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    BY1-D surge protection deviceBY1-D surge protection deviceBY1-D surge protection device
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BY1-D surge protection device

Desctription Symbol Unit Parameters & Models
Rated operational voltage Uc V 275 320 385 440
Nominal discharge current In kA 5 5 5 5
Maximum discharge current Imax kA 10 10 10 10
Voltage protection level Up Kv 0.8 1.0 1.2 1.5
Protection degree IP 20 20 20 20
Response time ns 25 25 25 25
Fuse A 10 10 10 10
Material PA6 PA6 PA6 PA6
Fire retardent (comply with) UL94V-0 UL94V-1 UL94V-2 UL94V-3
Standards IEC61643-1:1998
Single Phase Model L/N BY1-D/1-275 BY1-D/1-320 BY1-D/1-385 BY1-D/1-440
L,N BY1-D/2-275 BY1-D/2-320 BY1-D/2-385 BY1-D/2-440
L/N+NPE BY1-D/1+1-275 BY1-D/1+1-320 BY1-D/1+1-385 BY1-D/1+1-440
Three phase Model L1,L2,L3 BY1-D/3-275 BY1-D/3-320 BY1-D/3-385 BY1-D/3-440
L1,L2,L3,N BY1-D/4-275 BY1-D/4-320 BY1-D/4-385 BY1-D/4-440
L1,L2,L3,N+NPE BY1-D/3+1-275 BY1-D/3+1-320 BY1-D/3+1-385 BY1-D/3+1-440
Local indication: Green indicates normal state and red indicates failure.
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