Surge Protection Devices
For protection of equipment against Lightning and Switching surges
ㆍStandard: IEC 61643-11 / EN 61643-11
ㆍ Type 1, Type 2 and Photovoltaic surge protection
ㆍWith Remote signaling contact
ㆍ Integrated SPD health indicator
Type 1: Lightning Surge Arresters
• Maximum continuous operating voltage Uc: 350V
| Reference No. | Rated voltage |
Pole | Module width | (10/350μs) Total Iimp | (8/20μs) Imax | Remote status | Unit Price (THB) |
| 5SD74121RC | 240V AC | 1P+N | 4 | 50kA | 50kA | Yes | – |
| 5SD74141RC | 240/415V AC | 3P+N | 8 | 100kA | 50kA | Yes |
– |
Type 2: Surge Arresters
| Reference No. | Rated voltage |
Pole | Module width | Uc | (8/20μs) Imax | Remote status | Unit Price (THB) |
| 5SD74610RC | 240V AC | 1P | 1 | 335V AC | 20kA | No | – |
| 5SD74640RC | 240/415V AC | 3P+N | 4 | 335V AC | 40kA | No | – |
Surge Arresters for Photovoltaic Application
On the DC side, over voltage protection is required for the inverters which can be ensured by using 5SD74836RC.
On the AC side, the over voltage protection can be ensured using surge arresters Type 2 (5SD7461-0RC/5SD7464-0RC)
| Reference No. | Rated voltage |
Pole | Module width | Ucpv | (8/20μs) Imax | Remote status | Unit Price (THB) |
| 5SD74836RC | 1170V DC | L+ and L- |
3 | 1170V DC | 40kA | No | – |
