Power Supplies
Discover our wide selection of power supplies from leading manufacturers. Choose from a variety of features, including input voltage, current and mounting type to find a power supply to suit your needs.
Our range includes switching power supply and linear power supply options, giving customers the flexibility to select the most compatible and efficient unit for their equipment or machinery.
Shop power supplies today and get free delivery on all orders over £50 (excluding VAT). Our team can provide solutions for both industrial and domestic applications, helping to protect your system and ensure uninterrupted operation.
Boxed Power Supply, 230V, 12V, 1.5A, IP20
DC Power Supply 230vac - 24vdc - 3.1A
DC Power Supply 230vac - 24vdc - 10A
AC/DC DIN Rail Power Supply, 24VDC, 10A, 240W
Ultra Slim DIN Rail Power Supply, 60W, 24V, 2.5A
AC/DC DIN Rail Power Supply, 24VDC, 4.17A, 100W
DC Power Supply 230vac - 24vdc - 5A
Contactors
Control Stations & Push Buttons
DIN Rail
DIN Rail Terminals
FAQs
What is a power supply used for?
A power supply is used to provide straight power to a variety of devices, from industrial control equipment to consumer electronics. It ensures consistent output power, even during a peak load, allowing connected devices to operate effectively. Modern power supplies are designed with high efficiency levels to reduce energy waste, while also including safety features such as built-in fuses to protect equipment from electrical faults. They are essential for maintaining reliable performance across both industrial and domestic systems.
How does a power supply work?
A power supply unit converts mains supply electrical energy from a source, such as AC power, into a usable form like DC voltage. It regulates the DC output voltage for consistent and safe use. Modern designs focus on power supply efficiency to produce less heat and consume less electricity, which is a key advantage for both industrial automation and consumer electronics.
What is a 100% full load burn-in test?
A 100% full load burn-in test is a quality assurance process where a power supply unit is operated at its maximum power consumption capacity for an extended period. This ensures the unit can handle its rated output voltage and current reliably to prevent any issues. This test is especially important for future upgrades in demanding applications such as computers, control panels, and security systems.
What is the maximum output voltage and current for most DC power supplies?
The maximum output voltage and current for most DC power supplies vary but typically range up to 30-60 volts and 3-10 amps for general-purpose models. Specialised units such as battery chargers or AC adapters may offer different ranges, and high-power industrial models can exceed these depending on their design. These outputs must be carefully matched with the input and connection requirements of your device or installation.
What are some common features of DC power supplies?
Common features include adjustable output voltage and current, digital displays overload and short-circuit protection and multiple output channels. Many also offer programmable settings for automated testing, semi-modular designs for flexibility, and efficiency features to reduce power consumption. Other essential components often include cables, connectors, and mounting options to ensure compatibility with existing line or system setups.
What is the difference between a switching power supply and a linear power supply?
A switching power supply uses high-frequency switching to convert power efficiently, making it lighter and smaller in size. A linear power supply regulates voltage using simpler technology, providing cleaner output with less electrical noise, which can be important for sensitive equipment. Each has its own advantages, and the right choice depends on your specific solutions and installation needs.
How does an uninterruptible power supply protect equipment?
An uninterruptible power supply (UPS) provides backup power if the main electricity is lost, helping to protect critical equipment, computers, or security systems. By maintaining continuous operation, a UPS gives customers the confidence that their essential components remain active during outages or when generators switch on.
Why is power supply efficiency important?
Power supply efficiency is vital because it affects how much energy is wasted as heat. An efficient unit can deliver the same performance while reducing running costs and improving the reliability of connected machinery and automation systems. This is especially important for large-scale industrial installations.
Shop power supplies online for fast delivery or visit your nearest YESSS Electrical store to shop in person.