Owner's Manual for MEAN WELL models including: NPP-750-12, NPP-750-24, NPP-750-48, NPP-750 Series 750W High Reliable Ultra Wide Output Range Battery Charger and Power Supply, 750W High Reliable Ultra Wide Output Range Battery Charger and Power Supply, High Reliable Ultra Wide Output Range Battery Charger and Power Supply, Ultra Wide Output Range Battery Charger and Power Supply, Output Range Battery Charger and Power Supply, Battery Charger and Power Supply, Power Supply

NPP-750-20211026

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NPP-750-SPEC
N P P - 7 5 0 s e r i e s 750W High Reliable Ultra Wide Output Range Battery Charger & Power Supply 2-in-1

AC input side

User's Manual

DC output side

UL62368-1

BS EN/EN62368-1

IEC62368-1

TPTC004

BS EN/EN60335-1/2-29 IEC60335-1/2-29

 Features

 Applications

Mulit-function single unit battery charger or power supply

Radio system backup solution

operation modes selectable

Electric scooter charger

Output voltage and current adjustable via potentiometer 3-stage charging curve for charging mode -30~+70 wide operating temperature

Camping carBusesHeavy duty truck Specialty vehicles Surveillance system

Multiple protections: Short circuit / Over load / Over voltage / Over temperature
Thermal controlled DC fan for noise reduction Remote ON-OFF control

Industrial automation machinery Industrial control system Mechanical and electrical equipment

Comply with 62368-1+60335-1/-2-29 dual certification

Suitable for lead-acid (Pb) batteries

Carry handle accessory available (Order NO.:DS-Carry handle, sold separately)

3 years warranty

 Description
NPP-750 is a miniaturized dual-purpose charger and power supply. In addition to being used as a threestage charger for lead-acid batteries, it can also be used as a constant voltage output power supply to drive general load. The operating mode can be quickly switched by plugging or unplugging a connector on the front panel. Other features include: ultra-wide voltage output, adjustable voltage via VR on the panel (10.5~21V, 21~42V, 42~80V), adjustable charging current (50~100%), built-in intelligent fan with variable speed based on temperature to reduce noise and extend fan lifetime, -30~+70° C wide operating temperature, suitability for use in different environments, built-in remote ON/OFF control, compliance to IEC/EN/UL62368-1 and household EN60335-1/-2-29 dual safety, multiple built-in protections, and 3-year warranty. The NPP-750 is truly an intelligent, safe, and reliable universal dualpurpose charger and power supply with outstanding cost performance.

 Model Encoding NPP - 750 - 24

Output voltage (12V/24V/48V) Rated wattage Series name

File Name:NPP-750-SPEC 2021-10-26

N P P - 7 5 0 s e r i e s 750W High Reliable Ultra Wide Output Range Battery Charger & Power Supply 2-in-1

SPECIFICATION for Battery Charger mode (Default)

MODEL

NPP-750-12

NPP-750-24

NPP-750-48

BOOST CHARGE VOLTAGE(Vboost)(default) 14.4V

28.8V

57.6V

OUTPUT

FLOAT CHARGE VOLTAGE(Vfloat)(default) 13.8V

10.5 ~ 21V VOLTAGE ADJUSTABLE RANGE
By built-in potentionmeter

MAX. OUTPUT CURRENT(CC) 43A

CURRENT ADJUSTABLE RANGE 21.5 ~ 43A Note.3 By built-in potentionmeter

MAX. POWER

722.4W

27.6V 21 ~ 42V
22.5A 11.25 ~ 22.5A
756W

55.2V 42 ~ 80V
11.3A 5.65 ~ 11.3A
759.36W

RECOMMENDED BATTERY CAPACITY (AMP HOURS) Note.4

150 ~ 500AH

80 ~ 260AH

40 ~ 130AH

VOLTAGE RANGE Note.5 90 ~ 264VAC 127 ~ 370VDC

FREQUENCY RANGE

47 ~ 63Hz

POWER FACTOR (Typ.)

PF>0.98/115VAC, PF>0.95/230VAC at full load

INPUT

EFFICIENCY (Typ.) Note.6 92%

93%

93%

AC CURRENT (Typ.)

8.7A/115VAC 4A/230VAC

INRUSH CURRENT (Typ.) COLD START 50A at 230VAC

SHORT CIRCUIT

Note.7 Protection type : Constant current limiting, charger will shutdown after 5 sec, re-power on to recover

PROTECTION OVER VOLTAGE OVER TEMPERATURE

21.5 ~ 26V

43 ~ 52V

Protection type : Shut down and latch off o/p voltage, re-power on to recover

Shut down O/P voltage, recovers automatically after temperature goes down

82 ~ 100V

REMOTE CONTROL
CHARGING STAGE CHARGER OK SIGNAL FUNCTION BATTERY FULL SIGNAL

Open : Charger stop charging Short : Charger normal work 3 stage only The TTL signal out, Charger OK = H(4.5 ~ 5.5V) ; Charger failure or protection status =L( -0.5 ~ +0.5V) The TTL signal out, Battery full = H(4.5 ~ 5.5V ); Charging = L(-0.5 ~ +0.5V)

REMOTE CONTROL

Open : Charger stop charging Short : Charger normal work

FAN ON/OFF CONTROL

Depends on internal temperature

WORKING TEMP.

-30 ~ +70 (Refer to "Derating Curve")

WORKING HUMIDITY

20 ~ 95% RH non-condensing

ENVIRONMENT STORAGE TEMP., HUMIDITY -40 ~ +85, 10 ~ 95% RH non-condensing

TEMP. COEFFICIENT

±0.05%/ (0 ~ 50)

VIBRATION

10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY STANDARDS

CB IEC62368-1,IEC60335-1/2-29, Dekra BS EN/EN62368-1,BS EN/EN60335-1/2-29, UL62368-1, EAC TP TC 004 approved

WITHSTAND VOLTAGE ISOLATION RESISTANCE

I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC

I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25/ 70% RH

Parameter

Standard

Test Level / Note

Conducted

BS EN/EN55032 (CISPR32),BS EN/EN55014-1 Class B

EMC EMISSION

Radiated Harmonic Current

BS EN/EN55032 (CISPR32),BS EN/EN55014-1 Class B

BS EN/EN61000-3-2

Class A

SAFETY & EMC (Note 8)

Voltage Flicker BS EN/EN61000-6-2 Parameter

BS EN/EN61000-3-3 Standard

----Test Level / Note

ESD

BS EN/EN61000-4-2

Level 3, 8KV air ; Level 2, 4KV contact

Radiated

BS EN/EN61000-4-3

Level 2, 3V/m

EMC IMMUNITY

EFT / Burst Surge

BS EN/EN61000-4-4 BS EN/EN61000-4-5

Level 2, 1KV Level 2, 1KV/Line-Line,Level 3, 2KV/Line-Earth

Conducted

BS EN/EN61000-4-6

Level 2, 3Vrms

Magnetic Field

BS EN/EN61000-4-8

Level 1, 1A/m

Voltage Dips and Interruptions

BS EN/EN61000-4-11

>95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

MTBF

294.5K hrs min. Telcordia SR-332 (Bellcore) ; 95.7K hrs min. MIL-HDBK-217F (25)

OTHERS DIMENSION

230*158*67mm (L*W*H)

PACKING

1.84Kg; 4pcs/ 9Kg / 1.63CUFT

NOTE

1. Modification for charger specification may be required for different battery specification. Please contact battery vendor and MEAN WELL for details. 2. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25 of ambient temperature. 3. Float charge voltage(Vfloat) adjustable via potentiomerter in battery charger mode. 4. This is MEAN WELL's suggested range. Please consult your battery manufacturer for their suggestions about maximum charging current limitation. 5. Derating may be needed under low input voltages. Please check the derating curve for more details. 6. The efficiency is measured at 16.8V charge voltage(12V model), 33.6V charge voltage(24V model), 67.2V charge voltage(48V model). 7. This protection mechanism is specified for the case the short circuit occurs after the charger is turned on.

8. The charger is considered a component which will be installed into a final equipment. All the radiation tests require an additional 13*26*30 NIZN magnetic clasp or magnetic ring to the output line for CLASS B and without NIZN magnetic clasp or magnetic ring for CLASS A. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to EMI testing of component power supplies. (as available on http://www.meanwell.com)
9. The ambient temperature derating of 3.5/1000m with fanless models and of 5/1000m with fan models for operating altitude higher than 2000m(6500ft).  Product Liability DisclaimerFor detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

File Name:NPP-750-SPEC 2021-10-26

N P P - 7 5 0 s e r i e s 750W High Reliable Ultra Wide Output Range Battery Charger & Power Supply 2-in-1

SPECIFICATION for Power Supply mode (Selectable via pin3 & 4 jumper of 14pins connector on panel)

MODEL

NPP-750-12

NPP-750-24

NPP-750-48

DC VOLTAGE

14.4V

28.8V

57.6V

10.5 ~ 21V VOLTAGE ADJUSTABLE RANGE
By built-in potentionmeter

21 ~ 42V

42 ~ 80V

RATED CURRENT

43A

22.5A

11.3A

OUTPUT

RATED POWER RIPPLE & NOISE(max.) VOLTAGE TOLERANCE

722.4W 180mVp-p ±1.0%

756W 300mVp-p ±1.0%

759.36W 480mVp-p ±1.0%

LINE REGULATION

±0.5%

±0.5%

±0.5%

LOAD REGULATION

±1.0%

±1.0%

±0.5%

SETUP, RISE TIME

1800ms, 60ms/230VAC at full load

HOLD UP TIME (Typ.)

16ms/230VAC at 75% load 10ms/230VAC at full load

VOLTAGE RANGE Note.3 90 ~ 264VAC 127 ~ 370VDC

FREQUENCY RANGE

47 ~ 63Hz

POWER FACTOR (Typ.)

PF>0.98/115VAC, PF>0.95/230VAC at full load

INPUT

EFFICIENCY (Typ.)

92%

93%

93%

AC CURRENT (Typ.)

8.7A/115VAC 4A/230VAC

INRUSH CURRENT (Typ.) COLD START 50A at 230VAC

OVERLOAD

105 ~ 115% rated output power Protection type : Constant current limiting, unit will shutdown after 5 sec, re-power on to recover

PROTECTION SHORT CIRCUIT OVER VOLTAGE

Protection type : Constant current limiting, charger will shutdown after 5 sec, re-power on to recover

21.5 ~ 26V

43 ~ 52V

82 ~ 100V

Protection type : Shut down and latch off o/p voltage, re-power on to recover

OVER TEMPERATURE

Shut down O/P voltage, recovers automatically after temperature goes down

REMOTE CONTROL FUNCTION CHARGER OK SIGNAL

Open : Power OFF Short : Power ON The TTL signal out, DC OK = H(4.5 ~ 5.5V) ; Power supply failure or protection = L(-0.5 ~ +0.5V)

FAN ON/OFF CONTROL WORKING TEMP.

Depends on internal temperature -30 ~ +70 (Refer to "Derating Curve")

WORKING HUMIDITY

20 ~ 95% RH non-condensing

ENVIRONMENT STORAGE TEMP., HUMIDITY -40 ~ +85, 10 ~ 95% RH non-condensing

TEMP. COEFFICIENT

±0.05%/ (0 ~ 50)

VIBRATION

10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY STANDARDS

CB IEC62368-1,IEC60335-1/2-29, Dekra BS EN/EN62368-1,BS EN/EN60335-1/2-29, UL62368-1, EAC TP TC 004 approved

WITHSTAND VOLTAGE

I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC

ISOLATION RESISTANCE

I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25/ 70% RH

Parameter

Standard

Test Level / Note

Conducted

BS EN/EN55032 (CISPR32),BS EN/EN55014-1 Class B

EMC EMISSION

Radiated

BS EN/EN55032 (CISPR32),BS EN/EN55014-1 Class B

Harmonic Current

BS EN/EN61000-3-2

Class A

SAFETY & EMC (Note 4)

Voltage Flicker BS EN/EN61000-6-2 Parameter

BS EN/EN61000-3-3 Standard

----Test Level / Note

ESD

BS EN/EN61000-4-2

Level 3, 8KV air ; Level 2, 4KV contact

Radiated

BS EN/EN61000-4-3

Level 2, 3V/m

EMC IMMUNITY

EFT / Burst Surge

BS EN/EN61000-4-4 BS EN/EN61000-4-5

Level 2, 1KV Level 2, 1KV/Line-Line,Level 3, 2KV/Line-Earth

Conducted

BS EN/EN61000-4-6

Level 2, 3Vrms

Magnetic Field

BS EN/EN61000-4-8

Level 1, 1A/m

Voltage Dips and Interruptions

BS EN/EN61000-4-11

>95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

MTBF

294.5K hrs min. Telcordia SR-332 (Bellcore) ; 95.7K hrs min. MIL-HDBK-217F (25)

OTHERS DIMENSION

230*158*67mm (L*W*H)

PACKING

1.84Kg; 4pcs/ 9Kg / 1.63CUFT

NOTE

1. Modification for charger specification may be required for different battery specification. Please contact battery vendor and MEAN WELL for details. 2. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25 of ambient temperature. 3. Derating may be needed under low input voltages. Please check the derating curve for more details.
4. The PSU is considered a component which will be installed into a final equipment. All the radiation tests require an additional 13*26*30 NIZN magnetic clasp or magnetic ring to the output line for CLASS B and without NIZN magnetic clasp or magnetic ring for CLASS A. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to EMI testing of component power supplies. (as available on http://www.meanwell.com)
5. The ambient temperature derating of 3.5/1000m with fanless models and of 5/1000m with fan models for operating altitude higher than 2000m(6500ft).  Product Liability DisclaimerFor detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

File Name:NPP-750-SPEC 2021-10-26

N P P - 7 5 0 s e r i e s 750W High Reliable Ultra Wide Output Range Battery Charger & Power Supply 2-in-1

Block Diagram

AC I/P

EMI FILTER

ACTIVE INRUSH CURRENT LIMITING

RECTIFIERS &
PFC

POWER SWITCHING

PFC CONTROL

PWM CONTROL

Derating Curve

AUX POWER

RECTIFIERS &
FILTER
O.V.P.
DETECTION CIRCUIT
O.T.P.
CONTROL CIRCUIT
FAN
RECTIFIERS &
FILTER

PFC fosc : 80KHz PWM fosc : 60KHz
+V -V

Charger mode/ PSU mode Selectable

DATA ISOLATION

Remote ON-OFF Charger OK Battery Full

POWER (%)

100 100

OUTPUT CURRENT (%)

90

80

230VAC

80

Input only

60

70

50 60
40
50

20

40

-30

-25 -10 0

15

30

50

60

70 (HORIZONTAL)

90 100 115 120 140 160 180 190 200 220 240 264

AMBIENT TEMPERATURE ()

INPUT VOLTAGE (V) 60Hz

I 100

80

60 40

20

V

10.5

16.8

21

12V mode

21

33.6

42 24V mode

42

67.2

80

48V mode

OUTPUT VOLTAGE (V)  The rated current should change with the output voltage programming accordingly.

OUTPUT CURRENT (%)

File Name:NPP-750-SPEC 2021-10-26

N P P - 7 5 0 s e r i e s 750W High Reliable Ultra Wide Output Range Battery Charger & Power Supply 2-in-1

Function Manual 1. Battery Charger or Power Supply Operation modes selectable via pin3 and pin4 jumper

Between pin3 and pin4 Jumper connected Jumper removed

Operation modes Power supply mode Battery charger mode (Default)

2

1

14

13

Jumper(Pin 3 & 4)

2.Charging Curve (Charging Mode)  3 stage charging curve
Start Charge Voltage

Charge Current Constant Current Constant Voltage

stage 1

stage 2

Color of LED Loading Indicator

Red

Vboost Vfloat

Float stage 3
Green

100% CC 10% CC

State
Constant Current
Vboost Vfloat

NPP-750-12 43A
14.4V 13.8V

NPP-750-24 22.5A
28.8V 27.6V

NPP-750-48 11.3A
57.6V 55.2V

 Suitable for lead-acid batteries (flooded, Gel and AGM)

File Name:NPP-750-SPEC 2021-10-26

N P P - 7 5 0 s e r i e s 750W High Reliable Ultra Wide Output Range Battery Charger & Power Supply 2-in-1

50% 75%
100%
50% 75%
100%

2

1

14

13

Jumper(Pin 7 & 8)

 VO x IO must be less than or equal to the rated power. Please refer to derating curve (page 4) .

3.Charger OK / DC OK Signal Charger OK / DC OK signal is a TTL level signal. The maximum sourcing current is 10mA.

Charger OK / DC OK signal "High" : 4.5 ~ 5.5V "Low" : -0.5 ~ 0.5V

Charger status Work normally Failure or protection function activated

PIN 6 Charger OK / DC OK

2

1

14

13

PIN 9 & 10 GND-AUX

4.Remote ON-OFF Control The NPP-750 can be turned ON/OFF by using the "Remote Control" function.

Between pin7 remote ON-OFF and pin8 +12Vaux Short ( Pin 7 = 10.8 ~ 13.2V) Open ( Pin 7 = -0.5 ~ 0.5V)

Charger status ON (Default) OFF

PIN 7 Remote ON-OFF

2

1

14

13

PIN 8 +12Vaux

File Name:NPP-750-SPEC 2021-10-26

N P P - 7 5 0 s e r i e s 750W High Reliable Ultra Wide Output Range Battery Charger & Power Supply 2-in-1

Mechanical Specification
 Battery Charger model

Case No.285A Unit:mm

230

145

42.5

7

20
67
9

Status
Io Adj. Vo Adj.
21
14 13 CN71

V+ DC OUTPUT V-

36

45

138

158

19.5

Air flow direction

ON
I O OFF

AC INPUT

 Connector Pin No. Assignment : HRS DF11-14DP-2DS or equivalent

Pin No. Assignment

Mating Housing Terminal

1,2,11~14 NC

3,4 Battery Charger or Power Supply mode selectable

5 Battery Full

HRS DF11-14DS HRS DF11-**SC

6 Charger OK (Charger mode) or or equivalent or equivalent

DC OK (Power supply mode)

7 Remote ON-OFF

8 +12V-AUX

9,10 GND-AUX

 LED Status Table

LED Indicator Green Red No Light
LED Indicator Green No Light

Charger (Default) Status
Float stage (stage 3) or full charged Charging (stage 1 or stage 2) Abnormal Power supply mode
Status Normal working Abnormal

File Name:NPP-750-SPEC 2021-10-26

N P P - 7 5 0 s e r i e s 750W High Reliable Ultra Wide Output Range Battery Charger & Power Supply 2-in-1

 Control Pin No. Assignment : HRS DF11-14DP-2DS or equivalent

2

1

14 13

Mating Housing HRS DF11-14DS or equivalent

Terminal

HRS DF11-**SC or equivalent

Pin No. Function

Description

1,2,11~14

NC

-----

Battery charger / Open: Battery charger, Color of LED loading indicator: Reference to battery charger.

3,4

Power supply Short: Power supply, Color of LED loading indicator :Green.

Battery Full Signal, referenced to GND-AUX(Pin 9 & 10).

5

Battery Full The Signal is a TTL level signal. The maximum sourcing current is 10mA and only for output.(Note.2)

Low (-0.5 ~ 0.5V) : When the battery is charging.

High (4.5 ~ 5.5V) : When the battery is full.

Charger OK / DC OK Signal, referenced to GND-AUX(Pin 9 & 10).

6

Charger OK / The Signal is a TTL level signal. The maximum sourcing current is 10mA and only for output.(Note.2)

DC OK

Low (-0.5 ~ 0.5V) : When the charger fails or the protect function is activating.

High (4.5 ~ 5.5V) : When the charger is working properly.

Remote

Remote charger ON/OFF Function.

7

ON-OFF

The charger can turn the output ON/OFF by dry contact between Remote ON-OFF and +12V-AUX.(Note.2)

Short (10.8 ~ 13.2V) : Charger ON ; Open(-0.5 ~ 0.5V) : Charger OFF ; The maximum input voltage is 13.2V.

8

+12V-AUX It is controlled by the Remote ON-OFF control.

9,10

GND-AUX The signal return is isolated from the output terminal. (+V & -V)

Note1: Non-isolated signal, referenced to [GND(signal)]. Note2: Isolated signal, referenced to GND-AUX

Accessory List
 Battery Charger or Power Supply mode of pin 3 and pin 4 mating pin along with NPP-750 (Standard accessory)
Pin 3 and Pin 4 mating pin

Quantity

1
1FF1HMJ20-020-95BS or equivalent

File Name:NPP-750-SPEC 2021-10-26

N P P - 7 5 0 s e r i e s 750W High Reliable Ultra Wide Output Range Battery Charger & Power Supply 2-in-1

 Carry handle (Optional accessory, battery charger and pull handle should be ordered seperately)

MW's Order No.

Item

1

Handle

Quantity 1

DS-Carry Handle

2 Foot pad

4

1 Handle

3 Screw

2 M4*2

2 Foot pad

INSTALLATION MANUAL
Please refer to : http://www.meanwell.com/manual.html

File Name:NPP-750-SPEC 2021-10-26



References

Acrobat Distiller 9.0.0 (Windows)