240 Volt Three Phase Autotransformers

J. 240 Volts Primary, Three Phase Autotransformers

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TEMCo Single Phase Autotransformers are 50/60 Hz rated and come in a NEMA 3R enclosure for indoor use as well as outdoor protection against rain and sleet. Our transformers are built to last, guaranteed. That's why we back these with a decade long warranty.

• UL Listed, CSA Approved
• Copper windings
• 50/60 Hz rated
• NEMA 3R Enclosure (for indoor or outdoor use)

Looking for a different specification? Click here to see all the primary voltage configurations, or see our full selection of autotransformers here.

Product Selection

Copper Wound Autotransformers, 240V Primary

Select Secondary Voltage Below
kVA	480V	460V	440V	416V	400V	380V	240V
15	T56040	T56050	T56060	T56070	T56080	T56090	T56100
30	T56041	T56051	T56061	T56071	T56081	T56091	T56101
45	T56042	T56052	T56062	T56072	T56082	T56092	T56102
75	T56043	T56053	T56063	T56073	T56083	T56093	T56103
112.5	T56044	T56054	T56064	T56074	T56084	T56094	T56104
225	T56045	T56055	T56065	T56075	T56085	T56095	T56105
300	T56046	T56056	T56066	T56076	T56086	T56096	T56106
450	T56047	T56057	T56067	T56077	T56087	T56097	T56107
500	T56048	T56058	T56068	T56078	T56088	T56098	T56108
750	T56049	T56059	T56069	T56079	T56089	T56099	T56109
kVA	230V	220V	216V	208V	200V	190V	120V
15	T56110	T56120	T56130	T56140	T56150	T56160	T56170
30	T56111	T56121	T56131	T56141	T56151	T56161	T56171
45	T56112	T56122	T56132	T56142	T56152	T56162	T56172
75	T56113	T56123	T56133	T56143	T56153	T56163	T56173
112.5	T56114	T56124	T56134	T56144	T56154	T56164	T56174
225	T56115	T56125	T56135	T56145	T56155	T56165	T56175
300	T56116	T56126	T56136	T56146	T56156	T56166	T56176
450	T56117	T56127	T56137	T56147	T56157	T56167	T56177
500	T56118	T56128	T56138	T56148	T56158	T56168	T56178
750	T56119	T56129	T56139	T56149	T56159	T56169	T56179

Output Amps

kVA	Output Amps at:
kVA	480V	460V	440V	416V	400V	380V	240V	230V	220V	216V	208V	200V	190V	120V
15	18	18.8	19.7	20.8	21.7	22.8	36.1	37.7	39.4	40.1	41.6	43.3	45.6	72.2
30	36.1	37.7	39.4	41.6	43.3	45.6	72.2	75.3	78.7	80.2	83.3	86.6	91.2	144.3
45	54.1	56.5	59.1	62.5	64	68.4	108.3	112	118.1	120.3	124.9	129.9	136.7	216.5
75	90.2	94.1	98.4	104.1	108.3	113	180.4	188.3	196.8	200.5	208.2	216.5	227.9	360.9
112.5	135.3	141.2	147.6	156.1	162.4	170.9	270.6	282.4	295.2	300.7	312.3	324.8	341.9	541.3
225	270.6	282.4	295.2	312.3	324.8	341.9	541.2	564.8	590.5	601.4	624.6	649.5	683.7	1082
300	360.9	376.5	393.7	416.4	433	455.8	721.7	753.1	787.3	801.9	832.7	866.1	911.6	1443
450	541.3	564.8	590.5	624.6	649.5	683.7	1082	1129	1180	1202	1249	1299	1367	2165
500	601.4	627.6	656.1	693	721.7	759.7	1202	1255	1312	1336	1387	1443	1519	2405
750	902.1	941.4	984.2	1040.9	1082.6	1139	1804	1882	1968	2004	2081	2165	2279	3608