There is a lot of interest in connecting modern automated production lines to the Internet of Things (IoT) and Industrial IoT (IIoT), but developers need to think about how to implement reliable and energy-efficient power supplies in the tightest of spaces while staying within the ever-present budget constraints. One way to achieve this is to use DIN rail power supplies. These are designed to meet critical requirements for reliability, energy efficiency and compactness, but are not unnecessarily designed for special operating conditions, such as explosion protection. They also rarely offer functions or performance features that will probably never be needed.

DIN rail mounting system

The top-hat rail or DIN rail mounting system offers various advantages. In addition to saving space, these include tidy cabling, easy access and secure installation.

A DIN rail also offers developers the option of installing other compatible devices - from sensors to PLCs (programmable logic controllers) and, of course, power supplies - and combining them into a system.

DIN rail power supply units with 93.8 % efficiency

In response to the challenge for developers to find the right balance between requirements and budget, power supply specialist Puls has developed the PIANO PIM series. The single-phase DIN rail power supply series includes models with 36 W (24 V/1.5 A), 60 W (12 V/2.5 A and 24 V/2.5 A) and 90 W (24 V/3.8 A). The efficiency of the power supplies is 90.6 % (36 W), 91.8 % (60 W) and 93.8 % (90 W). The housing measures 90 mm x 91 mm (HxD), the width varies: the 36 W power supply measures 22.5 mm, the 60 W and 90 W models each measure 36 mm.

The DIN rail power supply units operate in a temperature range from -10 to +70˚C. For safety reasons, all outputs are galvanically isolated from the input (isolation voltage in accordance with SELV/PELV/ES1).

The user can choose between screw or push-in connections. The advantage of push-in connections is that they are both vibration-resistant and easy to handle.

The article is part of the new "Distributors Corner" series at www.computer-automation.de. In it, the distributor Digi-Key addresses topics that are frequently asked about in the support and service department. All articles will be published in both German and English.