The KPD24-2020 is Class III(Type 3) and 2 poles DC power Surge Protective Device (SPD) designed for low-voltage power system ligtning current&surge protection,capacity up to 20 kA (8/20). This DC power surge protector feature modular design, achieving overcurrent protection, instantaneous response, and timely tripping,circuit for use in 24 VDC systems.This effectively prevents fires and protects systems or equipment from permanent damage or momentary interruption caused by surges, enhancing the safety and stability of power distribution systems.
24 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
Telecommunications
Photovoltaic (PV) systems
Electronics
- 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 | KPD24-2020 |
Number of Positions | 2-pos. |
SPD Type per UL 1449 3rd Edition | Type 3 |
SPD Class per IEC 61643-11 | Class III |
Nominal Operating AC Voltage[Un] | 24 VDC (50/60 Hz) |
Max. Continuous Operating AC Voltage[Uc] | 36 VDC (50/60 Hz) |
Response time[tA] | ≤ 25 ns |
Nominal Discharge Current [In] | 10 kA (8/20 μs） |
Maximum Discharge Current [lmax] | 20 kA (8/20 μs） |
Voltage Protection Level [Up] | 150 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 × 36 × 65 mm |
Weight | 175 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 |
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