
Phoenix Contact Power Supplies

Phoenix Contact QUINT POWER power supplies with SFB Technology are ideal for safeguarding system availability. The power reserve enables the extension of the system as well as trouble-free start-up of difficult loads. Static boost with sustained power of up to 125% is available for system extension. Dynamic boost of up to 200% for 5 seconds enables the start-up of difficult loads. Small QUINT POWER power supplies cover 30 to 100 W power range in a compact size.
Phoenix Contact STEP POWER power supplies have been specifically designed for building automation applications. They are ideal for use in flat control panels and distribution boards. In addition to the standard industrial approvals, STEP POWER power supplies are certified for household purposes for the first time. They satisfy the most stringent safety requirements for electrical devices and are a perfect solution for domestic applications.
Phoenix Contact TRIO POWER power supplies are ideal for use in the demanding machine building environment. They have a wide temperature range (-25 degrees C to 70 degrees C), a broad input voltage range for common AC and DC grids and a comprehensive approval package with UL 508 and UL/cUL 60950. Voltage drops can be compensated by means of 24 to 28 V DC output voltage adjustment on the front. TRIO POWER power supplies are suitable for use in maritime environments (B+D). Two single-phase power supply units with output currents of 5 and 10 A can also be used on the ship’s bridge and can be used specifically for the supply of sensitive loads in accordance with EN 60954.
Phoenix Contact UNO POWER power supplies are ideal for use in compact control cabinets. The efficient technology in the compact housing covers loads from 25 W to 480 W. The 18 devices in the range cover output voltages from 5 to 48 V DC and are available in six designs. Compared to other products on the market, using the UNO POWER power supplies delivers energy savings as a result of low no-load losses below 0.3 W and optimized efficiency. With an efficiency of up to 94% at nominal load, just a small amount of electrical energy is converted into undesired heat energy.
Products
How to Select and Size a Power Supply
A power supply alters power from one type to another and ensures that the voltage being delivered is the proper level, with the right characteristics, to enable equipment to function properly.
Power rating
If a power supply is rated for 5 amps at 24 VDC, (where voltage times amperage equals total wattage) the power rating for that power supply is roughly 120 Watts. This rating is very important because if this number is exceeded, it can cause a failure of the power supply and potentially damage other hardware wired downstream or on the load side of the device. To avoid this failure is important that the power supply is sized correctly.
Sizing a power supply
To properly size a power supply, identify what devices will be reliant on the power supply and what their total power consumption will be. The sum of all power to be delivered needs to be less than the total power rating of the power supply. For example, if the devices combined for a total of 100 Watts, then a 5 AMP power supply, which is rated for up to 120 Watts, would be sufficient. However, if the sum of those devices’ total power requirement is greater than that of the power supply rating, then a different power supply should be selected. It is important to allow for a buffer or safety factor. When sizing a power supply, never select a power supply that is rated for the same amount of power as the total power requirement of all of the devices. Oversizing the power supply will allow for changes and additions that may occur in the future.