WatchfulEye Surge Protection for Power Supply Systems
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WTH-10/AC220

IEC 61643-1 - Class III and UL1449 Type 4 Location
Location of Use: fine surge protection at equipment area
Nominal operating voltage: 220V
Frequency: 50/60Hz
IEEE Category Rating: A
Max. Discharge Current (lmax): 10kA
WTH-10/AC220WTH-10/AC220 |
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WTH-20/D/R/1P-275

IEC 61643-1 - Class III and UL1449 Type 4 Location
Location of Use: branch sub-distribution boards
Plug-in module and separate base design enables convenient maintenance
Max. continuous operating voltage: 275VAC 50/60HzIEEE Category Rating: B & A
Max. Discharge Current (lmax): 20kA
WTH-20/D/R/1P-275WTH-20/D/R/1P-275 |
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WTH-40/C/R/1P-275

IEC 61643-1 - Class II and UL1449 Type 4 Location
Location of Use: branch sub-distribution boards
Plug-in module and separate base design enables convenient maintenance
Max. continuous operating voltage: 275VAC 50/60HzIEEE Category Rating: B & A
Max. Discharge Current (lmax): 40kA
WTH-40/C/R/1P-275WTH-40/C/R/1P-275 |
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WTH-40/C/R/1P-D48

IEC 61643-1 - Class II and UL1449 Type 4 Location
Location of Use: DC Load centres
Plug-in module and separate base design enables convenient maintenance
Max. continuous operating voltage: 57VDCMax. Discharge Current (lmax): 5kA
WTH-40/C/R/1P-D48WTH-40/C/R/1P-D48 |
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WTH-50/B+C/R/1P-275

IEC 61643-1 - Class I+II and UL1449 Type 4 Location
Location of Use: main sub-distribution boards, branch sub-distribution boards
One-piece compact design with minimised volume but maximised capability of Class I+II surge protection
Max. continuous operating voltage: 275VAC 50/60HzIEEE Category Rating: C, B & A
Max. Discharge Current (lmax): 50kA
WTH-50/B+C/R/1P-275WTH-50/B+C/R/1P-275 |
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WTH-65/B+C/R/1P-275

IEC 61643-1 - Class I+II and UL1449 Type 4 Location
Location of Use: main sub-distribution boards, branch sub-distribution boards
One-piece compact design with minimised volume but maximised capability of Class I+II surge protection
Max. continuous operating voltage: 275VAC 50/60HzIEEE Category Rating: C, B & A
Max. Discharge Current (lmax): 65kA
WTH-65/B+C/R/1P-275WTH-65/B+C/R/1P-275 |
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WTH-80/B+C/R/1P-275

IEC 61643-1 - Class I+II and UL1449 Type 4 Location
Location of Use: main sub-distribution boards, branch sub-distribution boards
Plug-in module and separate base design enables convenient maintenance
Max. continuous operating voltage: 275VAC 50/60HzIEEE Category Rating: C, B & A
Max. Discharge Current (lmax): 80kA
WTH-80/B+C/R/1P-275WTH-80/B+C/R/1P-275 |
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WTH-100/B+C/R/1P-275

IEC 61643-1 - Class I+II and UL1449 Type 4 Location
Location of Use: main sub-distribution boards, branch sub-distribution boards
Plug-in module and separate base design enables convenient maintenance
Max. continuous operating voltage: 275VAC 50/60HzIEEE Category Rating: C, B & A
Max. Discharge Current (lmax): 100kA
WTH-100/B+C/R/1P-275WTH-100/B+C/R/1P-275 |
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WTH-120/B/R/1P-385

IEC 61643-1 - Class I and UL1449 Type 4 Location
Location of Use: main sub-distribution boards
With three MOVs protection at the same time, the module can realise Class I surge protection; in the case that two of the indicators windows indicates red, it can still meet Class II surge protection requirements
Max. continuous operating voltage: 385VAC 50/60HzIEEE Category Rating: C & B
Max. Discharge Current (lmax): 120kA
WTH-120/B/R/1P-385WTH-120/B/R/1P-385 |
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WTH-165/B/R/1P-385

IEC 61643-1 - Class I and UL1449 Type 4 Location
Location of Use: main sub-distribution boards
With three MOVs protection at the same time, the module can realise Class I surge protection; in the case that two of the indicators windows indicates red, it can still meet Class II surge protection requirements
Max. continuous operating voltage: 385VAC 50/60HzIEEE Category Rating: C & B
Max. Discharge Current (lmax): 165kA
WTH-165/B/R/1P-385WTH-165/B/R/1P-385 |
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WTH-300/G+/R/1P-320

IEC 61643-1 - Class I and UL1449 Type 4 Location
Location of Use: main sub-distribution boards
Built-in 7-layer High Energy GDT: Safely applied to L-PE mode to realise Class I surge protection
Max. continuous operating voltage: 320VAC 50/60HzIEEE Category Rating: C & B
Max. Discharge Current (lmax): 200kA
WTH-300/G+/R/1P-320WTH-300/G+/R/1P-320 |
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WTH-500/G+/R/1P-320

IEC 61643-1 - Class I and UL1449 Type 4 Location
Location of Use: main sub-distribution boards
Built-in 7-layer High Energy GDT: Safely applied to L-PE mode to realise Class I surge protection
Max. continuous operating voltage: 320VAC 50/60HzIEEE Category Rating: C & B
Max. Discharge Current (lmax): 400kA
WTH-500/G+/R/1P-320WTH-500/G+/R/1P-320 |
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WTH-40/C/3P-PV1000

Surge Protection device for Photovoltaic System
In accordance with IEC 61643-1 - Class II and UL1449 Type 4 Location
Location of use: DC System, DCpv System, Photovoltaic Combiner Box, Photovoltaic Power Supply Box
Plug-in module and separate base design enables convenient maintenance
Max. Discharge Current (lmax): 40kA
WTH-40/C/3P-PV1000WTH-40/C/3P-PV1000 |
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