For contactors in the TeSys ranges (K, D & G) Please apply the following:
No derating below 3000m altitude for voltage and current in the power poles of the contactors.
For example, a LC1D80 at 5000m :
- The maximum rated operational voltage is 1000V (IEC 947-4) and 690V (UL/CSA). At 5000m it becomes 1000V x 0.6 = 600V (IEC 947-4) and 690V x 0.6 = 414V (UL/CSA).
- The maximum rated operational AC3 current is 80A at 5000m becomes 80A x 0.86 = 68A.
Released for:Schneider Electric UK
For contactors in the TeSys ranges (K, D & G) Please apply the following:
No derating below 3000m altitude for voltage and current in the power poles of the contactors.
For example, a LC1D80 at 5000m :
- The maximum rated operational voltage is 1000V (IEC 947-4) and 690V (UL/CSA). At 5000m it becomes 1000V x 0.6 = 600V (IEC 947-4) and 690V x 0.6 = 414V (UL/CSA).
- The maximum rated operational AC3 current is 80A at 5000m becomes 80A x 0.86 = 68A.
Released for:Schneider Electric UK
