Multiquip MQP40IZ Three Phase NEMA Motor Code Table, 0.82, 0.55, 0.78, 0.64, 0.76, 0.70, 0.72

GENSET SIZING — DETERMINING LOAD CHARACTERISTICS

Three Phase NEMA Motor Code Table

Table 7 lists the 3Ø motor starting kVA, starting power factor, and motor factors. Do not confuse the NEMA (National Electrical Manufacturers Association) motor Code and design letters. The code letter refers to the ratio of locked rotor kVA to HP, whereas the design letter refers to the ratio of torque to speed.

Table 7. Three Phase Motor SkVA, SPF, EFF, and RPF

HP				NEMA Motor Code Letters									Motor Factors
	A	B	C	D	E	F	G	H	J	K	L	N	SPF	EFF	RPF
1/4	0.5	0.8	0.9	1.0	1.2	1.3	1.5	1.7	1.9	2.1	2.4	2.9	0.82	62.8	0.55
1/2	1.0	1.7	1.9	2.1	2.4	2.6	3.0	3.3	3.8	4.2	4.7	5.9	0.82	62.8	0.55
3/4	1.5	2.5	2.8	3.2	3.6	4.0	4.5	5.0	5.7	6.4	7.1	8.9	0.78	69.3	0.64
1	2	3	4	4	5	5	6	7	8	8	9	12	0.76	73.0	0.70
1-1/2	3	5	6	6	7	8	9	10	11	13	14	18	0.72	76.9	0.76
2	4	7	8	8	9	11	12	13	15	17	19	24	0.70	79.1	0.79
3	6	10	11	13	14	16	18	20	23	25	28	35	0.66	82.5	0.82
5	10	15	19	21	24	26	30	33	38	42	47	59	0.61	83.8	0.85
7-1/2	15	25	28	32	36	40	45	50	57	64	71	89	0.56	85.1	0.87
10	20	33	38	42	47	53	59	67	75	85	95	118	0.53	85.9	0.87
15	30	50	57	64	71	79	89	100	113	127	142	177	0.49	86.9	0.88
20	40	67	75	85	95	106	119	134	151	170	190	236	0.46	87.6	0.89
25	50	84	94	106	119	132	149	167	189	212	237	295	0.44	88.0	0.89
30	60	100	113	127	142	159	178	201	226	255	285	354	0.42	88.4	0.89
40	80	134	151	170	190	212	238	268	302	340	380	475	0.39	88.9	0.90
50	100	167	189	212	237	265	297	335	377	425	475	590	0.36	89.6	0.90
60	120	201	226	255	285	318	357	402	453	510	570	708	0.36	89.6	0.90
75	150	251	283	318	356	397	446	502	566	637	712	885	0.34	90.0	0.90
100	200	335	377	425	475	530	595	670	755	849	949	1180	0.31	90.5	0.91
125	250	418	471	531	593	662	743	837	943	1062	1187	1475	0.29	90.9	0.91
150	300	502	566	637	712	794	892	1004	1132	1274	1424	1770	0.28	91.2	0.91
200	400	669	754	849	949	1059	1189	1339	1509	1699	1899	2360	0.25	91.7	0.91
250	500	836	943	1061	1186	1324	1486	1674	1886	2124	2374	2950	0.24	92.0	0.91
300	600	1004	1131	1274	1424	1589	1784	2009	2264	2549	2849	3540	0.22	92.3	0.92
350	700	1171	1320	1486	1661	1853	2081	2343	2641	2973	3323	4130	0.19	93.1	0.92
400	800	1338	1508	1698	1898	2118	2378	2678	3018	3398	3798	4720	0.19	93.1	0.92
500	1000	1673	1885	2123	2373	2648	2973	3348	3773	4248	4748	5900	0.17	93.8	0.92

INDUSTRIAL GENERATOR SETS — APPLICATION & INSTALLATION MANUAL — REV. #4 (09/07/07) — PAGE 25