Why Choose the Lovato SG2C4PA275R Type 2 Surge Protection Device?
The Lovato SG2C4PA275R is a compact and reliable Type 2 surge protection device (SPD) designed to protect low-voltage three-phase AC electrical installations against transient overvoltages caused by indirect lightning effects, induced surges and electrical switching operations. As part of the Lovato Electric SG2C series, it combines high surge discharge capability with replaceable plug-in cartridges in a space-saving DIN rail format.
Designed with a 4P configuration, the SG2C4PA275R provides a rated discharge current In of 20 kA per pole and a maximum discharge current Imax of 40 kA. Its voltage protection level Up of less than 1.5 kV helps limit potentially damaging transient voltages reaching downstream electrical and electronic equipment.
The SG2C4PA275R is suitable for 230/400 V AC systems and has a maximum continuous operating voltage Uc of 275 V AC. It also incorporates thermal protection, frontal operating/end-of-life indication and a remote contact, allowing SPD status to be monitored locally or remotely within electrical control and building management systems.
Key Advantages
- Type 2 surge protection for low-voltage three-phase AC power systems.
- 4P configuration suitable for three-phase electrical distribution applications.
- 20 kA rated discharge current In per pole for effective transient surge protection.
- 40 kA maximum discharge current Imax for high surge handling capability.
- <1.5 kV voltage protection level Up to help protect downstream equipment.
- Replaceable plug-in cartridge design simplifies maintenance.
- Integrated remote contact and frontal operating/end-of-life indication.
- Compact two-module DIN rail design helps conserve distribution board space.
Key Features
- Lovato Electric SG2C series.
- Type 2 surge protection device.
- 4P pole configuration.
- 230/400 V AC rated system voltage.
- 275 V AC maximum continuous operating voltage Uc.
- 20 kA rated discharge current In (8/20 µs) per pole.
- 40 kA maximum discharge current Imax (8/20 µs).
- <1.5 kV voltage protection level Up.
- <25 ns response time for surge protection paths.
- Integrated thermal protection.
- Frontal operating/end-of-life status indication.
- Remote status contact for external monitoring.
- Replaceable plug-in surge protection cartridges.
- Compact two-module DIN rail mounting.
Reliable Protection Against Transient Overvoltages
Type 2 surge protection devices such as the Lovato SG2C4PA275R divert transient surge currents away from sensitive electrical equipment while limiting the voltage appearing across the protected installation. They are designed to protect low-voltage power systems against transient overvoltages associated with indirect lightning effects and switching events.
The SG2C series combines high discharge capability with compact construction, replaceable plug-in cartridges, thermal protection and clear status indication. The SG2C4PA275R additionally provides remote status signalling, making it well suited to distribution boards where both efficient use of DIN rail space and external monitoring of surge protection status are required.
Typical Applications
- Three-phase electrical distribution boards.
- Commercial and industrial electrical installations.
- TT and TN-S power distribution systems.
- Industrial control and automation panels.
- Building services and electrical infrastructure.
- Electrical installations containing sensitive electronic equipment.
- Three-phase AC systems requiring Type 2 transient overvoltage protection.
