AIR CIRCUIT BREAKERS - Electrical and Electronics Division

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Conformance to IS 13947 (Part 3) and IEC:60947-3
Type Designation �N200 �N250 �N315
No. of poles 3+Neutral 3+Neutral 3+Neutral
Neutral Isolable Isolable Isolable
Service temperature °C -20 to 50 -20 to 50 -20 to 50
Rated operational voltage (Ue) V 415 415 415
Rated insulation voltage (Ui) V 690 690 690
Rated impulse withstand voltage(Uimp) kV 888
Rated frequency Hz 50-60 50-60 50-60
Conventional Enclosed thermal current at 40°C A 200 250 315
Rated operational current Ie
AC 20A utilization category 200 250 315
AC-21A utilization category 200 250 315
AC-22A utilization category 200 250 315
AC-23A utilization category 200 250 315
DC rating at 220V DC
TECHNICAL DATA
SWITCH DISCONNECTOR
No.of poles in series,utilization category
at rated current 2,DC23A 2,DC23A 2,DC22A
Rated making capacity (436V, cosØ-0.35) A 2000 2500 3150
Rated breaking capacity (436V, cosØ-0.35) A 1600 2000 2520
Capacitor duty - 415 V 50-60Hz kVAR 92 115 145
Mechanical life (operating cycles) 10000 10000 10000
Terminal capacity (main) mm 2 240 400 400
Terminal capacity (neutral) mm 2 120 120 120
Terminal screw mm M10X30 M10X30 M10x30
Short circuit withstand current kA
(duration 1 secs) 6 10 14
Rated fused short circuit current kA 100 100 100
with L&T fuses rating,A /Type Size 200/HN0 250/HN1 315/HN1