Overview -2, Addendum scope -2, Reference document -2 – AMETEK SGWC Series User Manual
Page 12: General description -2, Specifications -2, Environmental characteristics -2, 1overview
1-2
M550129-20 REV D
1
OVERVIEW
1.1
ADDENDUM SCOPE
This addendum presents differences in features, specifications, and operating characteristics
between the SGA40W250D-1DAABG and SGA60W250D-1DAABG models, and the standard
SGA models.
1.2
REFERENCE DOCUMENT
Standard SG Operating Manual, M550129-01
1.3
GENERAL DESCRIPTION
The Sorensen SGWC models, SGA40W250D-1DAABG and SGA60W250D-1DAABG, are
general
–purpose power supplies that utilize an integral coldplate/heat-exchanger assembly for
liquid cooling that eliminates the necessity for supplying airflow through the unit, as required with
forced-convection air cooling. This simplifies installation by eliminating the need for clearance to
intake/exhaust air grilles, and reduces local facilities cooling requirements by lowering the heat
load presented by the power supplies. Also, since external ambient air is not drawn into the
chassis, the power supplies are protected in demanding environments from internal
contamination caused by ingestion of air-borne particulates.
1.4
SPECIFICATIONS
The following subsections provide environmental, electrical, and physical characteristics for the
SGWC Series liquid-cooled power supplies.
Note: Specifications are subject to change without notice.
1.4.1 ENVIRONMENTAL CHARACTERISTICS
1.4.1.1 LIQUID COOLING
The coolant is limited to water or a water/ethylene-glycol mixture compatible with cooling
assembly components comprised of copper and brass materials. Use of ethylene glycol as an
additive is permitted (automotive antifreeze is not allowed), but will reduce the cooling