Power supply
& Relays

Reliable power, control and protection

Power supplies & relays are the foundation of all electronic and electrical systems. The right solutions for power supply, conversion, control and protection are crucial for operational reliability, energy efficiency and long life of electronics, machines and installations. Swelex offers a wide and carefully selected range of power supply solutions and relay components for industrial, commercial and demanding applications. Our products are used in everything from control systems and automation to energy, telecoms and medical technology.


AC/DC genset

Converts alternating current (AC) to stable direct current (DC) for electronics and industrial systems.

  • Stable and efficient AC to DC conversion
  • Wide power and voltage range
  • Compact and energy-efficient designs
  • High reliability in demanding environments
  • Available as standard products and customised solutions


DC/DC converter

Efficient conversion of DC voltage between different voltage levels in electronic systems.

  • Stable voltage regulation in DC systems
  • Compact solutions for embedded systems
  • High efficiency and low energy loss
  • Wide range of insulated and non-insulated models
  • Used in industry, telecoms, automotive and defence


Relays & switch components

Components for safe control and isolation of electrical circuits.

  • Electrical isolation between control and power circuit
  • Reliable control of loads
  • Wide range of electromechanical and solid state relays
  • Long lifetime and high reliability
  • Used in automation, industry and control systems


Battery & UPS solutions

Ensures continuous power supply in case of power failure or unstable mains voltage.

  • Backup power in case of power cuts
  • Stable operation of critical systems
  • Solutions for industry, IT and automation
  • Battery backup systems
  • Improved reliability and system availability


Energy monitoring & management

Systems to measure, analyse and optimise energy use.

  • Real-time monitoring of energy consumption
  • Efficient temperature and climate control
  • Identifies energy losses and inefficient operation
  • Energy efficiency and cost savings
  • Integrable solutions for smart buildings

FAQ - Frequently asked questions

How do I choose the right power supply?

  • The choice depends on voltage, output voltage, power requirements, environmental requirements and possible certifications. Swelex is happy to help with dimensioning and product selection.

 

When are DC/DC converters needed instead of AC/DC?

  • DC/DC converters are used when the voltage is already DC and needs to be adapted, isolated or further stabilised.

 

Why is surge protection important?

  • Surge protection prevents damage to electronics in the event of voltage spikes and disturbances, increasing reliability and reducing service costs.

 

Can you deliver complete solutions?

  • Yes, Swelex can combine power supplies, relays, protection and monitoring into complete system solutions.

Any questions?

You are welcome to contact us:


Delta Electronics offers innovative solutions for industrial automation, medical equipment and LED lighting. As a market-leading manufacturer
of power supplies, Delta has a wide product range, including DIN rails, panel-mounted units and LED drivers. With a strong focus on research and development and a global presence, Delta delivers reliable and efficient power solutions for a sustainable future.


LPA Group is a leading UK manufacturer of connectors, LED lighting and component solutions. With roots dating back to the 19th century, the company has a long track record of developing products with high reliability, low maintenance and long life. LPA is ISO 9001 certified and focuses on delivering innovative and cost-effective solutions, even for demanding environments. Their products are mainly used in the railway, aerospace, industrial, infrastructure and defence sectors.

Sensata Technologies is a leader in industrial technology, developing sensors, control units and electrical protection components. With over 100 years of experience, they offer customised solutions that help customers in the automotive, aerospace, industrial and maritime sectors make products safer, cleaner and more efficient.

 

Heatit Controls specialises in smart heating solutions, including Z-Wave and WiFi thermostats that provide efficient and user-friendly temperature control. With a focus on energy efficiency and innovation, Heatit products integrate seamlessly into modern smart home systems.