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Surge Protective Devices
LED Lighting | Photovoltaic (PV) Systems | Power Supply Systems
SignliteLED Surge Protective Devices (SPDs) deliver reliable protection for LED lighting, photovoltaic (PV), and industrial power systems.
Built with MOV + GDT hybrid technology and compliant with IEC 61643 standards, these SPDs safeguard sensitive electrical equipment from lightning strikes, transient overvoltages, and grid disturbances.
They ensure stable performance and long-term reliability for LED drivers, solar inverters, DC circuits, and AC power distribution panels in commercial and industrial environments.
Philips Surge protection devices
Surge 10kV Protector Class-II serial
Designation: Type 3
Classification: Class III
Protection mode: Diff. mode
Rated input voltage Un(L-N): 230VAC, 50/60Hz
Max. continuous operating voltage Uc (L-N): 305VAC, 50/60Hz
Supported power grids: TN, TT, IT
Rated discharge current In(L-N): 5kA
Max. voltage protection level at In Up (L-N): 15kV
Open-circuit voltage Uoc: 10kV
Backup fuse: 16A
Rated load current (max): 5A
Power consumption (max): 1W
Certifications: CE, CQC, UKCA, TÜV Rheinland
Lifetime: 100,000 hours
Surge Protector Class-I
Designation: Type 3
Classification: Class III
Protection mode: Diff. mode & Comm. mode
Rated input voltage Un: 230VAC, 50/60Hz
Max. continuous operating voltage Uc: 305VAC, 50/60Hz
Supported power grids: TN, TT, IT
Rated discharge current In: 5kA
Max. voltage protection level at In Up: L-N 1.5kV, L(N)-PE 2kV
Open-circuit voltage Uoc: 10kV
Backup fuse: 16A
Rated load current (max): 4A
Power consumption (max): 0.01W
Certifications: CE, CQC, UKCA, TÜV Rheinland
Lifetime: 100,000 hours
Surge Protector Class-II
Designation: Type 3
Classification: Class III
Protection mode: Diff. mode
Rated input voltage Un: 230VAC, 50/60Hz
Max. continuous operating voltage Uc: 32555VAC, 50/60Hz
Supported power grids: TN, TT, IT
Rated discharge current In(L-N): 5kA
Max. voltage protection level at In Up(L-N): 1.5kV
Open-circuit voltage Uoc: 10kV
Backup fuse: 20A
Rated load current (max): 4A
Power consumption (max): 0.001W
Certifications: CE, CQC, UKCA, TÜV Rheinland
Lifetime: 100,000 hours
Surge Protective Devices for LED Lighting
SPD05-AC275i-D ClassII+III
Designation: Type2+3
Classification: Class III
Protection mode: L-N , N-PE , L-PE
Rated input voltage Un(L-N): 230VAC, 50/60Hz
Max. continuous operating voltage Uc (L-N): 275VAC, 50/60Hz
Max discharge current (8/20μs) Imax:15 kA
Nominal discharge current (8/20μs) In:5 kA
Voltage protective level Up: L-N ≤1.3 kV, N-PE ≤0.5 kV, L-PE ≤1.5 kV
Open circuit voltage Uoc: 10 kV
Backup fuse: 20A
Housing material: UL94V-0
Degree of protection: IP20
SPD05-AC275i-D ClassII+III
Designation: Type2+3
Classification: Class III
Protection mode: L-N , N-PE ,L-PE
Rated input voltage Un(L-N): 230VAC, 50/60Hz
Max. continuous operating voltage Uc (L-N): 275VAC, 50/60Hz
Max discharge current (8/20μs) Imax:6 kA
Nominal discharge current (8/20μs) In:3 kA
Voltage protective level Up: L-N ≤1.3 kV, L(N)-PE ≤1.5 kV
Open circuit voltage Uoc: 6 kV
Backup fuse: 16A
Housing material: UL94V-0
Degree of protection: IP20
SPD03-DC320-P/G Type2+3
Designation: Type2+3
Classification: Class III
Protection mode: L-N , N-PE ,L-PE
Rated input voltage Un(L-N): 230VAC, 50/60Hz
Max. continuous operating voltage Uc (L-N): 320VAC, 50/60Hz
Max discharge current (8/20μs) Imax:6 kA
Nominal discharge current (8/20μs) In:3 kA
Voltage protective level Up: L-N ≤1.5 kV, N-PE ≤0.6 kV, L-PE ≤1.5 kV
Open circuit voltage Uoc: 6 kV
Backup fuse: 16A
Housing material: UL94V-0
Degree of protection: IP66
Surge Protective Devices for Photovoltaic (PV) Systems
SPD20C/3-1500 PV S Class II
Designation: Type2
Classification: Class II
Protection mode: (+/-)–>PE , (-/+)–>PE , (+/-)–>(-/+)
Nominal Voltage Un: 1500 Vdc
Max. continuous operating voltage Uc (L-N): 180 Vdc
Short-circuit current rating Iscpv: 100 A
Continuous operating current Icpv: <20 µA
Rated load current: 80 A
Max discharge current (8/20μs) Imax:40 kA
Nominal discharge current (8/20μs) In:20 kA
Voltage protective level Up: ≤5.0 kV
Isolation resistance: ＞1000 MΩ
Housing material: UL94V-0
Degree of protection: IP20
SPD20C/1-48PVS Class II
Designation: Type2
Classification: Class II
Protection mode: (+/-)-PE
Nominal Voltage Un: 48 Vdc
Max. continuous operating voltage Uc (L-N): 75 Vdc
Continuous operating current Icpv: <20 µA
Standby power consumption Pc: ≤25 mVA
Max discharge current (8/20μs) Imax:40 kA
Nominal discharge current (8/20μs) In:20 kA
Voltage protective level Up: ≤0.6 kV
Isolation resistance: ＞1000 MΩ
Housing material: UL94V-0
Degree of protection: IP20
SPD03-DC320-P/G Type2+3
Designation: Type2+3
Classification: Class III
Protection mode: L-N , N-PE ,L-PE
Rated input voltage Un(L-N): 230VAC, 50/60Hz
Max. continuous operating voltage Uc (L-N): 320VAC, 50/60Hz
Max discharge current (8/20μs) Imax:6 kA
Nominal discharge current (8/20μs) In:3 kA
Voltage protective level Up: L-N ≤1.5 kV, N-PE ≤0.6 kV, L-PE ≤1.5 kV
Open circuit voltage Uoc: 6 kV
Backup fuse: 16A
Housing material: UL94V-0
Degree of protection: IP66
Surge Protective Devices for Power Supply Systems
FDS20C/3-275 Class II
Designation: Type2
Classification: Class II
Protection mode: L1 , L2 , L3-PE
Nominal Voltage Un: 230/400 Vac/50(60)Hz
Max. continuous operating voltage Uc (L-N): 275 Vac/50(60)Hz
Short-circuit withstand capability: 20 kA
Continuous operating current Ic: <20 µA
Standby power consumption Pc: ≤25 mVA
Max discharge current (8/20μs) Imax: 40 kA
Nominal discharge current (8/20μs) In: 20 kA
Voltage protective level Up: ≤1.3 kV
Isolation resistance: ＞1000 MΩ
Housing material: UL94V-0
Degree of protection: IP20
FDS20C/4-275 Class II
Designation: Type2
Classification: Class II
Protection mode: L→PE , N→PE
Nominal Voltage Un: 230 Vac/50(60)Hz
Max. continuous operating voltage Uc (L-N): 275 Vac/50(60)Hz
Short-circuit withstand capability: 20 kA
Continuous operating current Ic: <20 µA
Standby power consumption Pc: ≤25 mVA
Max discharge current (8/20μs) Imax: 40 kA
Nominal discharge current (8/20μs) In: 20 kA
Voltage protective level Up: ≤1.3 kV
Isolation resistance: ＞1000 MΩ
Housing material: UL94V-0
Degree of protection: IP20
FDS20C/4-275 Class II
Designation: Type2
Classification: Class II
Protection mode: L→PE , N→PE
Nominal Voltage Un: 230 Vac/50(60)Hz
Max. continuous operating voltage Uc (L-N): 275 Vac/50(60)Hz
Short-circuit withstand capability: 20 kA
Continuous operating current Ic: <20 µA
Standby power consumption Pc: ≤25 mVA
Max discharge current (8/20μs) Imax: 40 kA
Nominal discharge current (8/20μs) In: 20 kA
Voltage protective level Up: ≤1.3 kV
Isolation resistance: ＞1000 MΩ
Housing material: UL94V-0
Degree of protection: IP20
How Surge Protection Devices (SPDs) Work
Features:
- Compact and easy to install
- MOV + GDT hybrid protection
- AC/DC compatible (Type 2 + 3)
- Surge capacity up to 15 kA
- LED status indicator
- IEC 61643 / UL 1449 certified
Benefits:
- Protects LED drivers from surges
- Extends fixture lifespan
- Reduces maintenance costs
- Reliable for indoor & outdoor lighting
A Surge Protection Device (SPD) serves as a safety barrier, protecting electrical and electronic systems from transient overvoltages caused by lightning strikes, switching surges, or unstable power grids.
When a voltage spike occurs, the SPD instantly redirects excess current to the ground via MOV (Metal Oxide Varistor), GDT (Gas Discharge Tube), or TVS diode components—preventing damage to sensitive circuits and critical equipment.
Application Scenarios:
- LED Lighting Systems: Protects LED drivers, luminaires, and outdoor façade lighting from surge-induced failure.
- Photovoltaic (PV) Systems: Safeguards DC circuits and solar inverters, ensuring stable power generation and prolonging equipment life.
- Industrial Power Networks: Maintains voltage stability across AC power distribution panels and control systems, minimizing downtime.
By combining Type 2 and Type 3 surge protection and employing MOV + GDT hybrid SPD technology, SignliteLED SPDs deliver:
- Fast response to voltage spikes
- Low residual voltage for safe operation
- Long-term reliability for lighting, solar, and industrial infrastructure
Learn more: For detailed guidelines on SPD selection and application, see the Electrical Engineering Portal
Project Solutions for Surge Protection Systems
Power Supply System Surge Protection (Commercial & Residential Buildings)
Protect your power distribution networks with our industrial-grade surge arresters, designed for AC systems in commercial buildings, residential properties, and infrastructure facilities. Our modules conform to IEC 61643-11 and include Class I/II/III options. Whether mounted on DIN rails or integrated into main switchboards, they help control costs, improve system reliability, and guard sensitive equipment from transient over-voltages.
Photovoltaic (PV) System Surge Protection
Our surge protective devices (SPDs) provide specialized protection for solar-powered installations — from DC string inverters and combiner boxes to rooftop modules and on-grid systems. Designed for voltages up to 1500 V DC, these units feature low residual voltage, rapid response (≤ 25 ns), and high surge capacity, ensuring the longevity of your PV assets under lightning strikes and grid disturbances.
SPD Manufacturing Process & Quality Control
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