AIR CIRCUIT BREAKERS - Electrical and Electronics Division

TECHNICAL DATA - DG
Type Designation DG 125 DG 200 DG 250 DG 400
Rated Uninterrupted current
at 40 o C. - Ith (AC/DC) A 125 200 250 400
Rated impulse withstand voltage - Uimp kV 8 8 8 8
Rated operational voltage - Ue V AC 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 ultimate S.C. breaking capacity - Icu
at 415V ac kA 10 16 25 25
Rated Service S.C. breaking capacity - Ics
at 415V ac kA 75% 75% 75% 75%
Utilisation category A A A A
Mechanical life
Electrical life
Release Type Thermal-Magnetic Thermal-Magnetic Thermal-Magnetic Thermal-Magnetic
Overload release setting 80-100% 80-100% 80-100% 80-100%
Short Circuit release setting (+/- 20%) 4*In 4*In 4*In 4*In
Weight kg 1.8 2.4 5 5
Terminal capacity Cables mm 2 70 150 300 300
Accessories
As per standard IS 13947-2 / IEC 60947-2
Links mm 22 30 40 40
Auxiliary contacts (1NO+1NC) (1NO+1NC) (2NO+2NC) (2NO+2NC)
Shunt release y y y y
Under voltage release y y y y
Trip alarm contacts y y y y
Earth fault module y y y y
Rotary operating mechanism y y y y
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