2 Hp Motor Amp Draw

Every bit a "rules of thumb" amps horsepower rating can exist estimated to

115 volts motor - single-phase : 14 amps/hp
230 volts motor - single-phase : 7 amps/hp
230 volts motor - 3-phase : ii.5 amps/hp
460 volts motor - 3-phase : ane.25 amps/hp

Always check nameplate information before designing protective devices, wiring and switch gear.

Electric motor

Single-Stage Motors - HP and Full-Load Currents

A motor of a given rated horsepower is expected to evangelize that quantity of mechanical power at the motor shaft. Be aware that the motor efficiency is not calculated in to the values for kW and amps below. Motor efficiency must be considered to avoid undersized power supply.

Power		Full Load Current (amp)
(hp)	(kW)	115 Five	208 V	230 V
1/six	0.13	iv.four	2.4	2.2
1/4	0.19	5.viii	3.2	ii.9
i/3	0.25	7.2	4.0	3.6
1/2	0.38	9.viii	5.4	4.9
3/4	0.56	13.eight	7.6	6.nine
one	0.75	16	8.8	8
1 1/two	one.1	xx	11	x
2	1.5	24	thirteen.2	12
3	2.3	34	xviii.7	17
5	iii.8	56	30.8	28

Note that nigh electric motors are designed to run at 50% to 100% of rated load and that maximum efficiency commonly is virtually 75% of rated load. For a 1 horsepower (hp) motor the load should typically exist in the range 1/two to 1 hp with maximum efficiency at iii/four hp.

Typical load ranges:

acceptable for a short-menstruum: 20 - 120%
acceptable for operating: 50 - 100%
optimum efficiency: threescore - 80%

A motor with a service factor can occasional be overloaded. Overloading volition over time reduce motor efficiency.

3-Stage Motors - HP and Full-Load Currents

Power		Full-Load Current (amp)
Power		Consecration Type Squirrel-Cage and Wound Motor					Synchronous Type Unity Power Factor
(hp)	(kW)	115 V	230 V	460 V	575 Five	2300 V	230 V	460 Five	575 V	2300 V
1/ii	0.38	4	2	1	0.8
3/4	0.56	v.6	ii.8	1.4	1.one
ane	0.75	vii.two	three.6	one.8	ane.4
1 1/two	1.one	10.four	five.2	two.half dozen	2.1
2	ane.5	13.half-dozen	vi.8	3.4	ii.7
3	2.3		9.6	iv.8	three.ix
v	3.8		15.2	7.half-dozen	6.1
seven ane/2	5.six		22	11	ix
x	7.5		28	14	11
15	eleven		42	21	17
20	15		54	27	22
25	19		68	34	27		53	26	21
xxx	23		eighty	40	32		63	32	26
40	xxx		104	52	41		83	41	33
50	38		130	65	52		104	52	42
60	45		154	77	62	16	123	61	49	12
75	56		192	96	77	20	155	78	62	fifteen
100	75		248	124	99	26	202	101	81	xx

1 hp (English language horse power) = 745.7 W = 0.746 kW = 550 ft lb/s = 2,545 Btu/h = 33.000 ft lb/m = 1.0139 metric equus caballus power ~= 1.0 KVA

Direct Electric current Motors - Power and Full Load Currents

Ability		Direct Current (A)
(hp)	(kW)	230 V	440 5
1/iv	0.nineteen	0.81	0.42
1/3	0.25	1.ane	0.56
1/2	0.37	1.half-dozen	0.85
3/4	0.56	2.4	1.three
1	0.75	3.ii	1.vii
1 1/ii	ane.i	4.nine	2.v
2	1.5	vi.5	3.iv
3	2.2	9.seven	v.1
5	three.7	16	8.v
vii 1/2	five.6	24	13
10	seven.v	32	17
15	11	49	25
20	fifteen	65	34
30	22	97	51
50	37	162	85
75	56	243	127
100	75	324	170

for 115V - the amps is twice the amps for 230V