MCB / MCCB / ELCB Quick Reference (Part-1)

 

Standard Size of MCB/MCCB/ELCB/RCCB/SFU/Fuse:

MCB	Up to 63 Amp (80Amp and 100 Amp a    per Request)
MCCB	Up to 1600 Amp (2000 Amp as per Request)
ACB	Above 1000 Amp
MCB Rating	6A,10A,16A,20A,32A,40A,50A,63A
MCCB Rating	0.5A,1A,2A,4A,6A,10A,16A,20A,32A,40A,50A,63A,80A,100A (Domestic Max 6A)
RCCB/ELCB	6A,10A,16A,20A,32A,40A,50A,63A,80A,100A
Sen. of ELCB	30ma (Domestic),100ma (Industrial),300ma
DPIC (Double Pole Iron Clad) main switch	5A,15A,30 A for 250V
TPIC (Triple Pole Iron Clad) main switch	30A, 60A, 100A, 200 A For 500 V
DPMCB	5A, 10A, 16A, 32A and 63 A for 250V
TPMCCB	100A,200A, 300Aand 500 A For 660 V
TPN main switch	30A, 60A, 100A, 200A, 300 A For 500 V
TPNMCB	16A, 32A,63A For 500 V, beyond this TPNMCCB: 100A, 200A, 300A, 500 A For 660 V
TPN Fuse Unit (Rewirable)	16A,32A,63A,100A,200A
Change over switch (Off Load)	32A,63A,100A,200A,300A,400A,630A,800A
SFU (Switch Fuse Unit)	32A,63A,100A,125A,160A,200A,250A,315A,400A,630A
HRC Fuse TPN (Bakelite)	125A,160A,200A,250A,400A.630A
HRC Fuse DPN (Bakelite)	16A,32A,63A
MCB/MCCB/ELCB Termination Wire / Cable
Up to 20A MCB	Max. 25 Sq.mm
20A to 63A MCB	Max. 35 Sq.mm
MCCB	Max. 25 Sq.mm
6A to 45A ELCB	16 Sq.mm
24A to 63A ELCB	35 Sq.mm
80A to 100A ELCB	50 Sq.mm

 MCB  Class according to Applications:

MCB Class according to Appliances
Appliance	Capacity / watt	MCB Rating	MCB Class
Air Conditioner	1.0 Tone	10A	C Class
	1.5 Tone	16A	C Class
	2.0 Tone	20A	C Class
Freeze	165 Liter	3 A	C Class
	350 Liter	4 A	C Class
Oven /Grill	4500 Watt	32 A	B Class
	1750 Watt	10 A	B Class
Oven / Hotplate	750 Watt	6 A	B Class
	2000 Watt	10 A	B Class
Room Heater	1000 Watt	6 A	B Class
	2000 Watt	10 A	B Class
Washing Machine	300 Watt	2 A	C Class
	1300 Watt	8 A	C Class
Water Heater	1000 Watt	6 A	B Class
	2000 Watt	10 A	B Class
	3000 Watt	16 A	B Class
	6000 Watt	32 A	B Class
Iron	750 Watt	6 A	B Class
	1250 Watt	8 A	B Class
Toaster	1200 Watt	8 A	B Class
	1500 Watt	10 A	B Class