LZA-/FS Series
Application range
These series are applied to equipotential bonding of the low voltage main or distribution boxes in the building, providing protection against the overvoltage arising fromthe lightning strike to power supply system or faulty operation.(option from IEC61643-1 and Gb50343 standard)
Main structure and work principle.
☆ Convenient wiring standard connection components
☆ Build-in temperature control and circuit breaking technology, high security performance.
☆ Green light in notice window indicates normal, red indicates broken, replacement notice, which are clear and easy distinguished.
☆ Function of lightning count capable of storage and display of lightning frequency
☆ Display status of ormal on and normal off.
☆ Totally-enclosed metal shell good shielding effectiveness free maintenance
Main technical data
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Type
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LZA-20C/2FS(3FS)
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LZA-40B/2FS(3FS)
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Norminal working voltage Un V
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220V
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380V
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220V
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380V
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Max. continuous AC Voltage Uc V
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385
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385
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Voltage protection level Up KV
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＜1.8
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＜2.0
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Norminal discharge current In (8/20μs) kA
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20
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40
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Max. Discharge current Imax (8/20μs) kA
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40
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80
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Reserve protection breaker
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40A/2P
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40A/4P
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63A/2P
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63A/4P
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Protection principle
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2P
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3P+N
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2P
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3 P+ N
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Response time ns
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＜25
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Enclosure material
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Aluminum alloy
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Cross-sectional area
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≥10mm 2 stranded/ flexible
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Starting current
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≥400A
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Counting range
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0-99
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Leakage current 75% Uc 1mA
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≤20μA
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Ordering description
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Type
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Remarks
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LZA-20C/2F
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single phase
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LZA-20C/3F
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three phase
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LZA-40B/2F
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single phase
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LZA-40B/3F
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three phase
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