220 Volt Three Phase Autotransformers

L. 220 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, 220V Primary

Select Secondary Voltage Below
kVA	440V	416V	400V	380V	240V	230V	220V
15	T56320	T56330	T56340	T56350	T56360	T56370	T56380
30	T56321	T56331	T56341	T56351	T56361	T56371	T56381
45	T56322	T56332	T56342	T56352	T56362	T56372	T56382
75	T56323	T56333	T56343	T56353	T56363	T56373	T56383
112.5	T56324	T56334	T56344	T56354	T56364	T56374	T56384
225	T56325	T56335	T56345	T56355	T56365	T56375	T56385
300	T56326	T56336	T56346	T56356	T56366	T56376	T56386
450	T56327	T56337	T56347	T56357	T56367	T56377	T56387
500	T56328	T56338	T56348	T56358	T56368	T56378	T56388
750	T56329	T56339	T56349	T56359	T56369	T56379	T56389
kVA	216V	208V	200V	190V	120V	115V	110V
15	T56390	T56400	T56410	T56420	T56430	T56440	T56450
30	T56391	T56401	T56411	T56421	T56431	T56441	T56451
45	T56392	T56402	T56412	T56422	T56432	T56442	T56452
75	T56393	T56403	T56413	T56423	T56433	T56443	T56453
112.5	T56394	T56404	T56414	T56424	T56434	T56444	T56454
225	T56395	T56405	T56415	T56425	T56435	T56445	T56455
300	T56396	T56406	T56416	T56426	T56436	T56446	T56456
450	T56397	T56407	T56417	T56427	T56437	T56447	T56457
500	T56398	T56408	T56418	T56428	T56438	T56448	T56458
750	T56399	T56409	T56419	T56429	T56439	T56449	T56459

Output Amps

kVA	Output Amps at:
kVA	440V	416V	400V	380V	240V	230V	220V	216V	208V	200V	190V	120V	115V	110V
15	19.7	20.8	21.7	22.8	36.1	37.7	39.4	40.1	41.6	43.3	45.6	72.2	75.3	78.7
30	39.4	41.6	43.3	45.6	72.2	75.3	78.7	80.2	83.3	86.6	91.2	144.3	150.62	157.5
45	59.1	62.5	64	68.4	108.3	112	118.1	120.3	124.9	129.9	136.7	216.5	225.93	236.2
75	98.4	104.1	108.3	113	180.4	188.3	196.8	200.5	208.2	216.5	227.9	360.9	376.54	393.7
112.5	147.6	156.1	162.4	170.9	270.6	282.4	295.2	300.7	312.3	324.8	341.9	541.3	564.82	590.5
225	295.2	312.3	324.8	341.9	541.2	564.8	590.5	601.4	624.6	649.5	683.7	1082	1129	1180
300	393.7	416.4	433	455.8	721.7	753.1	787.3	801.9	832.7	866.1	911.6	1443	1506	1574
450	590.5	624.6	649.5	683.7	1082	1129	1180	1202	1249	1299	1367	2165	2259	2361
500	656.1	693	721.7	759.7	1202	1255	1312	1336	1387	1443	1519	2405	2510	2624
750	984.2	1040.9	1082.6	1139	1804	1882	1968	2004	2081	2165	2279	3608	3765	3936