Contacts
EN

Stop searching, install MROSupply Smart Check and see our price instantly wherever you browse.

Download Now

Add products to your shopping cart

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.
Show:

Filter

Sort By:
Items per page:
Item ID
Item
Price
Quantity
#2835609
3009B.3
Hammond Power Solutions 3009B.3 MSA motor starting autotransformer, three-phase, 30HP, 240V load voltage, copper windings, 220°C insulation class. Core and coil enclosure with 50%, 65%, 80%, and 100% taps. CSA and UL approved. Medium duty, 60 Hz.
Brand Hammond Power Solutions
Model 3009B.3
$2,445.67 Each
Free Shipping orders over $100
#2835625
3009C.5
Hammond Power Solutions 3009C.5 MSA motor starting autotransformer, three-phase, 50 HP, 480V load voltage, copper windings, core and coil enclosure, 60 Hz, 220°C insulation class. Features 50%, 65%, 80%, and 100% taps. CSA and UL approved. Medium duty. Dimensions: 9 x 11.5 x 7.75 inches.
Brand Hammond Power Solutions
Model 3009C.5
$2,600.40 Each
Free Shipping orders over $100
#2835626
3009C.75
Hammond Power Solutions 3009C.75 MSA motor starting autotransformer, three-phase, 75 HP, 480V load voltage, copper windings, core and coil enclosure, 220°C insulation class, 60 Hz. Features 50%, 65%, 80%, and 100% taps for reduced voltage starting of induction motors. CSA and UL approved.
Brand Hammond Power Solutions
Model 3009C.75
$3,648.11 Each
Free Shipping orders over $100
#2835640
3009D.5
Hammond Power Solutions 3009D.5 MSA motor starting autotransformer, three-phase, 50HP, 600V load voltage, copper windings, core and coil enclosure, 60Hz, 220°C insulation class. Features 50%, 65%, 80%, and 100% taps for reduced voltage motor starting. CSA and UL approved.
Brand Hammond Power Solutions
Model 3009D.5
$2,566.22 Each
Free Shipping orders over $100
#2839795
Y003CECB
Hammond Power Solutions Y003CECB universal autotransformer, 3-phase, 3 kVA, 230V primary to 120/240V secondary, copper windings. Suitable for buck-boost and voltage adjustment applications in commercial and industrial settings.
Brand Hammond Power Solutions
Model Y003CECB
$506.67 Each
Free Shipping orders over $100
#2839798
Y006CECB
Hammond Power Solutions Y006CECB universal autotransformer, 3-phase, 6 kVA, 230V primary to 120/240V secondary, copper windings. Suitable for buck-boost and voltage adjustment applications in commercial and industrial settings.
Brand Hammond Power Solutions
Model Y006CECB
$692.00 Each
Free Shipping orders over $100
#2839799
Y006PKCB
Hammond Power Solutions Y006PKCB Universal Autotransformer, 3-phase, 6 kVA, 600V primary to 480V secondary, copper windings, NEMA 3R enclosure. Suitable for voltage adjustment in industrial and commercial applications.
Brand Hammond Power Solutions
Model Y006PKCB
$653.33 Each
Free Shipping orders over $100
#2839802
Y009PKCB
Hammond Power Solutions Y009PKCB Universal Autotransformer, 3-phase, 9 kVA, 600V primary to 480V secondary, copper windings, NEMA 3R enclosure. Suitable for voltage matching and buck-boost applications in commercial and industrial settings.
Brand Hammond Power Solutions
Model Y009PKCB
$778.67 Each
Free Shipping orders over $100
#2839803
Y009QTCF
Hammond Power Solutions Y009QTCF universal autotransformer, 3-phase, 9 kVA, 480Y/277V secondary, copper windings. General purpose autotransformer for voltage adjustment in industrial and commercial applications.
Brand Hammond Power Solutions
Model Y009QTCF
$1,568.00 Each
Free Shipping orders over $100
#2839807
Y030CECF
Hammond Power Solutions Y030CECF universal autotransformer, 3-phase, 30 kVA, 230V primary to 120/240V secondary, copper windings. Suitable for buck-boost and voltage adjustment applications in commercial and industrial settings.
Brand Hammond Power Solutions
Model Y030CECF
$1,908.67 Each
Free Shipping orders over $100
#2839810
Y045CECF
Hammond Power Solutions Y045CECF universal autotransformer, 3-phase, 45 kVA, 230V primary to 120/240V secondary, copper windings. Suitable for buck-boost and voltage adjustment applications in commercial and industrial settings.
Brand Hammond Power Solutions
Model Y045CECF
$2,496.67 Each
Free Shipping orders over $100
#2839812
Y045QTC
Hammond Power Solutions Y045QTC universal autotransformer, 3-phase, 45 kVA, 480Y/277V secondary, copper windings. Designed for general purpose voltage transformation in industrial and commercial applications.
Brand Hammond Power Solutions
Model Y045QTC
$4,482.32 Each
Free Shipping orders over $100
#2839813
Y075CECN
Hammond Power Solutions Y075CECN Universal Autotransformer, 3-phase, 75 kVA, 230V primary to 120/240V secondary, copper windings. General purpose autotransformer for voltage adjustment in industrial and commercial applications.
Brand Hammond Power Solutions
Model Y075CECN
$3,002.44 Each
Free Shipping orders over $100
#2839816
Y112PKC
Hammond Power Solutions Y112PKC universal autotransformer, 3-phase, 112 kVA, 600V to 480V, copper windings, NEMA 3R enclosure. Designed for voltage matching and buck-boost applications in industrial and commercial power distribution systems.
Brand Hammond Power Solutions
Model Y112PKC
$3,862.20 Each
Free Shipping orders over $100
#2937854
84-1000-3PTT
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
$5,895.28 Each
#2937855
84-1120-ODY
Dongan 84-1120-ODY 11.2KVA 240-208 FACTORY PRE-CONNECTED AUTOTRANSFORMER
Brand Dongan
Model 84-1120-ODY
$1,611.09 Each
#2937856
84-1500-3PTT
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
$7,683.37 Each
#2937857
84-1690-ODY
Dongan 84-1690-ODY 16.9KVA 240-208 FACTORY PRE-CONNECTED AUTOTRANSFORMER
Brand Dongan
Model 84-1690-ODY
$1,917.11 Each
#2937859
84-2500-3PTT
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
$9,325.93 Each
#2937863
84-500-3PTT
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
$3,833.43 Each
#2937864
84-5600-ODY
Dongan 84-5600-ODY 56KVA 240-208 FACTORY PRE-CONNECTED AUTOTRANSFORMER
Brand Dongan
Model 84-5600-ODY
$5,057.48 Each
#2937866
85-1020SH
Dongan 85-1020SH .250KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1020SH
$285.86 Each
#2937869
85-1035SH
Dongan 85-1035SH 1KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1035SH
$612.44 Each
#2937870
85-1040SH
Dongan 85-1040SH 1.5KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1040SH
$748.72 Each
#2937871
85-1045SH
Dongan 85-1045SH 2KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1045SH
$925.59 Each
#2937872
85-1050SH
Dongan 85-1050SH 3KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1050SH
$1,153.41 Each
#2937873
85-1055SH
Dongan 85-1055SH 5KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1055SH
$2,389.11 Each
#2937874
85-1060SH
Dongan 85-1060SH 7.5KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1060SH
Obsolete
#2937875
85-1065SH
Dongan 85-1065SH 10KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1065SH
$2,641.63 Each
#2937876
85-1070SH
Dongan 85-1070SH 15KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1070SH
$3,253.65 Each
#2937880
85-1460SH
Dongan 85-1460SH 7.5KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1460SH
$2,174.35 Each
#2937883
85-1475SH
Dongan 85-1475SH 25KVA 240X480-120/240 GP TRANSFORMER
Brand Dongan
Model 85-1475SH
$4,123.71 Each
#2937886
85-3030SH
Dongan 85-3030SH .750KVA 208-120/240 GP TRANSFORMER
Brand Dongan
Model 85-3030SH
$633.21 Each
#2937890
85-3050SH
Dongan 85-3050SH 3KVA 208-120/240 GP TRANSFORMER
Brand Dongan
Model 85-3050SH
$1,514.33 Each
#2937902
85-4050SH
Dongan 85-4050SH 3KVA 277-120/240 GP TRANSFORMER
Brand Dongan
Model 85-4050SH
$1,514.33 Each
#2937937
85-LM055
Dongan 85-LM055 5KVA 240X480-24/48 TRANSFORMER
Brand Dongan
Model 85-LM055
$2,647.92 Each
#2937939
85-M025
Dongan 85-M025 .500KVA 120X240-12/24 TRANSFORMER
Brand Dongan
Model 85-M025
$398.04 Each
#2937940
85-M030
Dongan 85-M030 .750KVA 120X240-12/24 TRANSFORMER
Brand Dongan
Model 85-M030
$537.65 Each
#2937941
85-M035
Dongan 85-M035 1KVA 120X240-12/24 TRANSFORMER
Brand Dongan
Model 85-M035
$656.48 Each
#2937942
85-M040
Dongan 85-M040 1.5KVA 120X240-12/24 TRANSFORMER
Brand Dongan
Model 85-M040
$796.08 Each
#2937943
85-M045
Dongan 85-M045 2KVA 120X240-12/24 TRANSFORMER
Brand Dongan
Model 85-M045
$1,027.93 Each
#2937945
85-M055
Dongan 85-M055 5KVA 120X240-12/24 TRANSFORMER
Brand Dongan
Model 85-M055
$2,312.80 Each
#2937946
85-Y020
Dongan 85-Y020 .250KVA 120X240-16/32 TRANSFORMER
Brand Dongan
Model 85-Y020
$319.93 Each
#2937947
85-Y025
Dongan 85-Y025 .500KVA 120X240-16/32 TRANSFORMER
Brand Dongan
Model 85-Y025
$418.82 Each
#2937949
85-Y035
Dongan 85-Y035 1KVA 120X240-16/32 TRANSFORMER
Brand Dongan
Model 85-Y035
$690.55 Each
#2937950
85-Y040
Dongan 85-Y040 1.5KVA 120X240-16/32 TRANSFORMER
Brand Dongan
Model 85-Y040
$833.48 Each
#2937951
85-Y045
Dongan 85-Y045 2KVA 120X240-16/32 TRANSFORMER
Brand Dongan
Model 85-Y045
$1,071.97 Each
#2937952
85-Y050
Dongan 85-Y050 3KVA 120X240-16/32 TRANSFORMER
Brand Dongan
Model 85-Y050
$1,417.57 Each
#2937953
85-Y055
Dongan 85-Y055 5KVA 120X240-16/32 TRANSFORMER
Brand Dongan
Model 85-Y055
$2,429.23 Each
#2974899
Y045PKCN3L0U
Hammond Power Solutions Y045PKCN3L0U Universal Autotransformer, 3-phase 45 kVA, 600,480V wye primary to 480V wye secondary, copper windings, 200°C insulation system, 130°C temperature rise, Type 3R enclosure, 60 Hz, CSA and UL listed. Suitable for general duty voltage transformation.
Brand Hammond Power Solutions
Model Y045PKCN3L0U
$2,438.67 Each
Free Shipping orders over $100
#2974916
Y015CECB3L0U
Hammond Power Solutions Y015CECB3L0U universal autotransformer, 3-phase 15 kVA, 240,216,208V primary to 120/240V secondary, copper windings, Type 3R enclosure, 80°C rise, 130°C insulation, 60 Hz, CSA and UL listed.
Brand Hammond Power Solutions
Model Y015CECB3L0U
$1,113.09 Each
Free Shipping orders over $100
#2975044
Y015PKCB3L0U
Hammond Power Solutions Y015PKCB3L0U universal autotransformer, 3-phase, 15 kVA, 600,480V primary to 480V secondary, copper windings, Type 3R enclosure, 80°C rise, 130°C insulation, 60 Hz, CSA and UL listed.
Brand Hammond Power Solutions
Model Y015PKCB3L0U
$1,042.67 Each
Free Shipping orders over $100
#2982627
Y030PKCF3L0U
Hammond Power Solutions Y030PKCF3L0U Universal Autotransformer, 3-phase, 30 kVA, 600,480V primary to 480V secondary, wye-N connection. Copper windings with 180°C insulation system and 115°C temperature rise. Type 3R enclosure rated for outdoor use. CSA and UL approved. Standard efficiency, 60 Hz.
Brand Hammond Power Solutions
Model Y030PKCF3L0U
$1,862.67 Each
Free Shipping orders over $100
#2982754
Y150QTCH3L0U
Hammond Power Solutions Y150QTCH3L0U universal autotransformer, 3-phase, 150 kVA, 600/480/400/240/208V primary to 480Y/277V secondary, copper windings, Type 3R enclosure, 150°C rise, 220°C insulation, 60 Hz, CSA and UL listed.
Brand Hammond Power Solutions
Model Y150QTCH3L0U
$8,550.00 Each
Free Shipping orders over $100
#5744051
Y003PKCB3L0U
Hammond Power Solutions Y003PKCB3L0U Universal Autotransformer, 3-phase, 3 kVA, 600,480V primary to 480V secondary, wye-N connection. Copper windings with 130°C insulation and 80°C rise. Type 3R enclosure rated for outdoor use. CSA and UL listed. Standard efficiency, 60 Hz.
Brand Hammond Power Solutions
Model Y003PKCB3L0U
$564.67 Each
Free Shipping orders over $100
#5768594
Y015QTCF3L0U
Hammond Power Solutions Y015QTCF3L0U universal autotransformer, 3-phase, 15 kVA, 600,480,400,240,208V primary to 480Y/277V secondary. Copper windings with 180°C insulation system and 115°C temperature rise. Type 3R enclosure for outdoor use. Wye-N connection with full-rated neutral. CSA and UL approved. 60 Hz, 45 dBA sound level.
Brand Hammond Power Solutions
Model Y015QTCF3L0U
$1,946.00 Each
Free Shipping orders over $100
#5772735
Y006QTCB3L0U
Hammond Power Solutions Y006QTCB3L0U Universal Autotransformer, 3-phase, 6 kVA, 600/480/400/240/208V primary to 480Y/277V secondary wye-N connection. Copper windings, 80°C rise, 130°C insulation, Type 3R enclosure. CSA and UL approved, IBC 2018 seismic compliant. Standard efficiency, 60 Hz.
Brand Hammond Power Solutions
Model Y006QTCB3L0U
$1,120.00 Each
Free Shipping orders over $100
#5783111
Y075QTCH3L0U
Hammond Power Solutions Y075QTCH3L0U universal autotransformer, 3-phase, 75 kVA, 600/480/400/240/208V primary to 480Y/277V secondary, copper windings, 220°C insulation system, 150°C temperature rise, Type 3R enclosure, wye-N connection, 60 Hz, CSA and UL listed. Suitable for general duty voltage conversion applications.
Brand Hammond Power Solutions
Model Y075QTCH3L0U
$5,806.71 Each
Free Shipping orders over $100
#5790667
Y003QTCB3L0U
Hammond Power Solutions Y003QTCB3L0U universal autotransformer, 3-phase, 3 kVA, 600/480/400/240/208V primary to 480Y/277V secondary wye-N connection. Copper windings, 80°C rise, 130°C insulation class. Type 3R enclosure, ANSI 61 grey finish. CSA and UL approved. IBC 2018 seismic compliant. 60 Hz.
Brand Hammond Power Solutions
Model Y003QTCB3L0U
$973.33 Each
Free Shipping orders over $100
#5790672
Y009QTCF3L0U
Hammond Power Solutions Y009QTCF3L0U universal autotransformer, 3-phase, 9 kVA, 600,480,400,240,208V primary to 480Y/277V secondary wye-N connection. Copper windings, 180°C insulation, 115°C rise, Type 3R enclosure. CSA and UL approved, IBC 2018 seismic compliant. Standard efficiency, 60 Hz.
Brand Hammond Power Solutions
Model Y009QTCF3L0U
$1,568.00 Each
Free Shipping orders over $100