AIR CIRCUIT BREAKERS - Electrical and Electronics Division

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TECHNICAL DATA - DH
Type Designation DH 100 DH 125 DH 160 DH 200
Rated Uninterrupted current
at 40o C. - Ith (AC/DC) A 100 125 160 200
Rated impulse withstand voltage - Uimp kV 8 8 8 8
Rated operational voltage - Ue V 415 415 415 415
V DC 250 250 250 250
�requency Hz 50/60 50/60 50/60 50/60
Rated insulation voltage - Ui V 690 690 690 690
Operating Temperature °C -5 to +55 -5 to +55 -5 to +55 -5 to +55
Overvoltage category / pollution degree III/3 III/3 III/3 III/3
Rated Short-circuit making capacity - Icm kA 52.5 73.5 73.5 73.5
Rated ultimate S.C. breaking capacity - Icu
at 660V ac kA 5 7 7 7
at 550V ac kA 12 18 18 18
at 500V ac kA 18 25 25 25
at 415V ac kA 25 35 35 35
at 380V ac kA 25 35 35 35
at 240V ac kA 50 60 60 60
Rated Service S.C. breaking capacity - Ics
at 415V ac kA 100% 75% 75% 50%
DC Breaking capacity at 250 V, L/R