The KPD1500-403Y is Class III(Type 3) and 3 poles DC power Surge Protective Device (SPD) designed to safeguard photovoltaic (PV) and renewable energy systems from transient overvoltages caused by lightning strikes and switching surges. Engineered for use in high-voltage solar power plants, this SPD provides reliable, long-term protection for DC combiner boxes, inverters, and control circuits. Featuring a high discharge capacity (Imax up to 40kA per pole), thermal disconnection, and visual status indication, this DIN-rail mountable SPD delivers robust performance in harsh outdoor environments.
Ideal for large-scale ground-mounted solar farms, rooftop installations, and off-grid power systems, it meets international standards including IEC 61643-11 and UL 1449, ensuring safety, reliability, and compliance.
1500 VDC
Modular design
35 mm DIN rail mounting
Temperature control cut-out technology
Reliable thermo disconnect technology
Overcurrent protection
Instantaneous action and timely trip
High discharge capacity
Visual status indicator
Remote signal contacts
Space-saving and cost-effective
Suitable for solar and PV systems
Photovoltaic (PV) systems
Telecommunications
Charging station
- Installation must be carried out under power-off conditions. Secure the surge protector and circuit breaker to the rail respectively, and connect L, N, PE, etc. as shown in the diagram.
- Regularly check the working status of the surge protector. Replace the product immediately if it fails or is damaged.
| Electrical | |
Model | KPD1500-403Y |
Number of Positions | 3-pos. |
SPD Type per UL 1449 3rd Edition | Type 2 |
SPD Class per IEC 61643-11 | Class III |
Nominal Operating AC Voltage[Un] | 1500 VDC (50/60 Hz) |
Max. Continuous Operating AC Voltage[Uc] | 1800 VDC (50/60 Hz) |
Response time[tA] | ≤ 25 ns |
Nominal Discharge Current [In] | 20 kA (8/20 μs） |
Maximum Discharge Current [lmax] | 40 kA (8/20 μs） |
Voltage Protection Level [Up] | 3800 V |
Degradation Failure Iindication | Red - failure,Green - Normal |
Remote Signal Contact | Optional |
| Mechanical | |
Connection Mode | Parallel |
Wiring diameter | 4-25 mm² |
Mounting Method | 35 mm DIN-rail |
Housing Material | Thermoplastic,Extinguishing Degree UL 94 V0 |
Environmental Ingress Protection Rating | IP20 |
Enclosure Color | Black |
Operating Temperature (℃) | -40 ℃ to +80 ℃ |
Dimensions (L×W×H) | 90 × 54 × 65 mm |
Weight | 260 g |
| Standards Compliance&Certifications | |
Standards | UL 1449 3rd Edition: 2011, IEC 61643-11: 2011, EN 61643-11:2012, IEEE C62.11: 2005, IEEE C62.41: 2002, IEEE C62.45: 2002, NEMA LS-1 |
| Certifications | CE |
English 
