400W High Reliable Built-in Type True Sine Wave DC-AC Power Inverter NTS-400P series

User’s Manual Video

(DC input side)

(AC output side)

E13
IEC62368-1 TPTC004 AS/NZS 62368.1
Please refer to page3 for more details.

■ Features ■ Applications

Compact size and light weight
Mobile device

True sine wave output (THD<3%)
Home and office appliance

High surge power up to 800W
Portable equipment

250W convection, 400W forced air
Vehicle

AC output voltage and frequency selectable by DIP S.W
Yacht

No load disspation <1.5W max. at standby saving mode
Off-grid solar power system

-20℃~+70℃ wide operating temperature
Wireless network

Power ON-OFF remote control
Telecom or datacom system

Protections :
Input : Reverse polarity / DC low alarm / DC low shutdown / Over voltage
Output : Short circuit / Overload / Over temp.

Battery over discharge protection (Low voltage disconnect)

Suitable for lead-acid or li-ion batteries ■ GTIN CODE
MW Search: https://www.meanwell.com/serviceGTIN.aspx

Support Tx/Rx for monitoring power inverter status

Conformal coating

3 years warranty
■ Description
NTS-400P is a 400W highly reliable built-in type off-grid true sine wave DC-AC power inverter. Its key
features include: digital design with MCU control, streamlined control circuitry that quickly responds to
environmental changes and improves reliability, compact size, light weight, 800W peak power,
adjustable AC output voltage and frequency, -20~+70℃ wide operating temperature range, built-in
remote ON/OFF control, low no-load power consumption (energy saving mode < 1.5W max. ), complete
protection features, and etc. Combined with batteries, the NTS-400P is suitable for use in residential,
commercial, marine, automobile, and remote areas with no access to utility power, and the output can be
used to power fans, TV, radio, phone charger, PC/laptop, lighting, outdoor camping equipment, marine
AC power, and etc.

■ Model Encoding
NTS - 400 P - 1 12

DC input voltage (12: 12Vdc, 24: 24Vdc, 48: 48Vdc)

AC output voltage (1: 100/110/115/120Vac, 2:200/220/230/240Vac)
PCB Built-in type
Rated wattage
Series name

File Name:NTS-400P-SPEC 2024-02-23

 400W High Reliable Built-in Type True Sine Wave DC-AC Power Inverter NTS-400P series

SPECIFICATION
MODEL NO. NTS-400P-112 NTS-400P-124 NTS-400P-148 NTS-400P-212 NTS-400P-224 NTS-400P-248
RATED POWER(Continuous) 400W
OVER RATED POWER(3 Min.) 460W
PEAK POWER(10 Sec.) 600W
SURGE POWER(30 Cycles) 800W
Default setting set at 110VAC Default setting set at 230VAC
AC VOLTAGE
AC OUTPUT 100 / 110 / 115 / 120Vac selectable by DIP S.W 200 / 220 / 230 / 240Vac selectable by DIP S.W
Default setting set at 60Hz±0.1Hz Default setting set at 50Hz±0.1Hz
FREQUENCY
50/60Hz selectable by DIP S.W 50/60Hz selectable by DIP S.W
WAVEFORM Note.1 True sine wave (THD<3%)
AC REGULATION ±3.0% at rated output voltage
LED STATUS Please refer to page3
DC VOLTAGE 12V 24V 48V 12V 24V 48V
VOLTAGE RANGE (Typ.) 10 ~ 16.5Vdc 20 ~ 33Vdc 40 ~ 66Vdc 10 ~ 16.5Vdc 20 ~ 33Vdc 40 ~ 66Vdc
DC CURRENT (Typ.) 40A 20A 10A 40A 20A 10A
NO LOAD Non-Saving mode 10W 10W 12W 10W 10W 12W
DC INPUT DISSPATION Default disable, ≦1.2W ~ 1.5W by models @ auto detec AC output load ≦10W will be changed to saving mode
(Typ.) Saving mode
1.2W 1.3W 1.5W 1.2W 1.3W 1.5W
OFF MODE CURRENT DRAW <1mA at battery ~DC input must be disconnected
EFFICIENCY (Typ.) Note.1 89% 91% 91% 91% 93% 93%
BATTERY TYPES Lead Acid or Li-ion
FUSE(Internal) 40A*2 30A*2 10A*2 40A*2 30A*2 10A*2
ALARM 11±0.3Vdc 22±0.5Vdc 44±1Vdc 11±0.3Vdc 22±0.5Vdc 44±1Vdc
LOW SHUTDOWN 10±0.3Vdc 20±0.5Vdc 40±1Vdc 10±0.3Vdc 20±0.5Vdc 40±1Vdc
DC INPUT

RESTART 12.5±0.3Vdc 25±0.5Vdc 50±1Vdc 12.5±0.3Vdc 25±0.5Vdc 50±1Vdc

ALARM 15.5±0.3Vdc 31±0.5Vdc 62±1Vdc 15.5±0.3Vdc 31±0.5Vdc 62±1Vdc
PROTECTION

HIGH SHUTDOWN 16.5±0.3Vdc 33±0.5Vdc 66±1Vdc 16.5±0.3Vdc 33±0.5Vdc 66±1Vdc

RESTART 15±0.3Vdc 30±0.5Vdc 60±1Vdc 15±0.3Vdc 30±0.5Vdc 60±1Vdc
BAT. POLARITY By internal fuse open
OVER TEMPERATURE Protection type : Shut down o/p voltage, re-power on to recover
AC OUTPUT

OUTPUT SHORT Protection type : Shut down o/p voltage, re-power on to recover
105 ~ 115% load for 180 sec., 115% ~ 150% load for 10 sec.
OVER LOAD (Typ.)
Protection type : Shut down o/p voltage, re-power on to recover
REMOTE CONTROL Power ON-OFF remote control by front panel dry contact connector (by RELAY), Open : Normal work ; Short : Remote off
FUNCTION
Tx/Rx Support Tx/Rx for monitoring power inverter status
WORKING TEMP. -20 ~ +70℃(Refer to “Derating curve”)
WORKING HUMIDITY 20% ~ 90% RH non-condensing
ENVIRONMENT
STORAGE TEMP., HUMIDITY -30 ~ +70℃ / -22 ~ +158oF, 10 ~ 95% RH non-condensing
VIBRATION 10 ~ 500Hz, 3G 10min./1cycle, 60min. each along X, Y, Z axes
CB IEC62368-1 for all models; E13, EAC TPTC004, AS/NZS 62368.1 for NTS-400P-212/224/248 approved
SAFETY STANDARDS
(Please refer to next page “Safety overview” table for more details)
WITHSTAND VOLTAGE DC I/P - AC O/P:3.0KVac AC O/P - FG:1.5KVac
Parameter Standard Test Level / Note
FCC for 112,124,148 only Class A
Radiated
SAFETY EMC EMISSION BS EN/EN55032(CISPR32) for 212,224,248 only Class A
& Harmonic Current BS EN/EN61000-3-2 -----
EMC Voltage Flicker BS EN/EN61000-3-3 -----
(Note.4) BS EN/EN55024, BS EN/EN55035
Parameter Standard Test Level / Note
EMC IMMUNITY ESD BS EN/EN61000-4-2 Level 4, 15KV air ; Level 4, 8KV contact
Radiated BS EN/EN61000-4-3 Level 3, 10V/m
Magnetic Field BS EN/EN61000-4-8 Level 4, 30A/m
MTBF 836.2K hrs min. Telcordia TR/SR-332 (Bellcore) ; 84K hrs min. MIL-HDBK-217F (25℃)
OTHERS DIMENSION 186*100.5*32mm (L*W*H)
PACKING 0.75Kg; 18pcs/ 14.5Kg/ 1.01CUFT
1.Efficiency, AC regulation and THD are tested by 400W, linear load at 12.5Vdc/25Vdc/50Vdc input voltage.
2.All parameters not specified above are measured at rated load, 25℃ of ambient temperature and set to factory setting.
3.Internal pre-start circuit, the setup time is 8s.
NOTE
4.The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with the
EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”
(as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
※ Product Liability Disclaimer：For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

File Name:NTS-400P-SPEC 2024-02-23

 400W High Reliable Built-in Type True Sine Wave DC-AC Power Inverter NTS-400P series

Safety Overview

MODEL NO. Certificate

NTS-400P-112/124/148

NTS-400P-212/224/248 E13

Block Diagram

POWER EMI L
+V INVERTER
SWITCHING FILTER N

-V PWM CONTROL PWM CONTROL

MCU
(fosc 30KHz) (fosc 30KHz)
DETECTION
CIRCUIT
O.T.P.
FG

DERATING CURVE

100

80
60
LOAD (%)

50

40

Natural convection Force air with 10CFM fan

-20 0 10 20 30 40 50 60 70 (HORIZONTAL)

AMBIENT TEMPERATURE (℃)

100

80
Force air with 10CFM fan
LOAD (%)

60

40
Natural convection
20

10Vdc 10.5Vdc 16.5Vdc

20Vdc 21Vdc 33Vdc
40Vdc 42Vdc 66Vdc

File Name:NTS-400P-SPEC 2024-02-23

 400W High Reliable Built-in Type True Sine Wave DC-AC Power Inverter NTS-400P series

Remote ON-OFF Control

Remote ON-OFF
AC Output Status
(CN301 PIN1,2)
CN100
CN301
Open power inverter ON R.C

Short power inverter OFF 1 2 1 2 3

1 2

AC output voltage、Frequency、Power saving mode selectable by DIP SW

Output Voltage and Frequency Setting Factory settings are either 110Vac/60Hz or 230Vac/50Hz, users are able to adjust the
voltage and frequency, through the DIP switch of position 1,2,3,4.
LED

CN50
AC Output Voltage、 Frequency、Power saving mode selectable by DIP SW ON

SW1 SW2 SW3 SW4 12 3 4

OFF OFF : 100Vac or 200Vac DIP S.W

ON : 50Hz ON : Saving mode
OFF ON : 110Vac or 220Vac
ON OFF : 115Vac or 230Vac
OFF: 60Hz OFF: Non-Saving mode
ON ON : 120Vac or 240Vac

Support Tx/Rx for monitoring power inverter status

Users can monitor the status of the power inverter through T x /R x , and can modify the input and output parameters set internally.

File Name:NTS-400P-SPEC 2024-02-23

 400W High Reliable Built-in Type True Sine Wave DC-AC Power Inverter NTS-400P series

LED STATUS
Normal work:
Green Orange Red

Status System check Remote off

Abnormal Status
Inverter OK Saving mode (See below table)

Green Orange Red

12.5~15.5Vdc 11~12.5Vdc <11Vdc or >15.5Vdc
DC Input
25~31Vdc 22~25Vdc <22Vdc or >31Vdc
50~62Vdc 44~50Vdc <44Vdc or >62Vdc

Green Orange Red

Load
<40% load 40~80% load >80% load

Abnormal status :
LED Indicator Abnormal Indication
Status
DC Input Output overload or AC output short circuit
Load

Status
DC Input Abnormal DC voltage
Load

Status

DC Input Over temperature or Fan lock

Load

Status
DC Input Inverter fail
Load

Light
Light off
Flash

File Name:NTS-400P-SPEC 2024-02-23

 400W High Reliable Built-in Type True Sine Wave DC-AC Power Inverter NTS-400P series

MECHANICAL SPECIFICATION
Unit:mm
186
5.7 174.6 32

5.95
5.95

φ3.5 φ5.5 1
2
(M3) (M5) CN500 3
4
5
CN301
10CFM FAN

R.C 5cm 26 6
1
2
1
2 CN100

100.5
88.6
3
Air flow R4
direction .2

LED CN50

DIP S.W
3 4
3

ON
50

2
Red 2 1
TB1 1
Black φ3.5
(M3) φ3.5
(M3)

2.5mm(Max.)

Load

DC input TX RX GND

Status

DC Input Connector(TB1): Anderson 1327 &1327G6 or equivalent

Pin No. Description Mating Housing Terminal
Red DC Input +V 1327 or equivalent 261G2-LPBK
Black DC Input -V 1327G6 or equivalent or equivalent

AC Output Connector(CN500): JST B6P-VH or equivalent

Pin No. Assignment Mating Housing Terminal
1 FG
2,3 NC
JST VHR JST SVH-21T-P1.1
4 Output AC/N or equivalent or equivalent
5 NC
6 Output AC/L

Remote ON-OFF Control Connector(CN301): JST S2B-XH-A or equivalent

Pin No. Description Mating Housing Terminal
1 Pin 1,2 Open: Inverter Normal work JST XHP JST SXH-001T
2 Pin 1,2 Short: Inverter Remote off or equivalent or equivalent

Communicating Function Connector(CN50): CHYAO SHIUN JS-100R-03 or equivalent

Pin No. Description Mating Housing Terminal
1 Signal GND
CHYAO SHIUNN CHYAO SHIUNN
2 UART-RX JS-2001 JS-2001-TX
or equivalent or equivalent
3 UART-TX

FAN Connector(CN100): JST B3B-XH-A or equivalent

Suggested Fan model: CCHV CHT4012BH-W20D 4020B
Pin No. Description Mating Housing Terminal
1 Fan supply +V
12V/0.4A max. JST XHP JST SXH-001T
2 Fan supply -V or equivalent or equivalent
3 PWM signal for Fan speed control

DIP SW：Please refer to page4 for more detail

File Name:NTS-400P-SPEC 2024-02-23
 400W High Reliable Built-in Type True Sine Wave DC-AC Power Inverter NTS-400P series

TYPICAL APPLICATION

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

File Name:NTS-400P-SPEC 2024-02-23