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Buy or Sell Your 300 KVA Transformer

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Tip: Search 120 or 240 for 240/120 volts. Numbers only.
101 - 131 of 131 listings

300 KVA 4160 Primary, 480Y/277 Secondary, EB National Tranformer, dry, outdoor, #DT4766

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
EB National Tranformer Dry Type Transformer, Substation - Dry design, 300 KVA, 4160v Primary, 480Y/277v Secondary.

300 KVA 4800 Primary, 416/240Y Secondary, AED, Nema 1

Jet Electric Motor Co | Pawtucket, RI
Seller: Jet Electric Motor Co
Location: Pawtucket, RI
Mfr: Aed

300 KVA 12000 Delta Primary, 240 Delta Secondary, 3 phase, Substation Transformer

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Batavia, OH

300 KVA 12000 Primary, 480Y/277 Secondary, Westinghouse, Oil, Outdoor, #LT2079

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Westinghouse
Eaton Liquid Type Transformer, Substation - Oil design, 300 KVA, 12000v Primary, 480Y/277v Secondary.

300 KVA 12470 Delta Primary, 208Y/120 Secondary, RTE, 9BA10500B, class OA

Professional Motor Service | Hamilton, OH
Seller: Professional Motor Service
Location: Hamilton, OH
Mfr: Rte

Get email updates for newly added 60 Hz Three Phase Transformers

Three Phase Transformers (also known as three-phase power transformers) are devices designed to step up or step down voltage in three-phase electrical systems operating at 60 Hz. Commonly used in industrial, commercial, and utility applications, they provide efficient energy distribution for large machinery, equipment, and facilities. These transformers are essential for ensuring stable, reliable power in three-phase networks.

300 KVA 12470 Delta Primary, 208Y/120 Secondary, 3 phase, Substation Transformer

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Greenville, SC
Mfr: Westinghouse

300 KVA 12470 Delta Primary, 208Y/120 Secondary (12 available)

T & R Electric Supply Co Inc | Colman, SD
Seller: T & R Electric Supply Co Inc
Location: Colman, SD

300 KVA 12470 Primary, 208Y/120 Secondary, 3 PH dry taps (2)2.5% A+BN C & C only

Boundary Electric Ltd | Grand Forks, BC
Seller: Boundary Electric Ltd
Location: Grand Forks, BC
300KVA 12470 PRI 208Y/120 SEC 3PH DRY TAPS (2)2.5% A+BN C&C ONLY.

300 KVA 12470 Delta Primary, 480Y/277 Secondary, Dry 3 phase Transformer

Sunbelt Solomon Services, LLC | Temple, TX
Seller: Sunbelt Solomon Services, LLC
Location: Temple, TX

300 KVA 12470GrdY/7200 Primary, 208Y/120 Secondary,, substation transformer

Sunbelt Solomon Services, LLC | Temple, TX
Seller: Sunbelt Solomon Services, LLC
Location: Temple, TX

300 KVA 13200 Delta Primary, 208Y/120 Secondary, Silicone, substation transformer

Sunbelt Solomon Services, LLC | Temple, TX
Seller: Sunbelt Solomon Services, LLC
Location: Temple, TX

300 KVA 13200 Delta Primary, 480 Delta Secondary, Standard, liquid filled substation

High To Low Voltage | Commerce City, CO
Seller: High To Low Voltage
Location: Commerce City, CO
Mfr: Standard

300 KVA 13200 Delta Primary, 480Y/277 Secondary, IEN Hanchang, 7-Tap, T-Blade Switch, DOE 2016, UL Listed, new(In-Stock)

H C Transformer & Switchgear | Medford, OR
Seller: H C Transformer & Switchgear
Location: Bakersfield, CA
Mfr: Hanchang
Year: 2025
Ready-to-Ship! Contact us now to receive the As-Built Drawings and Test Reports immediately, High- 300 kVA three-phase pad-mounted transformer manufactured by IEN Hanchang, a premier manufacturer with over 50 years of industry experience supplying products to the U.S. power distribution market., This unit is UL Listed ...more

300 KVA 13200 Delta Primary, 480Y/277 Secondary, 3 phase, Dry Type Transformer

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Battle Ground, WA

300 KVA 13200x4160 Delta Primary, 208Y/120 Secondary, Hevi-Duty, dry, Nema I, taps

Doug Beat Co | Toledo, OH
Seller: Doug Beat Co
Location: Toledo, OH
Mfr: Hevi-Duty

300 KVA 4160GrdY/2400 x 13200GrdY/7620 Primary, 208Y/120 Secondary, Mineral Oil, substation transformer

Sunbelt Solomon Services, LLC | Temple, TX
Seller: Sunbelt Solomon Services, LLC
Location: Temple, TX

300 KVA 13800 Delta Primary, 208Y/120 Secondary, 3 phase, Substation Transformer

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Greenville, SC

300 KVA 13800 Delta Primary, 480 Delta Secondary, General Electric, #T25341-6

Sunbelt Solomon Services, LLC | Temple, TX
Seller: Sunbelt Solomon Services, LLC
Location: Temple, TX
Mfr: General Electric

300 KVA 13800 Delta Primary, 480Y/277 Secondary, General Electric, + & - taps, throat-throat, substation

High To Low Voltage | Commerce City, CO
Seller: High To Low Voltage
Location: Commerce City, CO
Mfr: General Electric

300 KVA 208x Primary, 400Y/231 Secondary, Federal Pacific, Nema I, w/taps

Row Electrical Equipment | Toledo, OH
Seller: Row Electrical Equipment
Location: Toledo, OH
Mfr: Federal Pacific

300 KVA Acme, Transformer, Style G, 3 phase

Genemco | Hearne, TX
Seller: Genemco
Location: Hearne, TX
Mfr: Acme
Acme 300 KVA Transformer. Cat. No: T-1-S3318-3S. Style: G. Shielded for cleaner power. Electrical requirements: 60 Hz, 3 phase. Winding rise: 302 F (150 C). Percent impedance @ 338 F (170 C): 7.33. Overall dimensions: 48 in. L x 40 in. W x 60 in. H.(H17).

300/336 KVA 2400 Delta Primary, 208Y/120 Secondary, 3 phase, Substation Transformer

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Battle Ground, WA

300/336 KVA 4160 Delta Primary, 208Y/120 Secondary, General Electric, substation, #SUB1471

Sunbelt Solomon Services, LLC | Temple, TX
Seller: Sunbelt Solomon Services, LLC
Location: Temple, TX
Mfr: General Electric

300/336 KVA 11000 Delta Primary, 575Y/331 Secondary, 3 phase, Substation Transformer

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Battle Ground, WA

300/336 KVA 12470 Delta Primary, 208Y/120 Secondary, 3 phase, Substation Transformer

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Batavia, OH

300/336 KVA 12470 Delta Primary, 480Y/277 Secondary, 3 phase, Substation Transformer

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Battle Ground, WA

300/336 kVA, 13200 Delta Primary, 208/120 WYE Secondary, Westinghouse Substation

Belyea Company Inc | Easton, PA
Seller: Belyea Company Inc
Location: Easton, PA
Mfr: Delta
Year: 1989
STOCK #T-5018:, ONE (1) 300/336 KVA, WESTINGHOUSE, SILICONE FILLED, SUBSTATION TRANSFORMER, SIDE MOUNTED BUSHINGS, CLASS OA, 4.24% IMPEDANCE, 55/65 DEGREES C, RISE, SEALED TANK DESIGN FOR INDOOR/OUTDOOR USE, WITH DIAL TYPE, THERMOMETER, LIQUID LEVEL GAUGE, PRESSURE VACUUM GAUGE, HIGH VOLTAGE: 13.2 KV DELTA BIL: 110 ...more

300/336 KVA 34500 Delta Primary, 480Y/277 Secondary, 3 phase, Substation Transformer, New

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Battle Ground, WA

300/336 KVA 34500 Delta Primary, 480Y/277 Secondary, 3 phase, Substation Transformer, New

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Battle Ground, WA

300/400 KVA 13200 Delta Primary, 208Y/120 Secondary, 3 phase, Dry Type Transformer

Maddox Industrial Transformer | Battle Ground, WA
Seller: Maddox Industrial Transformer
Location: Greenville, SC