DS1200-3-002 Emerson Network Power, DS1200-3-002 Datasheet - Page 20

• Manufacturer Part Number: DS1200-3-002
• Description: POWER SUPPLY AC/DC 12V 1200W
• Manufacturer: Emerson Network Power
• Series: DS1200r

Specifications of DS1200-3-002

• Voltage - Output: 12V
• Number Of Outputs: 1
• Power (watts): 1200W
• Applications: Commercial
• Power Supply Type: Switching (Closed Frame)
• Voltage - Input: 180 ~ 264VAC
• Mounting Type: Chassis Mount
• 1st Output: 12 VDC @ 100A
• Size / Dimension: 11" L x 3.2" W x 1.57" H (279.4mm x 81.3mm x 39.9mm)
• Power (watts) - Rated: 1200W
• Operating Temperature: -10°C ~ 50°C
• Efficiency: 91%
• Approvals: CB, CE, cUL, EN, NEMKO, UL
• Line Regulation: ±5%
• Load Regulation: ±5%
• Input Voltage: 90 to 264V
• Output Voltage: 12V
• Input Frequency: 47 to 63Hz
• Screening Level: Commercial
• Operating Temperature Min Deg. C: -10C
• Operating Temperature Max Deg. C: 50C
• Mounting Style: Desktop
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 454-1271

Rev.10.03.30_#0.1
Radiated Emissions
DS1200-3 Series
Page 20
Unlike conducted EMI, radiated EMI performance in a system environment may differ drastically from that in a stand-alone
power supply. The shielding effect provided by the system enclosure may bring the EMI level from Class A to Class B. It is
thus recommended that radiated EMI be evaluated in a system environment. The applicable standard is EN55022 Class A
(FCC Part 15). Testing ac-dc convertors as a stand-alone component to the exact requirements of EN55022 can be
difficult, because the standard calls for 1m leads to be attached to the input and outputs and aligned such as to maximize
the disturbance. In such a set-up, it is possible to form a perfect dipole antenna that very few ac-dc convertors could pass.
However, the standard also states that ‘an attempt should be made to maximize the disturbance consistent with the typical
application by varying the configuration of the test sample.