Franklin 2007 manual Single-Phase Motor Fuse Sizing

Application – Single-Phase Motors

Table 14 Single-Phase Motor Fuse Sizing

TYPE

4" 2-WIRE

4" 3-WIRE

4" 3-WIRE W/CRC CB

4" 3-WIRE

6"

				CIRCUIT BREAKERS OR FUSE AMPS			CIRCUIT BREAKERS OR FUSE AMPS
MOTOR		RATING			(MAXIMUM PER NEC)			(TYPICAL SUBMERSIBLE)
MODEL					DUAL ELEMENT				DUAL ELEMENT
PREFIX				STANDARD		CIRCUIT	STANDARD			CIRCUIT
	HP	KW	VOLTS		TIME DELAY				TIME DELAY
				FUSE		BREAKER	FUSE			BREAKER
					FUSE				FUSE
	1/2	0.37	115	35	20	30	30		15	30
244504
244505	1/2	0.37	230	20	10	15	15		8	15
244507	3/4	0.55	230	25	15	20	20		10	20
244508	1	0.75	230	30	20	25	25		11	25
244309	1.5	1.1	230	35	20	30	35		15	30
214504	1/2	0.37	115	35	20	30	30		15	30
214505	1/2	0.37	230	20	10	15	15		8	15
214507	3/4	0.55	230	25	15	20	20		10	20
214508	1	0.75	230	30	20	25	25		11	25
214505	1/2	0.37	230	20	10	15	15		8	15
214507	3/4	0.55	230	25	15	20	20		10	20
214508	1	0.75	230	30	20	25	25		11	25
214508			230	30	20	25	25		11	25
W/ 1-1.5 CB	1	0.75
224300	1.5	1.1	230	35	20	30	30		15	30
224301	2	1.5	230	30	20	25	30		15	25
224302	3	2.2	230	45	30	40	45		20	40
224303	5	3.7	230	80	45	60	70		30	60
226110	5	3.7	230	80	45	60	70		30	60
226111	7.5	5.5	230	125	70	100	110		50	100
226112	10	7.5	230	150	80	125	150		60	125
226113	15	11	230	200	125	175	200		90	175

14