K9AE31000
14
Schneider Eletric
Design guide
Design guide
Selection guide
The selection guide below will, according to the prospective short-circuit current of
the installation, allow you to determine the type of circuit breaker needed to fully
protect the busbar trunking.
Example: for an installation with a prospective Isc of 55 kA, the circuit breaker
needed to protect a KTA12 A busbar trunking is a NW10L1 or NW12L1 (the rating
depends on the circuit's nominal current).
For a voltage of 380 / 415 V
Max. Isc current in kA rms KTA0800
31 kA
50 kA
70 kA
90 kA
150 kA
Circuit breakers
NS800N/H
NS630N
NS630H
NS800L
NS630L
NS1000N/H
NT08L1
NW08H1/H2
NT10L1
NW10H1/H2
Max. Isc current in kA rms KTA1000
42 kA
50 kA
60 kA
150 kA
Circuit breakers
NT1.H1
NS800N/H
NW10L1
NS1000L
NW1.N1
NS1000N/H
NW12L1
NT10L1
NS1200N/H
NT.H2
NW1.H1/H2
Max. Isc current in kA rms KTA1250
42 kA
50 kA
55 kA
150 kA
Circuit breakers
NT1.H1
NS1000N/H
NW10L1
NS1000L
NW1.N1
NS1200N/H
NW12L1
NT10L1
NS1600N/H
NT.H2
NW1.H1/H2
Max. Isc current in kA rms KTA1600
42 kA
50 kA
60 kA
90 kA
Circuit breakers
NT12H1
NS1200N
NS1200H
NW12L1
NT16H1
NS1600N
NS1600H
NW16L1
NW12N1
NT12H2
NW12H1/H2
NW20L1
NW16N1
NT16H2
NW16H1/H2
NW20N1
NW2.H1/H2
Max. Isc current in kA rms KTA2000
42 kA
50 kA
65 kA
72 kA
110 kA
Circuit breakers
NT16H1
NS1600N
NW16H1
NW16H2
NW16L1
NW16N1
NT16H2
NW2.H1
NW2.H2
NW20L1
NW20N1
NW25H3
Max. Isc current in kA rms KTA2500
42 kA
65 kA
80 kA
150 kA
Circuit breakers
NW20N1
NW2.H1
NW40bH1
NW16L1
NW32H1
NW2.H2
NW20L1
NW40H1
NW32H2
NW40.H2
NW..H3
Max. Isc current in kA rms KTA3200
65 kA
86 kA
150 kA
Circuit breakers
NW25H1
NW40bH1
NW20L1
NW32H1
NW2.H2
NW40H1
NW32H2
NW40.H2
NW..H3
Max. Isc current in kA rms KTA4000
65 kA
90 kA
Circuit breakers
NW32H1
NW40bH1
NW40H1
NW50H1
NW32H2
NW40.H2
NW50H2
NW32H3
NW40H3
Canalis KTA
Summary :
Isc current in kA rms KTA0800 31 kA 50 kA 70 kA 90 kA 150 kA Circuit breakers NS800N/H NS630N NS630H NS800L NS630L NS1000N/H NT08L1 NW08H1/H2 NT10L1 NW10H1/H2 Max. Isc current in kA rms KTA2000 42 kA 50 kA 65 kA 72 kA 110 kA Circuit breakers NT16H1 NS1600N NW16H1 NW16H2 NW16L1 NW16N1 NT16H2 NW2.H1 NW2.H2 NW20L1 NW20N1 NW25H3 Max.
Tags :
isc,breakers,rms,max,150,nw20l1,nw12l1,guide,nw20n1,nw32h2,nw10l1,nw16l1,ns1000nh