(17) Residence Distribution Box_s-MCB-Wire Size Calculation(1.8.23).xlsx

	B	C	D	E	F	G	H	I	J	K	L	M	N	Y
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2	Residence / Small Electrical Distribution Box Designing
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4	Size of Main Circuit Breaker		Load Detail for Distribution Box					Distribution Box Details
5	Type of C.B		Continious Load			4	Amp	Incoming Supply of D.B		3PHASE
6	Pole	Triple Pole(TP)	Non-Continious Load			21	Amp	Load on R Phase (Amp)		11
7	Size	32 Amp	Total Load Current as per NEC			25	Amp	Load on Y Phase (Amp)		9
8	Class	B or C class	Total Electrical Load Current			24	Amp	Load on B Phase (Amp)		6
9	Tripping (Amp)	121 Amp	Total Diversified Load			6	KW	Un Balance Current		33%			Jignesh.Parmar
10	Sen.I∆n	I∆n:30ma	Max.Branch Feeder MCB			6	Amp	Size of Distribution Box					jiguparmar@yahoo.com
11	Brea.Capacity	6 Amp	Min.Size of Main MCB as per NEC			25	Amp	TPN -6 Way Distribution Box					www.electricalnotes.wordpress.com
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13	Electrical Circuit Detail of Distribution Box
14	Load Detail						MCB Detail			Wire Detail		Results
15	Circuit No	Type of Load	Circuit Load (Kw)	Circuit Current (Amp)	No of Equipment	Current as Per NEC (Amp)	MCB Size (Amp)	MCB Class	No of Pole MCB	Select Actual wire Size	Wire (Amp)	Wire Selection	MCB Selection
16	MCB-1	Lighting	0.8	3.5	4	4.3	6	B Class	Single Pole (SP)	1cX0.75	7	O.K	O.K	MCB
17	MCB-2	Heating / Cooling	1.2	5.2	1	5.2	6	C Class	Single Pole (SP)	1cX1	11	O.K	O.K	MCCB
18	MCB-3	Lighting	0.1	0.3	1	0.3	6	B Class	Single Pole (SP)	1cX4	26	O.K	O.K	RCB
19	MCB-4	Lighting	0.2	1.0	2	1.0	6	B Class	Single Pole (SP)	1cX0.5	4	O.K	O.K	ELCB
20	MCB-5	Lighting	0.6	2.5	7	2.5	6	B Class	Single Pole (SP)	1cX0.75	7	O.K	O.K	RCCB
21	MCB-6	Lighting	0.2	0.8	8	0.8	6	B Class	Single Pole (SP)	1cX1.5	15	O.K	O.K	4
22	MCB-7	Heating / Cooling	1.2	5.2	1	5.2	6	C Class	Single Pole (SP)	1cX2.5	19	O.K	O.K
23	MCB-8	Lighting	0.1	0.6	6	0.6	6	B Class	Single Pole (SP)				O.K
24	MCB-9	Heating / Cooling	1.0	4.4	1	4.4	6	C Class	Single Pole (SP)				O.K
25	MCB-10	Motor-Pump	0.4	0.6	1	0.6	6	C Class	Triple Pole(TP)				O.K
26	MCB-11		0.0	0.0	0	0.0
27	MCB-12		0.0	0.0	0	0.0
28	MCB-13		0.0	0.0	0	0.0
29	MCB-14		0.0	0.0	0	0.0
30	MCB-15		0.0	0.0	0	0.0
31	MCB-16		0.0	0.0	0	0.0
32	MCB-17		0.0	0.0	0	0.0
33	MCB-18		0.0	0.0	0	0.0
34	MCB-19		0.0	0.0	0	0.0
35	MCB-20		0.0	0.0	0	0.0
36	MCB-21		0.0	0.0	0	0.0
37	MCB-22		0.0	0.0	0	0.0
38	MCB-23		0.0	0.0	0	0.0
39	MCB-24		0.0	0.0	0	0.0
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41	TOTAL		6	24	32	25
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