Power Supply Unit

Power supply units rectify and regulate line voltage down to DC, which is what separates them from a transformer: electronics, sensors and I/O cards need direct current at a tightly held voltage, not a stepped-down AC secondary. Controls teams pick one when instrumentation needs DC a transformer cannot give it, when a failed unit has taken every sensor offline at once, or when ripple on a cheap supply has been upsetting analog readings.

 

As an authorized electrical distributor for multiple manufacturers, we stock power supply units across competing lines, in a full range of output voltages, current ratings and mountings, so you can match the rail voltage and current the panel needs, compare current ratings and mountings brand to brand, and size a supply with headroom for what gets added next. Same-day shipping on in-stock items ordered before 2pm local time.