Puls has introduced a range of DIN-rail mounting switched mode power
supplies (SMPS), which not only take up 55% less panel space, but also
achieve efficiencies of up to 95%. There are five models in the new
Dimension Q-Series, three for single-phase operation (24V/3A, 24V/5A, 24V
10A) and two for three-phase operation (24V/20A, 24V/40A). The
three-phase QT20 with a typical operating efficiency of 94.8%, for
example, has a width of 65mm - a reduction of 57% in DIN-rail requirement
compared with the Puls SilverLine model that it replaces.
All Dimension Q-Series power supplies can react to load fluctuations, and
are able to deliver up to 50% additional power for 4s when required. They
also feature active power factor correction and have the ability to start
at any temperature from -40oC to +70oC. Thanks to their high efficiency,
these power supplies remain cool, ensuring a long life for the
electrolytic capacitors. Indeed, so confident is Puls in the reliability
of this new power supply range that it quotes the minimum life of each
unit at 50,000 hours and offers a three-year warranty.