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The AutomationDirect Soft Starter Selector

The AutomationDirect Soft Starter Selector is the definitive resource to research, find and select soft start products for all types of design projects

Choose your product

Three Phase
Info
Single Phase

*Application:
*Motor Voltage:
*Motor Size:	Please select the size of your AC Induction Motor in Amps, KW or HP. HP and KW Motor FLA Table
Connection:	Please select whether the Soft Starter is wired In-Line or In-Delta. When the Soft Starter is wired In-Delta, a smaller unit can often be selected.	In-line/normal In-delta/6 wire
*Starts/Operating Cycles per hour:	Please select the number of soft starts and soft stops per hour.
Ambient Temperature (Default 104°F):	Please select the ambient temperature around the Soft Starter.
Altitude (Default 3280ft):	Please select the altitude the Soft Starter will be used at.

* Required selection

3-phase AC Motor Horsepower/Kilowatt Ratings vs Full-load Motor Current (For Induction-Type Squirrel Cage and Wound Rotor AC Motors)
Kilowatts (KW)	Horsepower (HP)	208 Volts Three Phase (Amps)	220-240 Volts Three Phase (Amps)	440-480 Volts Three Phase (Amps)	575 Volts Three Phase (Amps)
0.37	0.5	2.4	2.2	1.1	0.9
0.55	0.75	3.5	3.2	1.6	1.3
0.75	1	4.6	4.2	2.1	1.7
1.1	1.5	6.6	6	3	2.4
1.5	2	7.5	6.8	3.4	2.7
2.2	3	10.6	9.6	4.8	3.9
3	-	14.5	13.1	6.5	5.2
3.7	5	16.7	15.2	7.6	6.1
4	-	18.2	16.4	8.2	6.6
5.5	7.5	24.2	22	11	9
7.5	10	30.8	28	14	11
11	15	46.2	42	21	17
15	20	59.4	54	27	22
18.5	25	74.8	68	34	27
22	30	88	80	40	32
30	40	114	104	52	41
37	50	143	130	65	52
45	60	169	154	77	62
55	75	211	192	96	77
75	100	273	248	124	99
90	125	343	312	156	125
110	150	396	360	180	144
150	200	528	480	240	192
190	250	-	604	302	242
225	300	-	722	361	289
260	350	-	828	414	336
300	400	-	954	477	382
330	450	-	1030	515	412
370	500	-	-	580	464
450	600	-	-	670	536
515	700	-	-	795	636
550	750	-	-	850	680

Single-phase
Kilowatts (KW)	Horsepower (HP)	110-120 Volts Single Phase (Amps)	220-240 Volts Single Phase (Amps)
0.37	0.5	9.8	4.9
0.55	0.75	13.8	6.9
0.75	1	16	8
1.1	1.5	20	10
1.5	2	24	12
2.2	3	34	17
3	-	49	24
3.7	5	56	28
4	-	60	30
5.5	7.5	80	40
7.5	10	100	50
11	15	135	68
15	20	-	88
18.5	25	-	110
22	30	-	136
30	40	-	176