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Product Details
Desctription Symbol Unit Parameters & Models
Rated operational voltage Uc V 275 320 385 440
Nominal discharge current In kA 20 20 20 20
Maximum discharge current Imax kA 40 40 40 40
Voltage protection level Up Kv 1.2 1.5 1.8 2
Protection degree IP 20 20 20 20
Response time ns 25 25 25 25
Fuse A 32 32 32 32
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 BY20-40/1-275 BY20-40/1-320 BY20-40/1-385 BY20-40/1-440
L,N BY20-40/2-275 BY20-40/2-320 BY20-40/2-385 BY20-40/2-440
L/N+NPE BY20-40/1+1-275 BY20-40/1+1-320 BY20-40/1+1-385 BY20-40/1+1-440
Three phase Model L1,L2,L3 BY20-40/3-275 BY20-40/3-320 BY20-40/3-385 BY20-40/3-440
L1,L2,L3,N BY20-40/4-275 BY20-40/4-320 BY20-40/4-385 BY20-40/4-440
L1,L2,L3,N+NPE BY20-40/3+1-275 BY20-40/3+1-320 BY20-40/3+1-385 BY20-40/3+1-440
Local indication: Green indicates normal state and red indicates failure.

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