Embedded Power for
Business-Critical Continuity
NTS350 Series
350 Watts
Total Power:
Input Voltage:
# of Outputs:
200 - 350 Watts
85 - 264 VAC
120 - 300VDC
Single
Rev. 11.24.08
NTS350 Series
1 of 3
Electrical Specifications
Special Features
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Active power factor correction
IEC EN6100-3-2 compliance
Remote sense
Power fail and remote inhibit
Single wire current sharing
Built-in EMI filter
Low output ripple
5V standby
12V fan output
Overvoltage protection
Overload protection
Thermal overload protection
DC power good
Built in OR-ing diode / FET
Optional fan cover (-CF suffix)
Input
Input range
Frequency
Inrush current
Efficiency
EMI filter
Safety ground leakage
current
85 - 264 VAC (wide range)
47-440 Hz
38A max., cold start @ 25°C
85% typical at full load
FCC Class B conducted and radiated; CISPR22 Class B conducted and radi-
ated; EN55022 Class B conducted and radiated; VDE0878PT3 Class B con-
ducted and radiated.
<0.5mA @ 50/60 Hz, 264 VAC input
Output
Maximum power
Adjustment range
Standby output
Fan output
Hold-up time
Overload protection
200W for convection; 350W with 30CFM forced air
±5%
5V @ 2A regulated, ±5%
12 V @ 1A, -5 %, +7%, 0.5A for -CF version
20 ms @ 350 W load, 115 VAC nominal line at factory voltage setting
Short circuit protection on all outputs. Case overload protected @ 115-
130% above peak rating
Overvoltage protection 20-35% above nominal output
Safety
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TUV
UL
CSA
NEMKO
AUSTEL
CB
CE
60950
0950
60950
60950
60950
Certificate and report
Mark (LVD)
Embedded Power for
Business-Critical Continuity
Logic Control
Power failure
Remote on/off
DC OK
Remote sense
TTL logic signal goes high 100-500 msec after main output.
It goes low at least 4 msec before loss of regulation
Requires an external contact closure to inhibit outputs
TTL logic goes high after the output is in regulation. It goes low when there is
loss of regulation.
Compensates for 0.5 V lead drop min. Will operate without remote sense
connected. Reverse connection protected.
Rev. 11.24.08
NTS350 Series
2 of 3
Environmental Specifications
Operating temperature:
Storage temperature:
Electromagnetic
susceptibility:
Humidity:
Vibration:
MTBF demonstrated
0° to 50°C ambient derate each output as 2.5% per degree from 50° to
70°C.
-40°C to +85°C
designed to meetEN61000-4;
-2, -3, -4, -5, -6, -8, -11 Level 3
Operating; non-condensing 10% to 90% RH
Three orthogonal axes, sweep at
1 oct/min, 5 min. dwell at four major resonances 2 G peak 8 Hz to 500
Hz, operational
1M hours at full load and 25°C ambient conditions
Ordering Information
Model
Number
NTS353
NTS355
NTS358
NTS359
Output
Voltage
12V
24V
48V
54V
Maximum Load Maximum Load
Minimum
with Convection with 30CFM Peak Load
1
Regulation
2
Load
Cooling
Forced Air
0A
0A
0A
0A
16.6A
8.3A
4.2A
3.7A
29.2A
14.6A
7.3A
6.5A
33A
16.5A
8.2A
7.4A
±2%
±2%
±2%
±2%
Ripple
P/P (PARD)
3
120mV
240mV
480mV
540mV
1. Peak current lasting <30 seconds with a maximum 10% duty cycle.
2. At 25°C including initial tolerance, line voltage, load currents and output voltages adjusted to factory settings.
3. Peak-to-peak with 20 MHz bandwidth and 10 µF (tantalum capacitor) in parallel with a 0.1 µF capacitor at rated line voltage and
load ranges.
Pin Assignments
Connector
SK1
PIN 1
PIN 3
PIN 5
SK5
1
6
Line
Neutral
Ground
V1 swp
- Remote Sense
+ Remote Sense
5VSB (standby)
5VSB return
+12V
Common
Inhibit
DC power good (DC OK)
Power Fail (POK)
Mating Connectors
SK1 AC input
Molex 09-50-8051 (USA)
Molex 09-91-0500 (UK)
PINS:08-52-0113
SK2,3,4
Molex BB-124-08
PIN 1
PIN 2
PIN 3
10
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
PIN 9
PIN 10
5
SK5 Control signals
Molex 90142-0010
PINS: 90119-2110 or
Amp: 87977-3
PINS: 87309-8
Notes:
1. Specifications subject to change without
notice.
2. All dimensions in inches (mm), tolerance is
±.02”.
3. Specifications are at factory settings
4. Mounting maximum insertion depth is 0.12”.
5. Warranty: 2 year
6. Weight: 2.5 lb. / 1.13 kg.
Astec Connector Kit #70-841-022 includes all of the above
Adjustment Potentiometers
P1
+V1 Output adjust
P3
+5VSB adjust
Embedded Power for
Business-Critical Continuity
Americas
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
Rev. 11.24.08
NTS350 Series
3 of 3
Europe (UK)
+ V OR-ing out
+ V out
Common
SK1
5
10
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
P1
United Kingdom
P3
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
1.27 (32.26)
135
-CF option
(SEE NOTE 5)
1
6
Asia (HK)
P1
Voltage
ADJ POT
P1
P3
-CF option
b
a
5.85 (148.7)
6.25 (158.7)
14/F, Lu Plaza
2 Wing Yip Street
Kwun Tong, Kowloon
Hong Kong
Telephone: +852 2176 3333
Facsimile: +852 2176 3888
For global contact, visit:
1.14 (29.1)
a b
.75 (19.1) (3X)
1.5 (38.10)
www.powerconversion.com
techsupport.embeddedpower
@emerson.com
While every precaution has been taken to ensure
accuracy and completeness in this literature, Emerson
Network Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
6.4 (2X)
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Emerson Network Power.
The global leader in enabling
business-critical continuity.
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©2008 Emerson Electric Co.
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