Surge protection cabinet for power system

LZA-/F 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 or faulty operation.

(option from standard IEC61643-1 and GB50343) Main features. ☆ 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 normal on and off ☆ Totally-enclosed metal shell good shielding effectiveness free maintenance Main technical data Type LZA-20C LZA-40B suffix /2F /3F /2F /3F Norminal working voltage Un V 220V 380V 220V 380V Max. continuous AC Voltage Uc V 385 385 Voltage protection level Up KV ＜1.8 ＜2.0 Norminal discharge current In (8/20μs) kA 20 40 Max.

Discharge current Imax (8/20μs) kA 40 80 Reserve protection breaker 40A/2P 40A/4P 63A/2P 63A/4P Protection principle 2P 3P+N 2P 3 P+ N Response time ns ＜25 Enclosure material Aluminum alloy Cross-sectional area ≥10mm 2 stranded/ flexible Starting current ≥400A Counting range 0-99 Leakage current 75% Uc 1mA ≤20μA Ordering description Type Remarks LZA-20C/2F single phase LZA-20C/3F three phase LZA-40B/2F single phase LZA-40B/3F three phase