What is a 16 amp MCB used for?

16amp MCB’s are generally used on dedicated Freezer Circuits, and Immersion heaters circuits in the home.

What is a 20 amp MCB used for?

The purpose of the MCB rating is to protect the cables by preventing them from carrying a current greater than they can handle under fault situations. The current carrying capacity of 2.5mm cable ranges from 18 – 27 amps (depending on circumstances) therefore a 20amp breaker would be fine in most situations.

What size MCB for 2.5 mm cable?

2.5MM IS OK FROM A 32AMP MCB BECAUSE IT IS PROTECTED DOWNSTREAM BY A 13aMP FUSE!

How much load can a 32 amp MCB take?

Calculate Size of Main ELCB & Brach MCB of Distribution Box

Size of MCB/ELCB
Current (Amp) Lighting Load MCB/ELCB (Amp) Heating/Cooling/Motor-Pump Load MCB/ELCB (Amp)
25.0 32 32
32.0 40 40
40.0 45 45

What is a 40 amp MCB used for?

An MCB is an automatically operated electrical switch. Miniature circuit breakers are intended to prevent damage to an electrical circuit as a result of excess current. They are designed to trip during an overload or short circuit to protect against electrical faults and equipment failure.

What size MCB do I need for a cooker?

The manufacturer recommends 32amp mcb for cooker. Second response states I can run up to 15kw on 6mm cable. That does seem quite a lot. If both fan ovens on at same time, just want things to be safe, but as I say future proof.

How do I calculate MCB size?

Size of MCB for Branch Circuit-8:

  1. Load Current of Motor-Pump = (No X Watt X Demand Factor)/(1.732XVolt ) =(1X746X0.
  2. Branch Circuit-8 Current as per NEC =Non Continues Load+125% Continues Load.
  3. Branch Circuit-8 Current as per NEC =(0.60)+125%(0) =0.60Amp.
  4. Type of Load=Motor-Pump Type.
  5. Class of MCB=C Class.
  6. Size of MCB=16 Amp.

What size MCB for a cooker?

https://www.youtube.com/watch?v=Ae43a_FV86k