Chassis Power Supplies or Chassis Mount Power Supplies are used in a variety of applicaitons and are very basic in style. They are often called enclosed power supplies because the internal electronics are enclosed by a case (which is often vented too).
The case will have a series of threaded holes for fixing it to a base plate or other mount in order to hold the unit in place within the panel, instrument or machine which it is housed.
Simply Power Supply has a very wide range of units from 5vdc to 96vdc for sale on-line with the bulk of units being in the 12Vdc and 24Vdc catagories. The full range can be found here: Chassis Power Supply
If you have a requirement for this type of power supply, even if you just need a single unit, then please do not hesitate to give us a call or leave us a message with the contact form on the right hand side.