RTW281R8 TDK Corporation, RTW281R8 Datasheet - Page 9

• Manufacturer Part Number: RTW281R8
• Description: POWER SUPPLY IND 28V 1.8A 50.4W
• Manufacturer: TDK Corporation
• Series: RTWr

Specifications of RTW281R8

• Voltage - Output: 28V
• Number Of Outputs: 1
• Power (watts): 50W
• Applications: Commercial
• Power Supply Type: Switching (Open Frame)
• Voltage - Input: 85 ~ 265VAC
• Mounting Type: Chassis Mount
• 1st Output: 28 VDC @ 1.8A
• Size / Dimension: 4.88" L x 0.87" W x 3.23" H (124mm x 22.1mm x 82mm)
• Power (watts) - Rated: 50.4W
• Operating Temperature: -10°C ~ 71°C
• Efficiency: 85%
• Approvals: CE, CSA, cUL, EN, UL
• Line Regulation: 0.2%
• Load Regulation: 0.4%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: RTW28-1R8

RTW100W Type
L TYPE(WITHOUT TOP-FACING TERMINAL BLOCK COVER)
SHAPES AND DIMENSIONS
• Do not insert installation screws more than 6mm into the power supply.
TERMINAL DESIGNATIONS AND FUNCTIONS
Terminal No. Designations and functions
1
2
3
4
5
6
7
8
9
• All specifications are subject to change without notice.
8
6
5
4
3
2
1
Label
P.W.B.
Frame
+RC
–RC
+S
–S
G
N
+
–
L
AC input terminal(N)
AC input terminal(L)
Frame ground terminal(G)
Remote ON-OFF terminals(+RC, –RC)
Remote sensing terminals(+S, –S)
DC output terminal(+, –)
Output voltage adjustment trim(V.
Operation indicator LED(Green)
Remote ON-OFF switch
7
+S
+
–
–S
+RC
–RC
G
L
N
4max.
Short block
( 7 )
Output voltage ON indicator
9
ADJ
)
Output voltage adjustment trim
Connect to AC.100 to 120V or AC. 200 to 240V input line.
Connect to AC.100 to 120V or AC. 200 to 240V input line.
Connect to earth ground. This is connected to the case.
The output voltage can be turned on and off from an external source by inputting the external signal
between these terminals. RC terminals are floating.
These terminals are used to compensate voltage loss from the output terminal to a load.
DC output terminals are shorted with a metal bar.
Connect to load.
Adjusts output voltage.
Turn clockwise to increase the voltage.
This Green LED becomes indicated when voltage is output.
Turn the remote on/off switch located at the center of the power supply to "Y" (clockwise) to enable
the remote control.
7-M3×6L
Short piece
121.7±0.5
171.5
2-M4×6L
135.3±0.5
Label
Label
Remote control switch
Label
2-M4×0.7
2-M3×0.5
20.5
7.6
Insulation block
±1mm : without specified dimensions
004-02 / 20060214 / ea111_rtw.fm
Dimensions in mm
(9/19)