The Citel DS240S-280DC is a Type 2 Surge Protective Device (SPD) specifically designed for DC and photovoltaic (PV) networks with a nominal voltage of 280VDC. Engineered to provide reliable protection against transient overvoltages, this SPD ensures the longevity and safety of critical DC/PV systems. Its advanced design and robust construction make it an ideal choice for a variety of applications, from residential solar installations to large-scale commercial photovoltaic arrays.
Features:
- Surge Protection: Effective defence against transient overvoltages in DC and PV networks.
- Nominal Discharge Current (In): 20kA (8/20µs) for strong performance during surge events.
- Maximum Discharge Current (Imax): 40kA (8/20µs) for handling high surge capacities.
- Voltage Protection Level (Up): ≤ 1.4kV, ensuring minimal residual voltage to protect connected equipment.
- Response Time: < 25ns, providing rapid action to mitigate voltage spikes.
- Operating Temperature Range: -40°C to +85°C, suitable for various climatic conditions.
- Enclosure Material: Thermoplastic, UL94-V0 flame retardant for enhanced safety.
- Connection Type: Pluggable module for easy installation, maintenance, and replacement.
- Visual Fault Indicator: Clear status indication for straightforward monitoring and maintenance.
- Standards Compliance: Meets IEC 61643-31 and UL 1449 4th edition standards, ensuring high-quality and reliable performance.
These features combine to make the Citel DS240S-280DC SPD a reliable and efficient solution for protecting photovoltaic systems and other DC applications from damaging transient overvoltages.
SPD Type (following IEC tests)
2
Nominal DC voltage (Un-dc)
280V DC
Nominal PV voltage (Uocstc)
280V DC
Max. AC operating voltage (L-N Uc)
275V AC
Max. PV operating voltage (Ucpv)
350V DC
Max. DC operating voltage (Uc)
350V DC
Max. load current (IL)
20 A
Nominal discharge current (15 x 8/20 µs impulses) (In)
20 kA
Max. discharge current (max. withstand @ 8/20 µs by pole) (Imax)
40 kA
Total Maximum discharge current (max. total withstand @ 8/20 µs ) (Imax Total)
80 kA