Table 430.251(B) Conversion Table of Polyphase Design B, C, and D Maximum Locked-Rotor Currents for Selection of Disconnecting Means and Controllers as Determined from Horsepower and Voltage Rating and Design Letter

For use only with 430.110, 440.12, 440.41, and 455.8(C)

Rated HP	Maximum Motor Locked-Rotor Current in Amperes, Two- and Three-Phase, Design B, C, and D*
	115 Volts	200 Volts	208 Volts	230 Volts	460 Volts	575 Volts
	B, C, D	B, C, D	B, C, D	B, C, D	B, C, D	B, C, D
1/2	40	23	22.1	20	10	8
3/4	50	28.8	27.6	25	12.5	10
1	60	34.5	33	30	15	12
1 1/2	80	46	44	40	20	16
2	100	57.5	55	50	25	20
3	-	73.6	71	64	32	25.6
5	-	105.8	102	92	46	36.8
7 1/2	-	146	140	127	63.5	50.8
10	-	186.3	179	162	81	64.8
15	-	267	257	232	116	93
20	-	334	321	290	145	116
25	-	420	404	365	183	146
30	-	500	481	435	218	174
40	-	667	641	580	290	232
50	-	834	802	725	363	290
60	-	1001	962	870	435	348
75	-	1248	1200	1085	543	434
100	-	1668	1603	1450	725	580
125	-	2087	2007	1815	908	726
150	-	2496	2400	2170	1085	868
200	-	3335	3207	2900	1450	1160
250	-	-	-	-	1825	1460
300	-	-	-	-	2200	1760
350	-	-	-	-	2550	2040
400	-	-	-	-	2900	2320
450	-	-	-	-	3250	2600
500	-	-	-	-	3625	2900