www.se.com53Simplified design guideDesign of a power distribution line in Canalis busbar trunkingCABDEF45T° ambient (°c)0.94Derating factor K159.22Iz (A) = In trunking * K1= permissible current*Circuit breakerEXAMPLEEXAMPLELINE 1LINE 1LINE 2LINE 3LINE 4LINE 2LINE 3LINE 45 Temperature derating - Calculation of iz: permissible current in trunking6 Derating according to installation method7 Overload protectionNo derating for Canalis KN placed flat or upright.Trunking protectionTrunking protectionTrunking protectionTrunking protectionTrunking protection Fuses CB* Fuses Fuses Fuses Fuses CB* CB* CB* CB*8 Verification of voltage dropK21.11Iz (A)59.22In protection53.8459.22In standardised of protective device5050 41520.755.326.1510.655%500.90.169Three-phase network voltage (V)XXXXX=====Single-phase loadsSingle-phase loadsSingle-phase loadsSingle-phase loadsSingle-phase loadsConcentrated loadsConcentrated loadsConcentrated loadsConcentrated loadsConcentrated loadsMax. voltage drop (V)Max. voltage drop %Length (m) of Canalis linePower factorVoltage drop (V/100m/A) Tb3Voltage drop (V)(a/100) x b x "In trunking"Voltage drop (V) x 0.866(a)Tb2(b)Voltage drop (V) x 2EXAMPLELINE 1LINE 2LINE 4LINE 39 Protection from short-circuitsRefer to the coordination tables page 48.Check.Check.Check.Check.Check.DEBU020EN
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