# Eaton Cooper Power 2500 kVA 34.5/0.48 kV Dead-Front Pad-Mounted Transformer

> Eaton Cooper Power 2500 kVA dead-front pad-mounted transformer with Envirotemp FR3 fluid for outdoor commercial and data centre distribution.

> SKU: VF-EAT-PAD-2500-345 | Brand: Eaton / Cooper Power | Category: Power & Energy Equipment / Transformers / Compact Substations, Kiosks & Pad-Mounted / Pad-Mounted Outdoor Transformers

**Voltformer canonical:** https://voltformer.com/product/eaton-cooper-power-2500-kva-34-5-kv-dead-front-pad-mounted-transformer - markdown version: https://voltformer.com/product/eaton-cooper-power-2500-kva-34-5-kv-dead-front-pad-mounted-transformer.md

## Overview

Eaton Cooper Power 2500 kVA 34.5/0.48 kV Dead-Front Pad-Mounted Transformer is intended for Building-Free Safe Outdoor Ground-Mount Distribution. Configured electrical data: 2500 kVA, 34.5/0.48 kV primary/secondary voltage, 50 Hz, 3-phase, vector group Dyn11 and short-circuit impedance 5.75%. Construction: Copper (Cu-Cu); cooling: KNAN (FR3 Ester); loss class: Ecodesign Tier 2. These values support preliminary engineering selection; verify insulation levels, thermal limits, short-circuit duty, installation conditions and applicable standards against the manufacturer datasheet and the site study.

- **Application:** Building-Free Safe Outdoor Ground-Mount Distribution
- **Target industries:** University & Research Campuses, Public Parks & Mall Surroundings, Data Centers
- **Brand:** [Eaton / Cooper Power](https://voltformer.com/brand/eaton-cooper.md) - The reference for North American and global grids; Eaton Cooper Power is world leader in Envirotemp™ FR3™ natural ester liquid-insulated fire-resistant distribution transformers and Dead-Front pad-mou
- **Category:** [Power & Energy Equipment](https://voltformer.com/catalog.md) / **Transformers** / [Compact Substations, Kiosks & Pad-Mounted](https://voltformer.com/category/compact-substations-and-padmounted.md): Monolithic concrete kiosks, pad-mounted outdoor transformers and mobile emergency substations. / [Pad-Mounted Outdoor Transformers](https://voltformer.com/category/compact-substations-and-padmounted/pad-mounted-outdoor-transformers.md)

## Technical Specifications

| Property | Value |
|---|---|
| Rated power | 2500 kVA |
| Primary / secondary voltage | 34.5 kV / 0.48 kV (±2 x 2.5%) |
| Frequency / phases | 50 Hz / 3-phase - Dyn11 |
| Short-circuit impedance (Uk) | 5.75% |
| No-load loss P0 | 1.92 kW |
| Load loss Pk | 19.8 kW |
| Calculated efficiency (power factor = 1) | 99.1375% at 100% load; 99.453% at 50% load |
| Loss class | Ecodesign Tier 2 |
| Windings | Copper (Cu-Cu) - cooling: KNAN (FR3 Ester) - insulation: Class A |
| Temperature rise | 65 K - sound pressure: 52 dB(A) |
| Mass and dimensions | 4950 kg - 2150×1750×1850 mm |
| Enclosure | IP55 / NEMA 3R / Vandal-Resistant - wheel gauge: 1070 mm |
| LI / AC withstand | 170 kV peak / 70 kV rms - partial discharge: 5 pC |
| Environment | -25°C / +40°C; altitude ≤ 1000 m |
| Core steel | CRGO Laser-Treated Grain-Oriented Silicon Steel (23ZDMH85 / Baosteel B23R085) |
| Bushings / terminals | Direct Copper Busbar Terminals (Busbar Integrated / IP00-IP31) |

## Standards

- IEEE C57.12.26 / C57.12.34
- IEC 60076
- ANSI C57

## Accessories

**Included:** Dead-front 600 A bushing wells, Bay-O-Net fuse protection with current-sensing links, Envirotemp FR3 natural ester fluid, Tamper-resistant cabinet enclosure
**Optional:** Two-position loadbreak switch, Secondary breaker, Sudden pressure relay

## Official sources

- https://www.eaton.com/us/en-us/catalog/transformers/three-phase-pad-mounted-transformer.html
- https://www.eaton.com/content/dam/eaton/products/transformers/three-phase-pad-mounted-distribution-transformers/ca202003en-three-phase-pad-mounted-transformer-catalog.pdf
- https://www.eaton.com/

- **Source scope:** manufacturer-family
- **Last reviewed:** 2026-09-13

Manufacturer family/application source. Eaton Cooper Power documents three-phase pad-mounted compartmental-type transformers up to 10 MVA and 35 kV. Verify exact dead-front bushing options, BIL, temperature rise and oil containment with Eaton. Exact order code, guaranteed losses, dimensions, insulation level, cooling stage, winding material and project options must be confirmed with the OEM before procurement or an SLD study.

## Pricing & Logistics

- Pricing type: RFQ (On Request) - Indicative range: $26,500 – $31,000 USD
- Delivery time: 2–8 weeks (may vary depending on technical configuration, factory capacity and destination) - Warranty: 36 months
- Compliance candidates: IEEE C57.12.26 / C57.12.34, IEC 60076, ANSI C57. Verify applicability and conformity against the exact offered model and project jurisdiction.

## RFQ

Request a formal factory quotation via Voltformer RFQ:

```json
POST https://voltformer.com/api/v1/rfq
{"companyName":"Example Energy","email":"procurement@example.com","items":[{"skuOrId":"VF-EAT-PAD-2500-345","quantity":1}]}
```

Full catalog JSON: https://voltformer.com/agent-catalog.json - OpenAPI: https://voltformer.com/openapi.json