Siemens Energy & Automation Sitop Modular 3-phase 24V dc / 20 A power supply offers optional power security components, including selective circuit protection, to improve safety and efficiency.

Wide input voltage range (360 to 550 V ac) covers the most common three-phase networks worldwide and helps the customer save more space. Unit converts industry standard three-phase 480 V ac into 24 V dc without added step-down transformers. Trouble-free load start up with high inrush current—required with dc / dc converters and direct current motors and solenoids—is achieved with extra power of 150% of the rated output current for up to 5 msec and power boost of 300% of the rated output current for up to 25 msec. 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, provides the loads with 50% of required total current. Weighing 2.65 lb., the 93% efficient power supply also offers improved ambient temperature range, from 14 to 140°F, without de-rating. www.sea.siemens.com Siemens Energy & Automation Inc.