Miniature Circuit Breakers MCB's RCBO’s To be B, C or D

"B Type" Not Very Suitable - This type of MCB is used for purely resistive loads, or loads with a very small inductive component. ( Trip current  3 -5 times)
That rules out just a so much of our  Advance Technical Age Devices. (Only use if stuck for (Volt drop) Distance is increased  for smaller cables watch out for E.F.L is not exceeded ( EFL  Earth Fault Return  also nuisance tripping is extremely likely) Lighting non inductive, general purpose outlets.

"C  Type" Most suitable- This type of MCB is used  for loads with moderate inductive componrnts ie low -HP  motors and specific types of lighting (Trip current 5 - 10 times  Medium to high cable sizes) 
Air conditioning, residential & commercial pumps, fans, lights which use ballasts and inductive components.


"D type" Industrial Designs for very high inductive components (  Trip time 10 - 20 times Large cable sizes)
Large induction motors transformers, X-Ray Equipment, Welding Equipment