1. Surge Reduction Filter 2. LDY-40B 3. Uc: 275V, Up: <2.0kV 4. In: 40kA, Imax: 80kA 5. Leakage current 75%Uc 1mA: <20mA

Surge Reduction Filter

Application range

LDY-40B series are applied to equipotential bonding of the main low voltage distribution boxes in the building, providing overvoltage protection arising from the class 2 lightning strike to power supply system or misoperation. (Option from standard IEC61643- 1 and GB50343)

 

Main Feature:

Plug-in type design, live-wire replacement, easy maintenance;Build-in temperature control circuit breaker, high security performance;Green light in notice window indicates normal; red indicates broken, replacement notice, which is clear and easy distinguished;Optional telesignalling monitoring interface, realizable remote monitoring;Function of lightning protection backup, half of protection ability is available while either red light on;Assembled 1P, 1P+N, 2P, 3P, 3P+N, 4P etc modes, applied to various electric network systems.

Main technical data

Type	LDY-40B			LDY-40B/NPE
Max. continuous operating voltage Uc V	275	385	420	255
Part No.	081402	081403	081404	081400
Voltage protection level Up kV	<2.0	<2.2	<2.5	<1.2
Nominal discharge current In (8/20μs) kA	40			40
Max. discharge current Imax (8/20μs) kA	80			80
Leakage current 75%Uc 1mA	≤ 20 μA			--
Response time tA	< 25 ns			< 100 ns
Protection modes	1P, 1P+N, 2P, 3P, 3P+N,4P
Housing material	Enhanced flame retardant nylon (UL 94V-0)
Max. backup fuse/air-break switch	125A gL /63A
Cross-section	≥ 16 mm2 stranded/flexible conductor

Surge Reduction Filter