A wide variety of industrial systems, including discrete and process manufacturing equipment, renewable energy systems, telecommunications and IT infrastructure, require a stable and reliable supply of electricity. The power supply unit (PSU) provides this function by receiving the voltage input (AC or DC) and converting it into the form and voltage output required for system operation.
PSU and DIN rail converter condition requirements
Today's AC/DC converter must be safe, economical, energy efficient, reliable and much smaller than previous products. In addition to handling high inductance or high capacitance load, industrial grade AC/DC power converter must also withstand serious AC input surge generated by heavy mechanical switch. They also need to be adapted to a wide range of operating temperatures and input voltages.
DIN rail PSUs can supply power to relays, actuators, valves and monitoring/control systems to meet these conditions.
The power converter is mounted on DIN rails, a standardized metal channel that can be cut into convenient lengths and bolted to a rack or wall (Figure 1).
Typical DIN Rail Mounting Picture
Figure 1: Typical DIN rail installation (source: RECOM)
Although the DIN rail PSU offers many advantages, its operating conditions require an additional set of special features. They require a long service life because they typically operate in continuous operation mode, even when the line is shut down. They also require high efficiency at load and idle to save energy and minimize internal heat emissions. They also require protection against under - and over-voltage surges, power surges, short circuits, overloads and overheating.
RACPRO1 Series Chassis Mounted LED AC/DC Power Supply is an industrial DIN rail PSU from RECOM Power, which can meet the above functions and more requirements. Its operating temperature range is - 40 ° C to+70 ° C with full power output up to+60 ° C and 150% power increase for 5 seconds. Due to the low no-load power consumption, their energy consumption in standby is still very small. According to different power output of power supply, the no-load power consumption is between 1 and 3 watts.
Other Benefits of the DIN Rail System
Standardized installation of DIN rails allows fast and easy assembly, because the PSU only needs to be clamped on the rails without any tools. DIN rails save space and allow design engineers to install a large number of standard size equipment densely in tight areas.
In addition, DIN rails have evolved over the years to accommodate changing dimensions of electrical components. The width and dimensions of the slots suit today's various PSUs, which means that the design engineer can easily select the PSUs needed to configure complex systems and install them in standardized spaces. In addition, DIN rails allow different types of components to be mounted together, so you can efficiently configure power supplies for multiple machines, usually on the same metal rail.