Transformer Products

Dry-type distribution transformers in single-phase and three-phase configurations. Step-down, step-up, drive isolation, and solar variants available from 7.5 kVA to 1000 kVA.

Transformer Products

Browse Transformers by Category

Filter by transformer type to find the configuration that matches your project requirements. Contact us for availability and detailed specifications.

1-Phase 208 - 120/240 Transformer
Single Phase

1-Phase 208 - 120/240 Transformer

kVA: 15–100 kVA SKU: SG3L0015BE

Single-phase step-down transformer converting 208V primary to 120/240V secondary. High-efficiency silicon stee…

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1-Phase 240x480 - 120/240 Transformer
Single Phase

1-Phase 240x480 - 120/240 Transformer

kVA: 15–100 kVA SKU: SG3L0015BE-D

Single-phase dual-primary transformer with 240x480V primary and 120/240V secondary. Suitable for both 240V and…

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3-Phase 480V Delta - 208 Y/120
Three Phase

3-Phase 480V Delta - 208 Y/120

kVA: 15–1000 kVA SKU: SG3A0015KB0C

Three-phase 480V delta to 208Y/120V step-down transformer. Available 15 kVA to 1000 kVA with energy-efficient …

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3-Phase 480V Delta - 240V Delta/120
Three Phase

3-Phase 480V Delta - 240V Delta/120

kVA: 15–300 kVA SKU: SG3A0015KD0C

Three-phase 480V delta to 240V delta/120V step-down transformer. Delta-delta output configuration for specific…

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3-Phase 480V Delta - 416 Y/240
Three Phase

3-Phase 480V Delta - 416 Y/240

kVA: 15–300 kVA SKU: SG3A0015KE0C

Three-phase 480V delta to 416Y/240V transformer for industrial distribution applications. Available in multipl…

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3-Phase 480V Delta - 400 Y/231
Three Phase

3-Phase 480V Delta - 400 Y/231

kVA: 15–300 kVA SKU: SG3A0015KF0C

Three-phase 480V delta to 400Y/231V transformer. Suitable for connecting North American 480V sources to intern…

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3-Phase 480V Delta - 480 Y/277 Isolation Transformer
Three Phase

3-Phase 480V Delta - 480 Y/277 Isolation Transformer

kVA: 15–300 kVA SKU: SG3A0015KG0C

Three-phase 480V delta to 480Y/277V isolation transformer providing galvanic isolation for noise reduction and…

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3-Phase 600V Delta - 208 Y/120
Three Phase

3-Phase 600V Delta - 208 Y/120

kVA: 15–300 kVA SKU: SG3A0015KC0C

Three-phase 600V delta to 208Y/120V step-down transformer. Ideal for Canadian and industrial facilities runnin…

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3-Phase 600V Delta - 480 Y/277
Three Phase

3-Phase 600V Delta - 480 Y/277

kVA: 15–300 kVA SKU: SG3A0015KH0C

Three-phase 600V delta to 480Y/277V transformer for industrial power distribution where 600V primary service i…

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3-Phase 240V Delta - 208 Y/120
Three Phase

3-Phase 240V Delta - 208 Y/120

kVA: 15–225 kVA SKU: SG3A0015KI0C

Three-phase 240V delta to 208Y/120V transformer. Provides step-down conversion from 240V delta supply to stand…

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3-Phase 208V Delta - 480 Y/277 Step Up Transformer
Step-Up

3-Phase 208V Delta - 480 Y/277 Step Up Transformer

kVA: 15–300 kVA SKU: SG3A0015KJ0C

Three-phase step-up transformer converting 208V delta to 480Y/277V. Used to boost voltage for equipment requir…

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3-Phase 208V Delta - 416 Y/240 Step Up Transformer
Step-Up

3-Phase 208V Delta - 416 Y/240 Step Up Transformer

kVA: 15–225 kVA SKU: SG3A0015KK0C

Three-phase 208V delta to 416Y/240V step-up transformer for international equipment applications requiring Eur…

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3-Phase 208V Delta - 380 Y/219 Step Up Transformer
Step-Up

3-Phase 208V Delta - 380 Y/219 Step Up Transformer

kVA: 15–225 kVA SKU: SG3A0015KL0C

Three-phase 208V delta to 380Y/219V step-up transformer supporting European 380V equipment from North American…

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3-Phase 208V Delta - 240 D/120 Step Up Transformer
Step-Up

3-Phase 208V Delta - 240 D/120 Step Up Transformer

kVA: 15–150 kVA SKU: SG3A0015KM0C

Three-phase 208V delta to 240D/120V step-up transformer with delta output for legacy 240V delta distribution s…

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3-Phase 240V Delta - 480 Y/277 Step Up Transformer
Step-Up

3-Phase 240V Delta - 480 Y/277 Step Up Transformer

kVA: 15–300 kVA SKU: SG3A0015KN0C

Three-phase step-up transformer converting 240V delta to 480Y/277V. DOE 2016 energy efficient design. Suitable…

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3-Phase 240V Delta - 380 Y/219 Step Up Transformer
Step-Up

3-Phase 240V Delta - 380 Y/219 Step Up Transformer

kVA: 15–150 kVA SKU: SG3A0015KO0C

Three-phase 240V delta to 380Y/219V step-up transformer for international power compatibility requirements in …

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3-Phase 240V Delta - 400 Y/231 Step Up Transformer
Step-Up

3-Phase 240V Delta - 400 Y/231 Step Up Transformer

kVA: 15–225 kVA SKU: SG3A0015KP0C

Three-phase 240V delta to 400Y/231V step-up transformer supporting IEC standard 400V equipment from North Amer…

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3-Phase 240V Delta - 416 Y/240 Step Up Transformer
Step-Up

3-Phase 240V Delta - 416 Y/240 Step Up Transformer

kVA: 15–150 kVA SKU: SG3A0015KQ0C

Three-phase 240V delta to 416Y/240V step-up transformer. Supports international and specialized equipment volt…

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3-Phase 480 D - 480 Y/277 Drive Isolation Transformer
Drive Isolation

3-Phase 480 D - 480 Y/277 Drive Isolation Transformer

kVA: 7.5–660 kVA SKU: DM007KK

Three-phase 480D to 480Y/277V drive isolation transformer. CSA and UL approved, K4 rated with electrostatic sh…

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3-Phase 480 D - 240 Y/139 Drive Isolation Transformer
Drive Isolation

3-Phase 480 D - 240 Y/139 Drive Isolation Transformer

kVA: 7.5–275 kVA SKU: DM007KA

Three-phase 480D to 240Y/139V drive isolation transformer. K4 rated with electrostatic shielding for variable …

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3-Phase 460 D - 230 Y/133 Drive Isolation Transformer
Drive Isolation

3-Phase 460 D - 230 Y/133 Drive Isolation Transformer

kVA: 7.5–175 kVA SKU: DM007KB

Three-phase 460D to 230Y/133V drive isolation transformer for variable speed drive applications. K4 rated for …

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3-Phase 460 D - 460 Y/266 Drive Isolation Transformer
Drive Isolation

3-Phase 460 D - 460 Y/266 Drive Isolation Transformer

kVA: 7.5–145 kVA SKU: DM007KC

Three-phase 460D to 460Y/266V drive isolation transformer. Provides galvanic isolation for variable frequency …

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3-Phase 208 D - 480 Y/277 Step-Up Drive Isolation Transformer
Drive Isolation

3-Phase 208 D - 480 Y/277 Step-Up Drive Isolation Transformer

kVA: 7.5–220 kVA SKU: DM007KD

Three-phase 208D to 480Y/277V step-up drive isolation transformer. Provides both voltage step-up and drive iso…

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3-Phase 480 Y/277 - 208 Y/120 Solar Transformer
Solar

3-Phase 480 Y/277 - 208 Y/120 Solar Transformer

kVA: 15–150 kVA SKU: SG3Y0030KB0AHC0S

Three-phase 480Y/277V to 208Y/120V solar step-down transformer. DOE 2016 energy efficient with high efficiency…

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Need a Specific Transformer Configuration?

Contact John Electrical Contractors LLC to discuss your transformer requirements.

Contact Us (608) 501-9270