Puls’ DIN Rail Power Supplies Promise Improved Efficiency, Reliability, and Size

Puls has released a line of new DIN-rail-mountable single- and three-phase power supplies. The PLANET line of power supplies offers load balancing, high efficiency, and reliability in a compact package.

According to Puls, the new power supplies boost reliability and lifetime by up to 30% compared to earlier models (QS and QT series). Originally demonstrated at SPS25, the PLANET power supplies can now be ordered for under 550 €.

Puls’ PLANET TP960.241 power supply for three-phase systems. Image used courtesy of Puls

PLANET DIN Rail Power Supplies

Puls has designed the PLANET series of power supplies to power loads of up to 960 W with an efficiency of 97%. The power supplies’ high efficiency means reduced operating costs and carbon emissions, making it easier to meet ESG goals.

Puls states that the new power supplies have a 30% longer lifetime compared to its earlier QS and QT models. The supply is guaranteed to run for at least 100,000 hours, with a Mean Time Between Failures (MTBF) of up to 325,000. Puls has built its new devices to be a stable, long-lasting solution that will likely last as long as the rest of the machine or automation system.

Each power supply comes with the Puls Hiccup protection mechanism, which adds an extra layer of safety in the event of overcurrent, short circuits, and other issues. A standout feature of the new power supply is its load-balancing capability. With moving machinery, the power demands are dynamic. The PLANET power supply can detect when the draw has increased or decreased and make adjustments accordingly.

Puls’ PLANET SP960.241-S power supply for single-phase systems. Image used courtesy of Puls

The PLANET power supplies also feature Puls BonusPower capability. An occasional spike, such as the simultaneous switching on of too many pumps, can wreak havoc on power supplies. With BonusPower, demands of up to 200% of the maximum load can be handled for up to 12 seconds, and the power supply can run continuously at 120% of the maximum load.

Simplifying Installation and Troubleshooting

Puls’ new line of power supplies are small, with a width down to 79 mm, depending on the model. The power supplies are also DIN-rail mountable, allowing them to fit into tight spaces. They come equipped with newly designed push terminals, meaning wires can be quickly connected without the need to fumble with a screwdriver. Furthermore, their high efficiency allows them to be fanless, limiting both mechanical and electrical noise.

Many competing power supplies have only one or two status LEDs. This can complicate troubleshooting efforts, as it may only indicate that the module is powered or that a fault exists somewhere. The three-phase PLANET power supply variants have quite a few status LEDs included in a bar graph to indicate how much load is being used by the system.

Enhancing Industrial Automation

Puls has designed its newest generation of DIN rail power supplies to source high current in both single and three-phase applications. The company has designed its devices with both the machine builder and the installer in mind. Additionally, the myriad of status lights on the three-phase variants help users identify problems at a glance without requiring a larger footprint in the control cabinet.