Siemens Energy & Automation, Inc. has introduced the space saving SITOP Modular 3-phase 24VDC/ 20A power supply. Less than half the width of previous models, the new power supply is ideal for applications demanding small footprints. Siemens SITOP Marketing Manager Kai-Uwe Bronzel says the size of the footprint has become one of the most important purchasing criteria for automation and controls components. By reducing the width from 160mm (6.3‚â€) to 70mm (2.76‚â€), the new switched mode power supply is one of the most compact power supplies available today.
The wide input voltage range from 360 VAC to 550VAC covers the most common 3-phase networks worldwide and helps the customer save even more space. Customers appreciate the advantage of additional space and cost savings of three-phase power supplies, that convert industry-standard 3-phase 480 VAC into 24 VDC without the need for additional step-down- transformers, Bronzel said.
Trouble free load start up with high inrush current — required with DC/DC converters, DC motors and solenoids — are achieved with extra power of 150% of the rated output current for up to five seconds per minute and power boost of 300% of the rated output current for up to 25 milliseconds. If a parallel connection is required, the load sharing option can be selected, guaranteeing that each of the two power supplies, set up in parallel operation, provides the loads with 50% of the required total current. Weighing only 1.2 kg (2.65 lb), the new 93% efficient power supply also offers an improved ambient temperature range from -10oC (14o F) to 60oC (140o F), without de-rating.
Additionally, optional SITOP power security components (monitoring-, backup-, redundancy-, selective circuit protection) may be added to improve safety and efficiency of critical 24 VDC load circuits.
.: Design World :.
Filed Under: Electronics • electrical, Power supplies
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