What is a Surge Protective Device (SPD)?
A Surge Protective Device (SPD) is an essential electrical component designed to protect electrical equipment from damage caused by sudden voltage spikes, known as surges. These surges can result from
• Short circuit protection, overload protection
• High breaking capacity, up to 8kA
• No positive and negative poles, can be reversed, easy to connect
• Rated working current to 125A
• Opening distance>9mm, quickly cut off the arc
• Labyrinth arc interrupter
• U-shaped magnetic blowing structure, improve the ability of disaster arc
• 7 rivets ensure wiring reliability
• Busbar design, reliable and beautiful wiring
• Unique shape design
• DC products with complete accessories, photovoltaic and energy storage systems
| SL7N-125D | |
| Pole | 1P, 2P, 3P ,4P |
| Rated current In(A) | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A,125A; |
| Rated voltage Ue(M) | 1P(DC440V, DC600V), 2P(DC800V, DC1000V), 3P(DC1200V, DC1500V);:4P(DC1500V); |
| Different currents In the same current shell frame | 6A、10A、 16A、 20A、25A、 32A、 40A、50A、 63A |
| Rated ultimate short circuit breaking capacity(Icu) | 5kA/1500V |
| Running breaking capacity(lcs) | 5kA/1500V |
| Mechanical life | 10000 |
| Electrical life | 2000Times |
| Certificate |  |
| Rated impulse withstand voltage(Uimp) | 8kV |
| Overoltage category | Ⅲ |
| Class of pollution | 3 |
| Ingress protection | IP40; terminal IP20 |
| Resistance to heat and humidity | Class 2 |
| Relative humidity | ≤95% |
| Installation | din |
| Relative humidity | +50℃ not more than 95% |
| Wiring polarity requirements | NO |
| Working temperature | -40°C -+75°C |
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