Embedded Power for
Business-Critical Continuity
NLP250-DC Series
Single Output
Total Power:
250 W
Input Voltage:
38 - 60 Vdc
# of Outputs:
Single
Rev.4.20.09_129
NLP250-DC Series
1 of 4
Special Features
• -48 Vdc Input
• 250 W on main channel with
forced air
• Low profile fits 1U applications
• U-Channel for maximum
thermal performance
• 5 V standby output
• 12 V fan output
• Integrated control and
monitoring features
• Overcurrent, overvoltage and
overtemperature protection
• Compliance to EN55022-B
conducted noise standard
• RoHS compliant
• 2 year warranty
Electrical Specifications
Input
Input voltage range:
Input surge current:
Input voltage protection:
Input current:
Input fuse:
-48 Vdc Nominal
60 Vdc (cold start)
Reverse polarity protected
-48 Vdc @ 250 W
UL/IEC127
200 LFM forced air
Main output
Auxiliary outputs
-48 Vdc Input
Main output
50 - 100%
Step at 0.5 A/µs
Main output
Cyclic operation
Singles
5 Vsb
12 V (fan)
38 - 60 Vdc
40 A max.
7A
T6.4 AH, 250 Vac
250 watts
± 2.0%
± 5.0%
2.0 s max.
5.0% or 250 mV
max. dev., 1 ms max
recovery to 1%
±0.04%/°C
115%, ± 5%
Continuous
0 A
5 V @ 1.0 A
12 V @ 1.5 A
Output
Maximum power:
Total regulation:
(line and load)
Turn-on delay:
Transient response:
Temperature coefficient:
Overvoltage protection:
Short circuit protection:
Minimum output current:
Auxiliary outputs:
(See Note 8, page 3)
Safety
•
•
•
•
•
•
VDE0805/EN60950-1
IEC950/IEC60950-1
UL/cUL 60950-1
CSA-C22.2 60950-1
CB Certificate
CE Mark (LVD)
All specifications are typical at nominal input, full load at 25
°
C unless otherwise stated
Embedded Power for
Business-Critical Continuity
Rev.4.20.09_129
NLP250-DC Series
2 of 4
EMC Characteristics
(5)
Conducted emissions:
EN55022, FCC part 15
CISPR22, GR-1089
Core, ETSi 300-386
EN61000-4-2
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
-48 Vdc Input
-48 Vdc @ 250 W
Input/output
Input/chassis
Level B
ESD air:
ESD contact:
Radiated immunity:
Fast transients:
Surge:
Conducted immunity:
Level 3
Level 3
Level 3
Level 3
Level 3
Level 3
4 ms @ 250 W
85% typ.
1500 Vdc
1500 Vdc
650g (22 oz)
General Specifications
Hold-up time:
Efficiency:
Isolation voltage:
Safety approvals (see note 6, page 3):
Weight:
MTBF (@25 ºC):
Telcordia SR-332
UL/cUL UL60950-1, VDE EN60950-1, CAN/CSA22.2 No. 60950-1
317,000 hours min.
Environmental Specifications
Thermal performance:
Operating ambient,
(See derating curve)
Non-operating
0 °C to 50 °C ambient,
200 LFM forced air
250 LFM with cover
0 °C to 50 °C ambient
Convection cooled
50 °C to 70 °C ambient,
Convection cooled
Relative humidity:
Altitude:
Vibration:
Shock:
Non-condensing
Operating
Non-operating
5-100 Hz
Per GR-63-Core
Derate linearly
to 50% load
Per GR-63-Core
10,000 feet max.
30,000 feet max.
Per GR-63-Core
Zone 4
175 W
-40 °C to +85 °C
250 W
-5 °C to +70 °C
Embedded Power for
Business-Critical Continuity
Rev.4.20.09_129
NLP250-DC Series
of 4
Ordering Information
Output Voltage
12 V
Notes
Output Current
Min
0 A
Max (free air)
(1,4)
Max (forced air)
(2,4)
14.6 A
21 A
Ripple
(3)
120 mV
Total Regulation
± 2.0%
Model Numbers
(9, 10)
NLP250N-48S12J
1
Free air convection. Maximum continuous output power not to exceed
175 W. Refer to Figure 1 for the derating curve.
2
200 LFM (250 LFM with cover) forced air cooling from the longer side.
Maximum continuous output power not to exceed 250 W.
3
Figure is peak-to-peak for room temperature rating. Output noise
measurements are made across a 20 MHz bandwidth using a 6 inch twisted
pair, terminated with a 10 µF tantalum capacitor and a 0.1 µF ceramic
capacitor.
4
CAUTION: Allow a minimum of 1 second after disconnecting line power
when making thermal measurements. For optimum reliability no part of the
heatsink should exceed 115 °C and no semi-conductor case temperature
should exceed 120 °C.
5
No external filtering required during conducted emissions testing but some
applications may require additional filtering to achieve system compliance.
Compliance with radiated EMI specifications may require mounting in a
suitable enclosure.
6
This product is only for inclusion by professional installers within other
equipment and must not be operated as a stand alone product.
7
5 V sb (standby) output is available whenever DC input is present, regardless
of remote ON/OFF signal status. 12 V (fan) present when main output is
present.
8
The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant.
9
NOTICE: Please contact your local Emerson representative or visit our website
at http://www.PowerConversion.com.
Mechanical Drawing
J1 2
1
3
1
TER2
TER1
J2
1.50
7.00
.75
5.50
4 x 6-32 UNC 2-B
3/16 MAX DEPTH
.75
2.50
4.00
Embedded Power for
Business-Critical Continuity
Derating Curve
250 W
DERATING CURVE Output Power (Watts)
Americas
Output Power (Watts)
200 LFM (1.0 m/s)
FORCED AIR COOLING
175 W
125 W
NATURAL FREE AIR
CONVECTION COOLING
87 W
75 W
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
Rev.4.20.09_129
NLP250-DC Series
4 of 4
Europe (UK)
0W
0C
10 C
20 C
30 C
40 C
50 C
60 C
70 C
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
Connector and Mating Connector Types
Connector
J1
J2
TER1
TER2
Asia (HK)
Type
Molex 10-84-5030 (4202 series)
Molex
Terminal block
Mating Connector Type
Molex 50-84-1035 (42021 series) or equivalent with Molex
02-08-1001 (42024 series) or equivalent crimp terminals
Molex 90142-0010
Molex 90119-2110 crimp terminals
Terminal block contains #6-32 screw with clamp
washer suitable for wire size 12-22 awg (0.5-2.5 mm
2
).
Max Torque tp 1.36 Nm (12 in.lb)
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:
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.
Pin Connections
J1
Pin 1
Pin 2
Pin 3
-48 Vdc
Ground
Return
N/C
-VO Remote Sense
+VO Remote Sense: Load compensation for 0.2 V to 0.5 V drop at load (sense point)
5 V Standby
Signal Common (RTN): 5 V standby and 12 V fans
12 V DC Fan Voltage
Signal Common (RTN): 5 V standby and 12 V fans
Inhibit: A closed contact (Low) will shut down PSU main output within 200ms (typical)
DC Power Good: Vo > -8% of nominal = Logic HI, Out of Regulation = Logic Low
+12 V
GND
J2
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
TER1
TER2
Emerson Network Power.
The global leader in enabling
business-critical continuity.
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