2400V 480V Three Phase Pad Mount Transformer 300kVA Low Noise For Residential
Leilang Electric 300kVA 2400V to 480Y/277V three phase pad mounted transformer is purpose-built for residential communities, urban neighborhoods, and quiet-required commercial areas. This model features a precision-engineered low-noise structure that delivers ultra-quiet operation, making it ideal for installation close to homes and public spaces. With stable 2400V primary to 480V secondary conversion, fully sealed oil-immersed design, and compliance with North American ANSI/IEEE/UL standards, it provides safe, reliable, and neighborhood-friendly power distribution. Engineered for long service life and minimal maintenance, it combines professional voltage conversion with ultra-low noise performance to perfectly balance power supply quality and living environment comfort.
- Ultra-Low Noise – Ideal for Residential Areas
- Optimized core & winding structure to reduce vibration noise
- Quiet operation suitable for residential, parks, schools, and communities
- No disturbance to daily life, meeting strict neighborhood noise requirements
- Stable 2400V to 480Y/277V Voltage Conversion
- Professional 2400V primary / 480Y/277V secondary configuration
- Dyn1 vector group ensures stable output & neutral point stability
- Strong adaptability to unbalanced loads, no voltage drift
- High Efficiency 99.0% – DOE 2016 Compliant
- Up to 99.0% efficiency with low no-load & load loss
- Meets DOE 2016 energy-saving standards
- Reduces power waste & long-term operating costs
- UL / ANSI / IEEE Certified Quality
- UL/cUL listed for North American market access
- Full compliance with ANSI C57.12.34 and IEEE standards
- Copper windings & high-quality silicon steel core
- 65°C temperature rise, ONAN self-cooled system
- Fully Sealed & Outdoor Durable
- Hermetically sealed oil tank to prevent moisture & oxidation
- Corrosion-resistant coated steel housing
- All-weather outdoor design, no need for extra fencing
- Built-in pressure relief valve & safety protection
| Item | Value |
|---|---|
| Brand | Leilang Electric |
| Type | Three Phase Pad Mounted Transformer |
| Rated Capacity | 300 kVA |
| Primary Voltage | 2400V |
| Secondary Voltage | 480Y/277V |
| Frequency | 60 Hz |
| Vector Group | Dyn1 |
| Efficiency | 99.0% |
| Cooling | ONAN (Self-Cooled) |
| Temperature Rise | 65°C |
| No-Load Loss | 480 W |
| Load Loss | 3650 W |
| Winding Material | Copper |
| Core | Grain-Oriented Silicon Steel |
| Insulation Oil | Mineral Oil (Non-PCB) |
| Feed Type | Loop / Radial Feed |
| HV BIL | 95 kV |
| LV BIL | 30 kV |
| Certifications | UL/cUL, ANSI C57, IEEE, DOE 2016, CE, ISO |
| Warranty | 24 Months from B/L Date |
| MOQ | 1 Unit |
| Lead Time | 15–25 days |
- Residential communities & urban neighborhoods
- Commercial buildings near living areas
- Schools, hospitals, parks, and public facilities
- Small industrial & light commercial power supply
- Underground power distribution networks
- Renewable energy & energy storage systems

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