AIR CIRCUIT BREAKERS - Electrical and Electronics Division

Conformance to IS 13947 (Part 3) and IEC:60947-3
Type Designation �N200 �N250
No. of poles 3+Neutral 3+Neutral
Neutral Isolable Isolable
Service temperature °C -20 to 50 -20 to 50
Rated operational voltage (Ue) V 415 415
Rated insulation voltage (Ui) V 690 690
Rated impulse withstand voltage(Uimp) kV 88
Rated frequency Hz 50-60 50-60
Conventional Enclosed thermal current at 40°C A 200 250
Rated operational current Ie A
AC 20A utilization category 200 250
AC-21A utilization category 200 250
AC-22A utilization category 200 250
AC-23A utilization category 200 250
DC rating at 220V DC 200 250
No.of poles in series,utilization category
TECHNICAL DATA
SWITCH DISCONNECTOR �USE �OR BS TYPE �USES
at rated current 2,DC23A 2,DC23A
Rated making capacity (436V, cosØ-0.35) A 2000 2500
Rated breaking capacity (436V, cosØ-0.35) A 1600 2000
Rated fused short circuit current kA 80 80
with L&T fuses rating,A /Type Size 200,HQ,B2 250,HQ,B3
Capacitor duty - 415 V 50-60Hz kVAR 92 115
Mechanical life (operating cycles) 10000 10000
Terminal capacity (main) mm 2 240 400
Terminal capacity (neutral) mm 2 120 120
Terminal screw mm M10X30 M10X30
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