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Autotransformers

Autotransformers are specialized electrical transformers that step up or step down voltage levels in single-phase AC circuits using a single continuous winding with a common tap. They offer a compact and cost-effective solution for voltage regulation in various industrial and commercial applications but provide less electrical isolation than conventional transformers.

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#5768594

Hammond Y015QTCF3L0U 600V Class Three Phase Autotransformer, 600Y, 480Y - 400Y, 240Y 208Y Volts, 15 kVA. Neutral Terminal

Brand	HPS
Model	Y015QTCF3L0U

$1,510.00 Each

Free Shipping orders over $1

#2975044

HPS Y015PKCB3L0U AUTO 15KVA 600-480 NEMA 3R General Purpose Autotransformers

Brand	HPS
Model	Y015PKCB3L0U

$810.00 Each

Free Shipping orders over $1

#2982754

Hammond Y150QTCH3L0U 3 phase dry type auto transformer

Brand	HPS
Model	Y150QTCH3L0U

$5,810.00 Each

Free Shipping orders over $1

#2937949

Dongan 85-Y035 1KVA 120X240-16/32 TRANSFORMER

Brand	Dongan
Model	85-Y035

$602.14 Each

#5772735

Hammond Y006QTCB3L0U AUTO 6KVA3PH208/240/400/480/ General Purpose Autotransformers

Brand	HPS
Model	Y006QTCB3L0U

$865.00 Each

Free Shipping orders over $1

#2937873

Dongan 85-1055SH 5KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1055SH

$1,389.96 Each

#2937869

Dongan 85-1035SH 1KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1035SH

$533.92 Each

#2974916

HPS Y015CECB3L0U AUTO 15KVA 240/216/208 NEMA 3R General Purpose Autotransformers

Brand	HPS
Model	Y015CECB3L0U

$840.00 Each

Free Shipping orders over $1

#2937875

Dongan 85-1065SH 10KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1065SH

$2,302.56 Each

#2937870

Dongan 85-1040SH 1.5KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1040SH

$652.56 Each

#2937886

Dongan 85-3030SH .750KVA 208-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-3030SH

$551.71 Each

#2937953

Dongan 85-Y055 5KVA 120X240-16/32 TRANSFORMER

Brand	Dongan
Model	85-Y055

$2,117.23 Each

#2937876

Dongan 85-1070SH 15KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1070SH

$2,836.08 Each

#5783111

Hammond Y075QTCH3L0U 3ph 75kVA 600, 480, 400, 240, 208V 60Hz

Brand	HPS
Model	Y075QTCH3L0U

$3,940.00 Each

Free Shipping orders over $1

#2937940

Dongan 85-M030 .750KVA 120X240-12/24 TRANSFORMER

Brand	Dongan
Model	85-M030

$468.66 Each

#2937872

Dongan 85-1050SH 3KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1050SH

$1,005.54 Each

#2974899

HPS Y045PKCN3L0U AUTO 3PH CU 45kVA 600Y-480Y Three-Phase Autotransformers

Brand	HPS
Model	Y045PKCN3L0U

$1,570.00 Each

Free Shipping orders over $1

#2937952

Dongan 85-Y050 3KVA 120X240-16/32 TRANSFORMER

Brand	Dongan
Model	85-Y050

$1,305.13 Each

#2937947

Dongan 85-Y025 .500KVA 120X240-16/32 TRANSFORMER

Brand	Dongan
Model	85-Y025

$364.84 Each

#2937942

Dongan 85-M040 1.5KVA 120X240-12/24 TRANSFORMER

Brand	Dongan
Model	85-M040

$694.09 Each

#2982627

HPS Y030PKCF3L0U AUTO 30KVA 600Y-346V NEMA 3R General Purpose Autotransformers

Brand	HPS
Model	Y030PKCF3L0U

$1,200.00 Each

Free Shipping orders over $1

#2937871

Dongan 85-1045SH 2KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1045SH

$806.81 Each

#2839813

HPS Y075CECN AUTO 3PH 75 KVA General Purpose Autotransformers

Brand	HPS
Model	Y075CECN

$2,040.00 Each

Free Shipping orders over $1

#2937864

Dongan 84-5600-ODY 56KVA 240-208 FACTORY PRE-CONNECTED AUTOTRANSFORMER

Brand	Dongan
Model	84-5600-ODY

$4,408.56 Each

#2937943

Dongan 85-M045 2KVA 120X240-12/24 TRANSFORMER

Brand	Dongan
Model	85-M045

$895.79 Each

#2937859

Dongan 84-2500-3PTT 25KVA 208/ 220/ 240/ 380/ 440/ 480/ 550/ 600 VOLTS - 0 THREE PHASE AUTO TESTING TRANSFORMER

Brand	Dongan
Model	84-2500-3PTT

$8,129.16 Each

#2937950

Dongan 85-Y040 1.5KVA 120X240-16/32 TRANSFORMER

Brand	Dongan
Model	85-Y040

$726.72 Each

#2937874

Dongan 85-1060SH 7.5KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1060SH

$1,825.20 Each

#2839797

HPS Y003QTCB AUTO 3 KVA3PH 208/240/400/480 General Purpose Autotransformers

Brand	HPS
Model	Y003QTCB

Obsolete

See Replacement

#2839816

HPS Y112PKC AUTO 112.5KVA 600-480 NEMA 3R General Purpose Autotransformers

Brand	HPS
Model	Y112PKC

$2,620.00 Each

Free Shipping orders over $1

#2937939

Dongan 85-M025 .500KVA 120X240-12/24 TRANSFORMER

Brand	Dongan
Model	85-M025

$347.05 Each

#5744051

Hammond Y003PKCB3L0U 3ph 3kVA 600, 480V 60Hz CU

Brand	HPS
Model	Y003PKCB3L0U

$440.00 Each

Free Shipping orders over $1

#2835626

HPS 3009C.75 MSA 3 COIL 60/75 HP 480V Motor Starting Autotransformers

Brand	HPS
Model	3009C.75

$2,306.80 Each

Free Shipping orders over $1

#2937890

Dongan 85-3050SH 3KVA 208-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-3050SH

$1,394.11 Each

#5790672

HPS Y009QTCF3L0U Auto 9kVA 600-480-400-240-208V CU 3R Neutral 60Hz

Brand	HPS
Model	Y009QTCF3L0U

$1,220.00 Each

Free Shipping orders over $1

#2937857

Dongan 84-1690-ODY 16.9KVA 240-208 FACTORY PRE-CONNECTED AUTOTRANSFORMER

Brand	Dongan
Model	84-1690-ODY

$1,670.76 Each

#2839810

HPS Y045CECF AUTO 45KVA 240/216/208 NEMA 3R General Purpose Autotransformers

Brand	HPS
Model	Y045CECF

$1,610.00 Each

Free Shipping orders over $1

#2937854

Dongan 84-1000-3PTT 10KVA 208/ 220/ 240/ 380/ 440/ 480/ 550/ 600 VOLTS - 0 THREE PHASE AUTO TESTING TRANSFORMER

Brand	Dongan
Model	84-1000-3PTT

$5,138.64 Each

#2937951

Dongan 85-Y045 2KVA 120X240-16/32 TRANSFORMER

Brand	Dongan
Model	85-Y045

$934.35 Each

#2937902

Dongan 85-4050SH 3KVA 277-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-4050SH

$1,394.11 Each

#2839802

HPS Y009PKCB AUTO 9KVA 600-480 NEMA 3R General Purpose Autotransformers

Brand	HPS
Model	Y009PKCB

$605.00 Each

Free Shipping orders over $1

#2937946

Dongan 85-Y020 .250KVA 120X240-16/32 TRANSFORMER

Brand	Dongan
Model	85-Y020

$278.82 Each

#2937937

Dongan 85-LM055 5KVA 240X480-24/48 TRANSFORMER

Brand	Dongan
Model	85-LM055

$2,308.18 Each

#2839803

HPS Y009QTCF AUTO 9 KVA3PH 208/240/400/480 General Purpose Autotransformers

Brand	HPS
Model	Y009QTCF

$1,220.00 Each

Free Shipping orders over $1

#2937941

Dongan 85-M035 1KVA 120X240-12/24 TRANSFORMER

Brand	Dongan
Model	85-M035

$572.48 Each

#2937863

Dongan 84-500-3PTT 5KVA 208/ 220/ 240/ 380/ 440/ 480/ 550/ 600 VOLTS - 0 THREE PHASE AUTO TESTING TRANSFORMER

Brand	Dongan
Model	84-500-3PTT

$3,341.52 Each

#2937880

Dongan 85-1460SH 7.5KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1460SH

$1,895.40 Each

#2937885

Dongan 85-3025SH .500KVA 208-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-3025SH

$427.13 Each

#2937855

Dongan 84-1120-ODY 11.2KVA 240-208 FACTORY PRE-CONNECTED AUTOTRANSFORMER

Brand	Dongan
Model	84-1120-ODY

$1,404.00 Each

#2839812

HPS Y045QTC AUTO 3PH 45kVA 600-208 CU General Purpose Autotransformers

Brand	HPS
Model	Y045QTC

$3,160.00 Each

Free Shipping orders over $1

#2937866

Dongan 85-1020SH .250KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1020SH

$157.80 Each

#2937938

Dongan 85-M020 .250KVA 120X240-12/24 TRANSFORMER

Brand	Dongan
Model	85-M020

$266.96 Each

#2835609

HPS 3009B.3 MSA 3 COIL 25/30HP 240V Motor Starting Autotransformers

Brand	HPS
Model	3009B.3

$1,938.13 Each

Free Shipping orders over $1

#2835625

HPS 3009C.5 MSA 3 COIL 40/50HP 480V Motor Starting Autotransformers

Brand	HPS
Model	3009C.5

$1,790.67 Each

Free Shipping orders over $1

#2835640

HPS 3009D.5 MSA 3 COIL 40/50HP 600V Motor Starting Autotransformers

Brand	HPS
Model	3009D.5

$2,222.53 Each

Free Shipping orders over $1

#2937945

Dongan 85-M055 5KVA 120X240-12/24 TRANSFORMER

Brand	Dongan
Model	85-M055

$2,016.14 Each

#2835624

HPS 3009C.3 MSA 3 COIL 25/30HP 480V Motor Starting Autotransformers

Brand	HPS
Model	3009C.3

$1,695.87 Each

Free Shipping orders over $1

#2839799

HPS Y006PKCB AUTO 6KVA 600-480 NEMA 3R General Purpose Autotransformers

Brand	HPS
Model	Y006PKCB

$510.00 Each

Free Shipping orders over $1

#2937856

Dongan 84-1500-3PTT 15KVA 208/ 220/ 240/ 380/ 440/ 480/ 550/ 600 VOLTS - 0 THREE PHASE AUTO TESTING TRANSFORMER

Brand	Dongan
Model	84-1500-3PTT

$6,697.08 Each

#2937883

Dongan 85-1475SH 25KVA 240X480-120/240 GP TRANSFORMER

Brand	Dongan
Model	85-1475SH

$3,594.24 Each