | -40°C to +80°C | |
| Compliance | IEC/EN 61643-11 | |
| HS Code | 85365080 |
Frequently Asked Questions
What is the Lovato SA03PA320R used for?
It protects three-phase AC electrical installations and connected equipment against lightning impulse currents, switching surges and transient overvoltages.
What type of surge protection does the SA03PA320R provide?
The device provides combined Type 1 and Type 2 protection, allowing it to handle partial lightning currents and lower-energy transient overvoltages.
What is the impulse current rating of the SA03PA320R?
The device has an IEC impulse discharge current rating of 12.5 kA per pole using a 10/350 µs waveform.
Can the protection cartridges be replaced?
Yes. The SA03PA320R uses replaceable plug-in cartridges, allowing individual protection modules to be changed without replacing the complete surge protection device.
Does the SA03PA320R support remote monitoring?
Yes. It includes an integrated remote signalling contact for connection to an alarm, control system or building management system.
How is the SA03PA320R installed?
The device occupies three DIN modules and mounts onto a standard DIN rail inside a suitable distribution board, switchboard or control panel.
Trusted by Electrical Professionals Worldwide
Lovato surge protection devices are used by electrical contractors, panel builders and automation engineers to protect critical three-phase installations against damaging lightning and switching overvoltages.
