Lovato SG2C3NA275 is a 3P+N Type 2 surge protection device for 230/400 V AC systems with 275 V AC maximum continuous operating voltage, 20 kA rated discharge current per pole and 40 kA maximum discharge current.
£276.11
The Lovato SG2C3NA275 is a compact Type 2 surge protection device (SPD) designed to protect three-phase AC power systems and connected electrical equipment against transient overvoltages. As part of the Lovato SG2C surge protection range, it features a 3P+N configuration and plug-in protection cartridges for convenient installation and servicing in low-voltage distribution systems.
Designed for 230/400 V AC systems, the SG2C3NA275 has a maximum continuous operating voltage Uc of 275 V AC and a rated discharge current In of 20 kA per pole using an 8/20 µs waveform. Its maximum discharge current Imax is 40 kA for both L-N and N-PE protection paths, providing robust protection against transient surges associated with switching operations and indirect lightning effects.
The SG2C3NA275 provides a voltage protection level Up of less than 1.5 kV and incorporates thermal isolation protection together with frontal operating/end-of-life indication. Its compact 2-module DIN rail format makes it particularly suitable for secondary distribution boards, control panels and terminal equipment where effective surge protection and efficient use of panel space are important.
Type 2 surge protection devices such as the Lovato SG2C3NA275 are designed to limit transient overvoltages within low-voltage AC distribution systems. During a surge event, the SPD provides a controlled path for surge current, helping reduce the voltage reaching downstream equipment and protecting sensitive electrical and electronic components from potentially damaging transients.
The SG2C3NA275 combines a 20 kA nominal discharge current with a 40 kA maximum discharge capability and a voltage protection level below 1.5 kV. Its 3P+N arrangement, thermal protection, visual status indication and replaceable cartridges make it a practical solution for coordinated surge protection in three-phase industrial, commercial and building electrical systems.
| HS Code | 85365080 |
|---|---|
| Manufacturer | Lovato Electric |
| Series | SG2C |
| Model | SG2C3NA275 |
| Product type | Surge protection device (SPD) |
| Application | AC power lines |
| SPD type / class | Type 2 |
| System voltage | 230/400 V AC |
| Number of poles | 3P+N |
| Number of DIN modules | 2 |
| Maximum continuous operating voltage Uc | 275 V AC |
| Rated discharge current In (8/20 µs) | 20 kA per pole |
| Maximum discharge current Imax (8/20 µs), L-N / N-PE | 40 / 40 kA |
| Voltage protection level Up, L-N / N-PE | <1.5 / <1.5 kV |
| Response time, L-N / N-PE | <25 / 100 ns |
| Maximum short-circuit current at 50 Hz | 25 kA |
| Thermal isolation protection | Yes |
| Status indication | Frontal operating / end-of-life indication |
| Maximum flexible conductor section | 4 mm² (L, N) / 25 mm² (PE) |
| Maximum rigid conductor section | 6 mm² (L, N) / 35 mm² (PE) |
| Operating temperature | -40 to +85 °C |
| Maximum operating altitude | 2,000 m |
| Mounting type | DIN rail |
| Construction | Plug-in replaceable cartridges |
| Weight | 527 g |
| EAN | 8013975313190 |
The SG2C3NA275 is a Type 2 surge protection device designed to protect compatible three-phase AC power systems and connected equipment against transient overvoltages.
The Lovato SG2C3NA275 has a 3P+N configuration for surge protection in compatible three-phase systems with neutral.
The SG2C3NA275 has a rated discharge current In of 20 kA per pole using an 8/20 µs waveform.
The SG2C3NA275 has a maximum discharge current Imax of 40 kA for both the L-N and N-PE protection paths using an 8/20 µs waveform.
The SG2C3NA275 has a maximum continuous operating voltage Uc of 275 V AC and is intended for compatible 230/400 V AC systems.
Yes. The SG2C3NA275 uses plug-in protection cartridges that can be replaced for convenient servicing without replacing the complete SPD assembly.
The SG2C3NA275 is designed for DIN rail mounting and occupies 2 DIN modules, making it suitable for compact distribution boards and electrical control panels.
Lovato Electric surge protection devices provide dependable protection for industrial, commercial and building electrical systems, helping safeguard power distribution equipment, automation systems and sensitive electronics against potentially damaging transient overvoltages.
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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...