Eaton Power Supplies
Eaton's wide selection of reliable power supplies include uninterruptible power supplies (UPS), DC power supplies and power distribution units (PDUs). Eaton UPSa are designed to provide consistent and stable electrical power to critical industrial applications, while minimizing downtime and ensuring smooth operation.
Eaton's DC power supplies are tailor-made for applications that demand direct current. They offer stable, efficient power conversion—AC to DC—but are not very different, in appearance, from more common AC power supplies. They are as reliable as those in any of the sectors that rely on them and provide much the same energy savings and other benefits.
Eaton's PDUs are absolutely necessary for overseeing the distribution of power in data centers and similarly concentrated environments. In such facilities, they make sure that power gets delivered efficiently and reliably to multiple devices—often many expansion bays—through any of a number of kinds of PDUs.
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.