SG2C4PA275 Lovato SURGE PROTECTION DEVICE TYPE 2 4P
Lovato SG2C4PA275 is a compact 4-pole Type 2 surge protection device for 230/400 V AC TT and TN-S systems, featuring 20 kA rated discharge current per pole, 40 kA maximum discharge current and replaceable plug-in cartridges.
SKU:SG2C4PA275
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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.
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.
Technical Specifications
HS Code
85365080
Manufacturer
Lovato Electric
Series
SG2C
Model
SG2C4PA275
Product type
Surge protection device (SPD)
Application
AC power lines
SPD type / class
Type 2
Number of poles
4P
Rated system voltage
230/400 V AC
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)
40 kA
Voltage protection level Up
<1.5 kV
Open-circuit voltage Uoc (1.2/50 µs)
6 kV
Short-circuit current rating
25 kA
Residual current IPE
5 µA
Thermal protection
Yes
Status indication
Frontal operating / end-of-life indication
Remote relay output
No
Protection rating
IP20
Power distribution systems
TT, TN-S
Number of DIN modules
2
Mounting type
DIN rail
Operating temperature
−40 to +85 °C
Maximum installation altitude
2000 m
Weight
496 g
Compliance
IEC/EN/BS 61643-11
Frequently Asked Questions
What is the Lovato SG2C4PA275 used for?
The SG2C4PA275 protects low-voltage three-phase AC electrical installations and connected equipment against transient overvoltages caused by indirect lightning effects and switching events.
What type of surge protection does the SG2C4PA275 provide?
The SG2C4PA275 is a Type 2 SPD designed for secondary surge protection in low-voltage AC distribution systems.
What are the discharge current ratings of the SG2C4PA275?
The device has a rated discharge current In of 20 kA per pole and a maximum discharge current Imax of 40 kA, based on the 8/20 µs waveform.
Which electrical systems are suitable for the SG2C4PA275?
The 4-pole SG2C4PA275 is designed for 230/400 V AC installations and is suitable for TT and TN-S distribution systems.
Does the SG2C4PA275 have a remote status contact?
No. The SG2C4PA275 provides frontal operating and end-of-life indication without a remote relay contact; the SG2C4PA275R variant is available where remote status signalling is required.
Trusted Surge Protection from Lovato Electric
Lovato Electric SG2C surge protection devices provide dependable protection for industrial, commercial and building electrical systems, combining high surge-current capability, compact DIN rail installation and replaceable protection cartridges for efficient maintenance.
HS Code
85365080
Manufacturer
Lovato Electric
Series
SG2C
Model
SG2C4PA275
Product type
Surge protection device (SPD)
Application
AC power lines
SPD type / class
Type 2
Number of poles
4P
Rated system voltage
230/400 V AC
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)
40 kA
Voltage protection level Up
<1.5 kV
Open-circuit voltage Uoc (1.2/50 µs)
6 kV
Short-circuit current rating
25 kA
Residual current IPE
5 µA
Thermal protection
Yes
Status indication
Frontal operating / end-of-life indication
Remote relay output
No
Protection rating
IP20
Power distribution systems
TT, TN-S
Number of DIN modules
2
Mounting type
DIN rail
Operating temperature
−40 to +85 °C
Maximum installation altitude
2000 m
Weight
496 g
Compliance
IEC/EN/BS 61643-11
No documents available for this product.
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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...
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...