North-West

Gnext MCBs

'B' Type MCBs

These are suitable for installations having resistive load like Heaters, Ovens, GLS Lamps etc. The magnetic trip system operate between 3In to 5In

'C' Type MCBs

These are suitable for installations with high inrush of current at the time of switching i.e. having inductive loads such as motors, airconditioners, transformers, halogen/fluorescent lamps etc. The magnetic trip system operate between 5In to 10In

Note : B & C type MCBs have same overload tripping characteristics.

 

MCB Selection Chart
Appliances Capacity / Approx Wattage at 240V AC single phase Current Rating of MCB (Amps) Type of MCB
Air-conditioners i) 0.5 Ton 775W 5 C
  ii) 0.75 Ton upto 1200W 7.5 C
  iii) 1 Ton upto 1.5kW 10 C
  iv) 1.5 Ton upto 2.5kW 16 C
  v) 2 Ton split unit upto 3.5kW 20 C
Refrigerator i)165 Ltrs. 1.5 C
  ii) 285 Ltrs. 2 C
  iii) 400 Ltrs. 3 C
  iv) 581 Ltrs. 5 C
Washing Machine i) 300 Watts 2 C
  ii) 1300 Watts (with heater) 7.5 C
  iii) 1800 Watts (with heater) 10 C
  iv) 2200 Watts (with heater) 16 C
Domestic Pump Set i) 0.5 H.P. 6 C
  ii) 1 H.P. 10 C
  iii) 2 H.P. 16 C
Water Heater i) 1 kW 6 B
(Storage or instantaneous Geysers) ii) 2 kW 10 B
iii) 3 kW 16 B
iv) 6 kW 32 B
Cooking Range 4500 Watts 25 B
Oven cum Griller 1750 Watts 10 B
Oven only 750 Watts 6 B
Hot Plate only 2000 Watts 10 B
Microwave Oven 1000 Watts 6 C
Electric Kettle 1500 Watts 10 B
Room Heater i) 1000 Watts 6 B
  ii) 2000 Watts 10 B
Iron i) 750 Watts 5 B
  ii) 1250 Watts 7.5 B
Auto Toaster (2 slices) 1200 Watts 8 B