AIR CIRCUIT BREAKERS - Electrical and Electronics Division

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TECHNICAL DATA - DS
Type Designation DS 100 DS 125 DS 160
Rated Uninterrupted current
at 40 o C. - Ith (AC/DC) A 100 125 160
Rated impulse withstand voltage - Uimp kV 8 8 8
Rated operational voltage - Ue V AC 415 415 415
V DC 250 250 250
�requency Hz 50/60 50/60 50/60
Rated insulation voltage - Ui V 690 690 690
Operating Temperature °C -5 to +55 -5 to +55 -5 to +55
Overvoltage category / pollution degree III/3 III/3 III/3
Rated Short-circuit making capacity - Icm kA 17 17 32
Rated ultimate S.C. breaking capacity - Icu
at 415V ac kA 10 10 16
Rated Service S.C. breaking capacity - Ics
at 415V ac kA 50% 50% 50%
Utilisation category A A A
Mechanical life
Electrical life
Release Type Thermal-Magnetic Thermal-Magnetic Thermal-Magnetic
Overload release setting �ixed �ixed �ixed
Short Circuit release setting (+/- 20%) 9*In 9*In 8*In
Weight kg 1.7 1.7 1.7
Terminal capacity Cables mm 2 50 70 95
Accessories
As per standard IS 13947-2 / IEC 60947-2
Links mm 16 22 22
Auxiliary contacts (1NO+1NC) (1NO+1NC) (1NO+1NC)
Shunt release y y y
Under voltage release y y y
Trip alarm contacts y y y
Earth fault module y y y
Rotary operating mechanism y y y