All of your applications have one thing in common they need power. From HVAC to factory controls from machinery to robotics you need a power supply that meets all your requirement for wattage voltage and approvals but still fits in your design. Finding all that in a single package can be a challenge. The solution is B&B Electronics' complete line of switching technology power supplies. No load power consumption less than 0.75W on 20-60W models. Check the features. Check the prices . You'll find one to meet your needs.