RTW482R1 TDK Corporation, RTW482R1 Datasheet - Page 18

• Manufacturer Part Number: RTW482R1
• Description: POWER SUPPLY IND 48V 2.1A 101W
• Manufacturer: TDK Corporation
• Series: RTWr

Specifications of RTW482R1

• Voltage - Output: 48V
• Number Of Outputs: 1
• Power (watts): 100W
• Applications: Commercial
• Power Supply Type: Switching (Open Frame)
• Voltage - Input: 85 ~ 265VAC
• Mounting Type: Chassis Mount
• 1st Output: 48 VDC @ 2.1A
• Size / Dimension: 6.3" L x 0.98" W x 3.23" H (160mm x 24.9mm x 82mm)
• Power (watts) - Rated: 100.8W
• Operating Temperature: -10°C ~ 71°C
• Efficiency: 88%
• 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: RTW48-2R1

Characteristics, Functions, and Applications
REDUNDANT (N+1) OPERATION(300W)
Connect diodes to output terminals of the power supplies before
their redundant operation. Equalize the impedance of the load
wires coming from each power supply. Use a twisted wire or a
shielded wire for the wiring from CB and –S (shielded wire for –S).
POWER FAILURE SIGNAL (300W)
When the output voltage becomes less than approx. 80% of the
selected voltage, the output signal is open.
Sink current: 50mA max.
Collector emitter voltage: 40V max.
±P/F terminals are insulated from AC input terminals and the DC
output terminals.
Insulation between the ±P/F terminals and the output conforms to
an insulation resistance for an output to the ground of the common
specifications. Insulation between AC input terminals and ±P/F ter-
minals conforms to an insulation resistance for an input terminal to
an output terminal of the common specifications.
OUTPUT FORMAT
• All specifications are subject to change without notice.
V.
–
ADJ
CN3
CN2
CB
+
CB
–S
–S
+P/F
–P/F
V.
–
CN1
ADJ
Load
CN3
CN2
CB
+
–S
CB
–S
OTHER INSTRUCTIONS
24V output models of 150W and 300W types are correspondent to
peak current.
Peak current on RTW24-6R3C(150W)
Peak current available for RTW24-6R3C. The conditions shown
below applied for more than rated output current.
CE MARKING
This product conforms to Standard EN60950-1 following the provi-
sions of Low Voltage Directive 73/23/EEC and 93/68/EEC.
However, if this power supply has been slightly modified per cus-
tomer order and is a variation version of the original model, this
product will not have the CE Mark attached to it unless it is clearly
stated as applicable in the Product Specifications.
INSULATION AND WITHSTAND VOLTAGE TESTS
The insulation and withstand voltage tests may cause deteriora-
tion. Care must be taken for execution of the tests. The potential
must be equal among input, output, and FG (frame ground) termi-
nals. It is preferable to use testers which gently start up at the test-
ON and automatically discharge charging energy at the test-OFF.
Manual discharging after the tests should be through a resistor
around 100k
ance. It may cause deterioration.).
In any case, take full countermeasures for electric-shock preven-
tion.
( 1 ) Conditions of time
( 2 ) Conditions of peak current
( 3 ) Conditions of effective current
( 4 ) Conditions of effective power
P
t
I
(output RMS current×output voltage)
1
DI
10s
1
151.2W
10A
2
+(1–D)I
t
Ω
to 1M
2
2
T
Ω
6.3A
(Do not perform discharging at low imped-
004-02 / 20060214 / ea111_rtw.fm
D=(t/T)
I
1
I
2
(18/19)