Square D EE300T3H Transformer, dry type, 300kVA, 3 phase, 480V delta primary, 208Y/120V secondary, 25D, 150C rise
MSRP $36,600Save $27,975In Stock and Ready to Ship
$8,625All In Price - Includes DeliveryFree lower-48 shipping through June 30, 2026
- Capacity
- 300 kVA
- Square D model
- EE300T3H
- Phase
- 3-phase
- Input
- 480 V Delta
- Output
- 208Y/120 V Wye
- Enclosure
- 25D
- Dimensions
- 48" × 48" × 60" - 1350 lb
Free lower-48 shipping promo through June 30, 2026
42 Square D units in stock and ready to ship next business day
90-day warranty full coverage on parts and labor
Certified reconditioned tested under load before shipping
Transformer, dry type, 300kVA, 3 phase, 480V delta primary, 208Y/120V secondary, 25D, 150C rise
Specific Square D model EE300T3H. UL listed, DOE 2016 compliant, 480V Delta primary to 208Y/120V secondary.
- Brand
- Square D
- Catalog number
- EE300T3H
- Capacity
- 300 kVA
- Product title
- Transformer, dry type, 300kVA, 3 phase, 480V delta primary, 208Y/120V secondary, 25D, 150C rise
- Type
- Dry-type, energy efficient general purpose step-down transformer
- Phase
- Three-phase
- Frequency
- 60 Hz
- High voltage input
- 480 V, Delta winding
- Low voltage output
- 208Y/120 V, Wye, grounded neutral
- Winding configuration
- Delta-Wye
- Primary taps
- 6-2.5% taps, 2 above and 4 below nominal
- Insulation class
- Class H, 220 C
- Temperature rise
- 150 C over 40 C ambient
- Cooling
- AA, natural air, self-cooled
- Efficiency
- 98.6% minimum @ 35% load, 75 C
- Impedance
- 5.9%
- Sound level
- 55 dB
- Enclosure code
- 25D
- Height
- 60"
- Width
- 48"
- Depth
- 48"
- Weight
- ~1350 lb
- Standards
- cULus listed - DOE 2016 compliant - NEMA ST-20 - UL 1561
- Warranty
- 90-day warranty
Freight coordination
We crate the transformer and coordinate lower-48 delivery to commercial addresses and job sites.
Square D model in stock
Order the kVA you need and receive the listed Square D catalog model shown on this page.
90-day warranty
Full 90-day coverage on parts and labor. Certified reconditioned units, tested under load before shipping.