Why Choose the Lovato SA04PA320R Surge Protection Device?
The Lovato SA04PA320R 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 four-pole configuration provides coordinated surge protection across four conductors in industrial and commercial AC power systems.
Featuring replaceable plug-in protection cartridges, the SA04PA320R allows individual protection modules to be replaced without removing the complete surge protection assembly. An integrated remote signalling contact enables connection to alarms, control systems and building management 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 SA04PA320R 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.
- Four-pole configuration for multi-conductor 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 maintenance.
- Integrated remote signalling contact supports external monitoring.
- Compact DIN rail design for straightforward panel installation.
Key Features
- Lovato SA0 surge protection device series.
- Combined Type 1 and Type 2 SPD classification.
- Four-pole (4P) 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 Four-Pole Surge Protection
Surge protection devices divert damaging transient currents away from connected equipment and discharge them safely 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 SA04PA320R can manage partial lightning currents while also limiting induced lightning surges and switching overvoltages. Its four-pole construction supports coordinated protection across multi-conductor power systems, while the remote contact allows its condition to be monitored without direct visual inspection.
Typical Applications
- Three-phase distribution boards with neutral conductors.
- 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 electronics.
