Founded in 1977, Manumag S.L. is based in Muel (Zaragoza). We manufacture and sell a wide range of low voltage transformers.

We specialize in manufacturing single-phase and three-phase control transformers, isolation transformers (including the ones used in medical locations), safety transformers for swimming pool lighting, single- and three-phase autotransformers, power supply units and automatic voltage regulators.

All these are made to fulfill our main commitment: to create high-quality products in accordance with European regulations so as to meet the needs and requirements of our customers.



Our company’s background and history have opened numerous markets and industries for us. Our international perspective has always remained an important challenge and goal for us, especially in the Middle East.

Our company is well-established in Europe, the Middle East, Africa and America. We firmly believe in continuous growth, which, in turn, has made it possible for us to open a new factory with a 6,000 square meter production area back in early 2007.



Quality is Manumag’s main priority and the key for our company’s success.

Each department, section and person shall be in charge of the quality of the task they perform.

MANUMAG S.L.’s main goal is to carry out our industrial activity following the company’s internal criteria as well as the external applicable regulations so as to meet our customers’ needs and requirements.

To be able to do so, we face risks and opportunities that come our way in the company’s day-to-day activity. We, therefore, rely on cooperation among the employees to ensure proper fulfillment of the goals such policy pursues.

MANUMAG S.L.’s main activity is to design and manufacture single-phase and three-phase transformers and autotransformers.

As a result, the quality objectives our company is consistently committed to are as follows:

Comply with legal requirements and regulations so as to build and cultivate customer confidence and trust.

Integrate and streamline processes, methods and instructions to systematize work, making sure our company is efficient and competitive as a result.

Develop a Quality Management System that shall detect nonconformities and their causes and subsequently implement actions for their correction.

Foster and promote motivation, competence, awareness and communication among employees in various areas of the organization as a competitive advantage necessary for the company’s own growth. Put continuous effort into focusing on high quality standards at all company levels.

Implement occupational and environmental risk prevention management system to make sure the organization is safe for its employees and is environmentally friendly.

Manumag has implemented a quality management system under ISO 9001:2015 standard, based on streamlining processes and methods. In this system we seek to motivate and train the employees, as well as raise awareness regarding environmental issues, and occupational hazards, ensuring the company’s efficiency and competitive edge.

For more information about our products, you can visit our website where you can download our general catalogue.