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
• Suitable for AC 50/60Hz
• Suitable for TT, IT, TN-S, TN-C and TN-C-S power supply systems with rated voltage 230/480V and below
• Suitable for the protection of low-voltage power grids and all kinds of electrical equipment and control systems
• Suppressing transient overvoltages exceeding the withstand surge voltage of the equipment
• Releasing surge energy and various surge overvoltages
• Standards compliant GB18802.1, GB18802.12 IEC61643-1, IEC61643-21 UL1449 ed.2
| Product model (graphite products) | SUP6 | |||
| Number of poles | 1P.2P.1P+N.3P+N .4P | |||
| Continuous operational voltage Uc(V) | 220/690 | |||
| Nominal discharge current limp(10/350us)KA | 12.5 | 12.5 | 25 | 50 |
| Front circuit breaker | 125 | 125 | 160 | 160 |
| Protection degrees | IP20 | IP20 | IP20 | IP20 |
| Voltage protection level UP(KV) | <2.5 | <2.5 | <2.5 | <2.5 |
| Response time(ns) | <25 | <25 | <25 | <25 |
| Wring capacity (mm²) | 16-35 | 16-35 | 16-35 | 16-35 |
| Temperature range | -40℃ ~+85℃ | -40℃ ~+85℃ | -40℃ ~+85℃ | -40℃ ~+85℃ |
| Atitude (m) | 3000 | 3000 | 3000 | 3000 |
| Relative humidity | <95% | <95% | <95% | <95% |
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