Product Description
Eaton V48M22T7516 is a general purpose, energy-efficient ventilated dry-type transformer with aluminum windings and a rugged NEMA 2 indoor enclosure. This 75 kVA, 3-phase unit steps 480V delta down to 240V delta with 120V midtap, making it ideal for mixed 240/120V loads in commercial and light industrial facilities.
Catalog #: V48M22T7516
kVA Rating: 75 kVA
Primary Voltage: 480V Δ
Secondary Voltage: 240V Δ with 120V midtap
Phase / Frequency: 3-phase, 60 Hz
Temperature Rise: 150 °C (220 °C insulation)
Sound Level: NEMA ST-20
Taps: 2 at +2.5%, 4 at −2.5%
Enclosure: NEMA 2 (indoor), ventilated
Windings: Aluminum
Size / Weight: 43" H × 30.5" W × 24" D, 576 lb
UPC: 786680175701
Perk: Free shipping on orders over $250
Product Benefits
- Flexible secondary supports both 240V three-phase and 120V single-phase loads via the midtap.
- Energy-efficient design meets DOE 2016 requirements to help reduce operating costs.
- Quiet operation with NEMA ST-20 sound level for occupant-friendly installations.
- Rugged indoor construction—ventilated NEMA 2 enclosure for dependable heat dissipation.
Key Features
- 3-phase, 75 kVA for commercial/light industrial distribution.
- Aluminum windings and 220 °C insulation with 150 °C rise for long life.
- Voltage adjustment taps: 2 at +2.5% and 4 at −2.5% to correct for feeder variations.
- Indoor NEMA 2 ventilated cabinet; floor or wall, upright-only mounting.
- UL Listed and compliant with 10 CFR Part 431 (2016).
Specifications
Technical Specs
| Type | General purpose, ventilated dry-type transformer |
| kVA Rating | 75 kVA |
| Phase / Frequency | 3-phase / 60 Hz |
| Primary Voltage | 480V delta |
| Secondary Voltage | 240V delta with 120V midtap |
| Temperature Rise | 150 °C (220 °C insulation system) |
| Sound Level | NEMA ST-20 |
| Taps | 2 at +2.5%, 4 at −2.5% |
Physical Specs
| Enclosure | NEMA 2, ventilated |
| Windings (Coil Material) | Aluminum |
| Mounting | Floor or wall, upright only |
| Frame | FR942 |
| Dimensions (H×W×D) | 43 in × 30.5 in × 24 in |
| Weight | 576 lb |
| Weathershield (optional) | WS59 |
Performance & Compliance
| Efficiency | Meets DOE 2016 (10 CFR Part 431) |
| Certification | UL Listed |
| Catalog / UPC | V48M22T7516 / 786680175701 |
| Warranty | 1 year from installation or 18 months from shipment (whichever first) |
| Wiring Connection | 282B |
Application Examples
- Step-down from 480V distribution to 240/120V loads in shops, warehouses, and campuses
- Feeding panelboards, lighting, and receptacle circuits requiring both 240V and 120V
- General commercial/industrial power where indoor, ventilated transformers are preferred
- Projects needing voltage correction via ±2.5% taps
Installation Tips
- Mount upright only on floor or wall; provide clear airflow around the ventilated enclosure.
- Select primary tap settings to match actual feeder voltage before energizing.
- Bond and ground per NEC; land secondary midtap correctly when 120V loads are served.
- Use indoors (NEMA 2); consider the optional WS59 weathershield if specified conditions require added protection.
Frequently Asked Questions
Q: What are the input and output voltages?
The primary is 480V delta; the secondary is 240V delta with a 120V midtap for single-phase loads.
Q: Is this transformer indoor or outdoor rated?
It has a ventilated NEMA 2 indoor enclosure.
Q: Can it supply both 240V and 120V?
Yes. The 120V midtap supports single-phase 120V loads while serving 240V three-phase loads.
Q: What efficiency standard does it meet?
It complies with DOE 2016 (10 CFR Part 431) efficiency requirements.
Q: What are the adjustment taps?
There are 2 at +2.5% and 4 at −2.5% on the primary for voltage correction.
Q: How loud is it?
The sound level follows NEMA ST-20 limits for dry-type transformers.
Q: What is the temperature rise and insulation class?
150 °C temperature rise with a 220 °C insulation system.
Q: How is it mounted?
Floor or wall mounting, upright only, with clear ventilation space.
