Do not waste any more time searching for transformers and give us a call today!
We offer a wide variety of high-quality electrical transformers to meet all your electrical power needs. We have Pole mounted, Pad mounted, Submersible and Substation Transformers in different rated capacities and voltages.
▸ Pole mounted Transformer
▸ Pad mounted Transformer
▸ Dry-type Transformer
▸ Submersible Transformer
▸ Substation Transformer
▸ Power Transformer
Years of experience enable us to have an optimized supply chain for the timely delivery of the equipment we sell.
Immediate delivery of J and K factor Transformers. We have strong partnerships with special equipment manufacturers. Approach the experts.
At SUMIJAL, we have immediate equipment delivery so that you can get your transformers at the time you need them. In addition, we will find the best technical-economic solution to meet all your electrical energy needs with the best quality and the best customer service.
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We have a wide range of transformers in various rated capacities and configurations, all in stock and ready to be delivered. This allows us to reduce lead time and swiftly fulfill the needs of the electrical sector.
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Our team is comprised of Engineers with extensive electrical transformers experience. We help you choose the right transformer for your project, taking care of every electrical and regulatory requirement.
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We work hand in hand with reliable and certified manufacturers, ensuring quality, support and access to customized options when your project requires an electrical Transformer with specialized specifications
01
We have a wide range of transformers in various rated capacities and configurations, all in stock and ready to be delivered. This allows us to reduce lead time and swiftly fulfill the needs of the electrical sector.
02
Our team is comprised of Engineers with extensive electrical transformers experience. We help you choose the right transformer for your project, taking care of every electrical and regulatory requirement.
03
We work hand in hand with reliable and certified manufacturers, ensuring quality, support and access to customized options when your project requires an electrical Transformer with specialized specifications









Type of Electrical Transformers
Pole mounter, substation, pad mounted, submersible, conventional dry-type and encapsulated dry-type transformers.
KVA Capacity
KVA Distribution (10 to 500KVA)
KVA Power (750KVA to 10MVA)
If you need to purchase distribution and power transformers, it is important to identify: Type of Transformer, Capacity (kVAs) and Primary/Secondary Voltages. We work with the most prestigious market brands.
If you need to purchase medium-voltage electrical transformers, it is important to identify: Type of Transformer, Capacity (kVAs) and the most prestigious market brands.
The capacity of a Transformer is measured in kilovolt-amperes (kVAs). This measurement indicates the maximum load the transformer can handle without overheating or damaging. It is recommended that the load connected to the transformer is 80% of its nominal capacity.









At SUMIJAL, we have a specialized technical-commercial team that understands the importance of every detail in your electrical project. We take advice seriously: we do not just sell transformers, but also seek to give you the most appropriate solution from our experience, knowledge and commitment. Each member of our team brings their experience in the field to accompany you with confidence and clarity throughout the process.
A Medium-Voltage Transformer is an electrical Equipment that is used to modify the voltage levels in the electrical power distribution.
You need a medium voltage transformer to tailor electrical energy to the needs of your specific company or project.
The following factors shall be considered: Load Capacity, Transformer Ratio, Energy Efficiency, Safety Regulations, Budget, among others.
The lifespan of a medium-voltage transformer depends on many factors, but on average it can last between 20 and 30 years, as long as it has been installed correctly and proper preventive maintenance is carried out.
If you need a medium voltage transformer urgently, the most effective course of action is to contact a SUMIJAL sales executive to offer you a transformer for immediate delivery.
If you encounter technical issues with your Medium-Voltage Transformer, the most effective course of action is to contact SUMIJAL support area to quote repair and preventive maintenance services. It is important as well, to follow the safety regulations and avoid tampering the transformer if you are not an expert.
Medium Voltage Transformers must comply with the Safety Standards established by the Regulatory Bodies, such as the IEC, ANSI, and Mexican regulations.
SUMIJAL provides support with preventive maintenance services, repair, technical advice, sale of spare parts/accessories and trainings, among others.
The decision depends on the type of load to be used. Given a Three-Phase Load, it is needed a Three-Phase Transformer. Given a Single-Phase Load, it is needed a Single-Phase Transformer.
The choice of Transformer type depends on the application requirements such as load capacity, budget, safety regulations the environment where the Transformer will be installed. Our technical team will support you to take the best decision.
SUMIJAL is a company specialized solely in the sale and repair of Electrical-Transformers. We also ensure that our Transformers comply with the Safety and Energy-Efficiency established by Regulatory Bodies.