# Siemens Energy

> The embodiment of German engineering excellence; Siemens Energy sets the industry standard with GEAFOL® cast-resin dry-type transformers, ester-oil network units and transmission-level autotransformers.

> Headquarters: Munich, Germany - Warranty: 3 years - Sample models below: 8 (total catalog models: 59)

**Canonical:** https://voltformer.com/brand/siemens-energy - markdown: https://voltformer.com/brand/siemens-energy.md

## Overview

The embodiment of German engineering excellence; Siemens Energy sets the industry standard with GEAFOL® cast-resin dry-type transformers, ester-oil network units and transmission-level autotransformers. Request a formal factory quotation through Voltformer. Verify applicable standards, guaranteed ratings and declarations of conformity against the exact offered-model documentation and project jurisdiction. The IEC/EN 50708 series and EU Regulations 548/2014 and 2019/1783 apply only where the transformer and market fall within their legal scope.

## Official sources

- https://www.siemensenergy.com/global/en/home/products-services/product-offerings/transformers.html

- **Last reviewed:** 2026-09-13

## Sample Models

- [VF-SIE-GEA-1000-345 - Siemens Energy GEAFOL® 1000 kVA 34.5/0.4 kV Cast Resin Dry-Type Transformer](https://voltformer.com/product/siemens-energy-geafol-1000-kva-34-5-0-4-kv-cast-resin-dry-type-transformer.md)
- [VF-SIE-FIT-1600-345 - Siemens Energy FITformer 1600 kVA 34.5/0.4 kV Synthetic Ester-Oil Network Transformer](https://voltformer.com/product/siemens-energy-fitformer-1600-kva-34-5-0-4-kv-synthetic-ester-oil-network-transformer.md)
- [VF-SIE-FIT-SOL-3150-35 - Siemens Energy FITformer® 3150 kVA 34.5/0.8-0.8 kV Ester-Oil Solar Transformer](https://voltformer.com/product/siemens-energy-fitformer-3150-kva-34-5-0-8-0-8-kv-ester-oil-solar-transformer.md)
- [VF-SIE-GEO-RECT-2000-20 - Siemens Energy GEAFOL Neo 2000 kVA 20/0.48 kV Cast-Resin Rectifier Transformer](https://voltformer.com/product/siemens-geafol-neo-2000-kva-20-kv-rectifier-transformer.md)
- [VF-SIE-SVC-300M-400 - Siemens Energy SVC PLUS 300 MVAr / 400 kV Coupling Transformer](https://voltformer.com/product/siemens-energy-svc-plus-300-mvar-400-kv-coupling-transformer.md)
- [VF-SIE-MOB-30M-230K - Siemens Energy Mobile Substation 30 MVA 230/13.8 kV](https://voltformer.com/product/siemens-energy-mobile-substation-30-mva-230-kv.md)
- [VF-SIE-GEO-WIND-3400-345 - Siemens Energy GEAFOL Wind 3400 kVA 34.5/6/0.69 kV Three-Winding Transformer](https://voltformer.com/product/siemens-geafol-wind-3400-kva-three-winding-transformer.md)
- [VF-SIE-MOB-50M-245K - Siemens Energy Mobile Substation 50 MVA 245/33 kV](https://voltformer.com/product/siemens-energy-mobile-substation-50-mva-245-kv.md)

## RFQ

Use the family-specific search/get tools in [the tool reference](https://voltformer.com/tool-reference.md) to choose an exact SKU or ID. RFQ submission requires authentication, a complete draft and explicit user confirmation; unknown project inputs must not be invented.