Why Choose the Lovato SG2C4PA275 Surge Protection Device?
The Lovato SG2C4PA275 is a compact Type 2 surge protection device (SPD) designed to protect low-voltage AC electrical installations against transient overvoltages caused by indirect lightning effects and electrical switching events. Part of the Lovato SG2C surge protection range, this 4-pole device combines high surge-current capability with replaceable plug-in cartridges for straightforward maintenance.
The SG2C4PA275 provides a rated discharge current In of 20 kA per pole and a maximum discharge current Imax of 40 kA, based on the standard 8/20 µs surge-current waveform. Its maximum continuous operating voltage Uc is 275 V AC, with a voltage protection level Up below 1.5 kV.
Designed for 230/400 V AC TT and TN-S systems, the SG2C4PA275 features a compact two-module DIN rail format and frontal operating/end-of-life indication. This version is supplied without a remote relay contact, making it an efficient choice where local visual status indication is sufficient.
Key Advantages
- Dedicated Type 2 surge protection for low-voltage AC systems.
- 4-pole configuration suitable for three-phase installations with neutral.
- 20 kA rated discharge current In per pole.
- 40 kA maximum discharge current Imax for robust transient protection.
- 275 V AC maximum continuous operating voltage Uc.
- Replaceable plug-in protection cartridges simplify maintenance.
- Compact 2-module DIN rail design saves distribution-board space.
- Suitable for TT and TN-S power distribution systems.
Key Features
- Lovato SG2C surge protection series.
- Type 2 surge protection device.
- 4P pole arrangement.
- 230/400 V AC rated system voltage.
- 275 V AC maximum continuous operating voltage Uc.
- 20 kA rated discharge current In at 8/20 µs per pole.
- 40 kA maximum discharge current Imax at 8/20 µs.
- <1.5 kV voltage protection level Up.
- 25 kA short-circuit current rating.
- Integrated thermal protection.
- Frontal operating/end-of-life status indication.
- Replaceable plug-in protection cartridges.
- IP20 protection rating.
- DIN rail mounting for electrical distribution equipment.
Reliable Surge Protection for Three-Phase AC Systems
Type 2 surge protection devices are installed within low-voltage distribution systems to limit transient overvoltages generated by indirect lightning effects and electrical switching operations. The Lovato SG2C4PA275 diverts damaging surge energy away from downstream equipment, helping protect electrical controls, electronic devices and other sensitive loads.
The SG2C series combines high discharge capability with a compact modular design. Replaceable plug-in cartridges simplify servicing, while frontal condition indication allows the protection status to be checked quickly during routine electrical maintenance.
Typical Applications
- Three-phase 230/400 V AC distribution systems.
- TT and TN-S electrical installations.
- Industrial electrical distribution boards.
- Commercial building distribution panels.
- Machine and automation control cabinets.
- Protection of sensitive electrical and electronic equipment against transient overvoltages.
