Embedded Power for

Business-Critical Continuity

Rev.09.10.07

NLP250 Series

4 of 4

Emerson Network Power and the Emerson

Network Power logo are trademarks and

service marks of Emerson Electric Co.

©2007 Emerson Electric Co.

Emerson Network Power.

The global leader in enabling

business-critical continuity.

EmersonNetworkPower. com

AC Power

Connectivity

DC Power

Embedded Power

Inbound Power

Integrated Cabinet Solutions

Outside Plant

Precision Cooling

Site Monitoring and Services

Americas

5810 Van Allen Way

Carlsbad, CA 92008

USA

Telephone: +1 760 930 4600

Facsimile: +1 760 930 0698

Europe (UK)

Waterfront Business Park

Merry Hill, Dudley

West Midlands, DY5 1LX

United Kingdom

Telephone: +44 (0) 1384 842 211

Facsimile: +44 (0) 1384 843 355

Asia (HK)

16th - 17th Floors, 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

technicalsupport@powerconversion.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.

J4 PIN CONNECTIONS

Pin 1

+S

+Vo Remote Sense

Pin 2

-S

-Vo Remote Sense

Pin 3

LS

Load Share Signal

Pin 4

PS OFF

Remote ON/OFF signal NO

Pin 5

PS ON

Remote ON/OFF signal NC

Pin 6

SGND

Signal Common

Pin 7

PW OK

Power Good

Pin 8

5 Vsb

Stand-by Voltage

Pin 9

DC OK

DC Power Good Signal

J1 PIN CONNECTIONS

Pin 1

Ground/Earth

Pin 2

Live

Pin 3

Neutral

J2 PIN CONNECTIONS

Pin 1

+12 V

Fan Voltage

Pin 2

SGND

Return

J3 PIN CONNECTIONS

Pin 1

Vo

+Main Output

Pin 2

Vo

+Main Output

Pin 3

RTN

Main Return

Pin 4

RTN

Main Return

Connector and Mating Connector Types

Connector

Type

Mating Connector Type

J1

Molex 09-65-2058 (5273

series)void pins 2 and 4 or

equivalent

Molex 09-52-4054 (5239 series) or equivalent with

Molex 08-52-0072 (2478 series) or equivalent crimp

terminals

J2

Molex 22-23-2021 (6373

series) or equivalent

Molex 22-01-3027 (2695 series) or equivalent with

Molex 08-50-01113 (2759 series) or equivalent crimp

terminals

J3

Molex terminal block

387007504 or

equivalent

Terminal block contains #6-32 screw with clamp

Max Torque tp 1.36 Nm (12 in.lb)

J4

Molex 22-23-2091 (6373

series) or equivalent

Molex 22-01-3097 (2695 series) or equivalent with

Molex 08-50-0113 (2759 series) or equivalent crimp

terminals

DERATING CURVE Output Power (Watts)

0 C

10 C

20 C

30 C

40 C

50 C

60 C

70 C

0 W

175 W

250 W

200 LFM (1.0 m/s)

FORCED AIR COOLING

NATURAL FREE AIR

CONVECTION COOLING

87 W

125 W

75 W

24/48 V Free Air

12 V Free Air

All Models

Forced Air

DERATING CURVE Output Power (Watts)

WITH COVER

0 C

10 C

20 C

30 C

40 C

50 C

60 C

70 C

0 W

175 W

250 W

250 LFM (1.25 m/s)

FORCED AIR COOLING

NATURAL FREE AIR

CONVECTION COOLING

125 W

75 W

12 V Free Air

24/48 V Free Air

All Models

Forced Air

Figure 1: Derating Curve

Output Power (Watts)

Figure 1b: Derating Curve With Cover

Output Power (Watts)