Significant Savings in Space – bdtronic counts on Murrelektronik’s MICO and Emparro power supply units


When bdtronic GmbH developed a new concept for the successful B5090 mixing and dispensing machine, the aim was to create a more compact design. And space had to be saved in the control cabinet, too. Using Murrelektronik’s Emparro power supplies combined with MICO was an important contribution in this project.

Bdtronic GmbH is located in Weikersheim in the south of Germany. The machine building company has many years of experience in process and automation. Bdtronic’s machines and systems are used in many industries, for example in the automotive industry, in the electrical and electronics industry, in the filter industry, in medical technology, in the aerospace industry or in food and beverage technology.

An important business area of bdtronic is developing and producing machines and process solutions for dispensing reactive resins and material preparation. These systems are built in a modular design and can be adapted to the users’ specific requirements.

The fully automatic lean dispensing cell B5090 is an efficient system for processing components in batch production with liquid to paste-like reactive resins. A high level of automation ensures an application of consistent quality and high productivity. In the course of reengineering, bdtronic’s designers aimed to find a more compact design for the machine.

This was a challenge for the technicians from electrical engineering, because due to the machine’s smaller dimension the control cabinet should also be smaller. However, the identical technical components had to be housed in this limited space. This meant that every single millimeter mattered.

Therefore, the electronics engineers decided to use Murrelektronik’s Emparro power supply units. They supply the same amount of power as the units used before. However, with a width of 85 millimeters (the 20 A unit) or 65 millimeters (the 10 A unit) they are clearly smaller. Due to their high efficiency (up to 95%), Emparro power supplies generate only a very low heat loss. Therefore, not much safety distance is required.

Bdtronic uses the intelligent VDC current monitoring system MICO Basic to protect the cables. Four channels that used to be protected with individual circuit breakers are now monitored by an only 35 millimeter wide cabinet component. And in the event of overload they are safely switched off in a channel-specific way. Signal contacts that require extra space when circuit breakers are plugged together are already integrated in MICO Basic.

In the end there is a total saving in space on the cabinet’s DIN rail of 85 mm (total width 185 instead of 270 millimeters). That’s why Murrelektronik’s components made an important contribution in reducing the amount of space required. And there are other positive “side effects”: The integrated push in terminals require considerably less wiring efforts. Emparro’s high efficiency reduces the energy costs. MICO’s integrated LEDs make sure that the current load of the individual paths can be checked at a glance. This makes it possible to early counteract downtime.


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