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Mean Well NTU-1200-224AU True Sine Wave DC-AC Inverter 1200W 220V out 24V in with AU Socket

built-in UPS function(AC by-pass)built-in dip switch to adjust AC output voltagefrequency and saving modecan be remotely controlled by IRC controllers

SKU NTU-1200-224AU

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Overview

NTU-1200-224AU is the model of this series: typical efficiency 92%.

NTU-1200 is a 1200W highly reliable off-grid true sine wave DC-AC power inverter with built-in UPS function(AC by-pass). Its key features include: digital design with MCU control, streamlined control circuitry that quickly responds to environmental changes and improves reliability, high quality fan with low acoustic noise, 2000W peak power, adjustable AC output voltage and frequency, -25~+70℃ wide operating temperature range, complete protection features, and etc. Combined with batteries, the NTU-1200 is suitable for use in residential, commercial, marine, automobile, mine, construction site, 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, induction stove, air conditioner, electromechanical tool, communication equipment, power distribution cabinet, outdoor camping equipment, marine AC power, factory equipment, and etc.

Features

Built-in UPS function (AC by-pass)
True sine wave output (THD<3%)
High surge power up to 2000W
Temperature controlled cooling fan
AC output voltage and frequency selectable by DIP S.W
-25℃~+70℃ wide operating temperature
Power ON-OFF remote control
Front panel indicator for operation status
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
Remote controller (IRC1, IRC2, IRC3 accessory sold separately, please refer to: https://www.meanwell.com/webapp/product/search.aspx?prod=IRC1)
Support RS-232 communication(Communication cable order No.: RJ11-RS232, sold sperately)
Carry handle accessory available(Order NO.: Carry handle, sold separately)
Conformal coating
3 years warranty

Specifications

NTU-1200-224AUSpecifications from the official datasheet (2026-02-04 edition)

AC OUTPUT

RATED POWER(Continuous): 1200W
OVER RATED POWER(3 Min.): 1380W
PEAK POWER(10 Sec.): 1800W
SURGE POWER(30 Cycles): 2000W
AC VOLTAGE: Default setting set at 230VAC 200 / 220 / 230 / 240Vac selectable by DIP S.W
FREQUENCY: Default setting set at 50±0.1Hz 50/60Hz selectable by DIP S.W
WAVEFORM^Note.1: True sine wave (THD<3%)
AC REGULATION: ±3.0% at rated output voltage
FRONT PANEL LED: Please see page 5

DC INPUT

DC VOLTAGE: 24Vdc
VOLTAGE RANGE (Typ.): 20 ~ 33Vdc
DC CURRENT (Typ.): 60A
NO LOAD DISSIPATION (Typ.) NON-SAVING MODE: 25W
NO LOAD DISSIPATION (Typ.) SAVING MODE: Default disable, auto detect AC output load≦10W will be changed to saving mode <8W
OFF MODE CURRENT DRAW: ≦1mA
EFFICIENCY (Typ.)^Note.1: 92%
BATTERY TYPES: Lead Acid or li-ion

PROTECTION

FUSE (INTERNAL): 40A*2
LOW ALARM: 22±0.5Vdc
LOW SHUTDOWN: 20±0.5Vdc
LOW RESTART: 25±0.5Vdc
HIGH ALARM: 31±0.5Vdc
HIGH SHUTDOWN: 33±0.5Vdc
HIGH RESTART: 30±0.5Vdc
BAT. POLARITY: By internal fuse open
OVER TEMPERATURE: Protection type : Shut down o/p voltage, re-power on to recover
OUTPUT SHORT: Protection type : Shut down o/p voltage, re-power on to recover
OVER LOAD (Typ.): 105 ~ 115% load for 180 sec., 115% ~ 150% load for 10 sec. Protection type : Shut down o/p voltage, re-power on to recover
CIRCUIT BREAKER: 10A
GFCI PROCTECTION: None

FUNCTION

REMOTE CONTROL CONNECTOR: Power ON-OFF remote control by front panel dry contact connector(by RELAY), Open : Normal work ; Short : Remote off
REMOTE CONTROL ACCESSORY: Remote controller sold separately, Order No.: IRC1,IRC2,IRC3
RS-232 COMMUNICATION: RS-232 ~ RJ11 Type connector (Please refer to page 4 for more details)

AC UPS MODE

AC INPUT RANGE: 200/220/230/240Vac±16%, recover±13%
FREQUENCY RANGE: 45 ~ 65Hz
TRASFER TIME(Typ.): 10ms inverter <--> AC by pass

ENVIRONMENT

WORKING TEMP.: -25 ~ +70℃(Refer to “Derating curve”)
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
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

SAFETY & EMC (Note.4)

SAFETY STANDARDS: CB IEC62368-1,Dekra BS EN/EN62368-1,UL458, E13,EAC TP TC 004 approved; Design refer to AS/NZS 62368.1 (Please refer to next page “AC output socket” table for more details )
WITHSTAND VOLTAGE: DC I/P - AC I/P:3.0KVac DC I/P - AC O/P:3.0KVac AC O/P - FG:1.5KVac
EMC EMISSION: Parameter Standard Test Level

Radiated FCC for 112,124,148 only(expect for Type-UN) Class A
Radiated BS EN/ EN55032(CISPR32) for 212,224,248 only(expect for Type-UN) Class A
Conducted FCC for 112,124,148 only(expect for Type-UN) Class A
Conducted BS EN/ EN55032(CISPR32) for 212,224,248 only(expect for Type-UN) Class A
Harmonic Current BS EN/EN61000-3-2 Class A
Voltage Flicker BS EN/EN61000-3-3
EMC IMMUNITY: BS EN/ EN55024, BS EN/ EN55035

Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 3, 8KV air; Level 2, 4KV contact
Radiated BS EN/EN61000-4-3 Level 2
EFT / Burst BS EN/EN61000-4-4 Level 2, 1KV
Surge BS EN/EN61000-4-5 Level 3, 1KV/Line-Line 2KV/Line-Earth
Conducted BS EN/EN61000-4-6 Level 2
Magnetic Field BS EN/EN61000-4-8 Level 1
Voltage Dips and Interruptions BS EN/EN61000-4-11 >95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

Parameter	Standard	Test Level
Radiated	FCC for 112,124,148 only(expect for Type-UN)	Class A
Radiated	BS EN/ EN55032(CISPR32) for 212,224,248 only(expect for Type-UN)	Class A
Conducted	FCC for 112,124,148 only(expect for Type-UN)	Class A
Conducted	BS EN/ EN55032(CISPR32) for 212,224,248 only(expect for Type-UN)	Class A
Harmonic Current	BS EN/EN61000-3-2	Class A
Voltage Flicker	BS EN/EN61000-3-3

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 3, 8KV air; Level 2, 4KV contact
Radiated	BS EN/EN61000-4-3	Level 2
EFT / Burst	BS EN/EN61000-4-4	Level 2, 1KV
Surge	BS EN/EN61000-4-5	Level 3, 1KV/Line-Line 2KV/Line-Earth
Conducted	BS EN/EN61000-4-6	Level 2
Magnetic Field	BS EN/EN61000-4-8	Level 1
Voltage Dips and Interruptions	BS EN/EN61000-4-11	>95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

OTHERS

MTBF: 460.5K hrs min. Telcordia TR/SR-332 (Bellcore) ; 58.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 333*184*70mm (L*W*H)
PACKING: 3.3Kg; 2pcs/ 7.6Kg/ 1.25CUFT

Test conditions and notes4

1.Efficiency, AC regulation and THD are tested by 900W load, 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.
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 )

Technical drawings

NTU-1200-224AU AC Output Socket — AC Output Socket

NTU-1200-224AU DERATING CURVE — DERATING CURVE

NTU-1200-224AU Support RS-232 Communication — Support RS-232 Communication

NTU-1200-224AU AC Output Voltage、Frequency、Power — AC Output Voltage、Frequency、Power

NTU-1200-224AU FUNCTION MANUAL — FUNCTION MANUAL

NTU-1200-224AU MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

NTU-1200-224AU TYPICAL APPLICATION — TYPICAL APPLICATION

Typical applications

Downloads

Datasheet1

NTU-1200-224AU datasheetNTU-1200-SPEC.PDF · 2026-02-04 edition PDF Download

Certificates8

MeanWell NTS-1200 and NTU-1200 Certificate PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

What is the Mean Well NTU-1200-224AU designed for?

The NTU-1200-224AU is a 1200W true sine wave DC-AC inverter designed to convert 24V DC input into 230V AC output (factory default). It is suited to applications that need clean AC power from a DC battery-based system, including mobile, industrial, and backup power environments.

Does this inverter produce true sine wave output?

Yes. This model provides true sine wave AC output with total harmonic distortion below 3%, which is useful for equipment that requires cleaner power than modified sine wave alternatives. The product description specifically lists true sine wave output as a core feature.

What input and output voltages does the NTU-1200-224AU support?

This model uses a 24V DC input (20 to 33Vdc range) and is supplied with an AU socket. Its AC output voltage is selectable by DIP switch across 200/220/230/240VAC, with a factory default of 230VAC, and the frequency is selectable between 50 and 60Hz (default 50Hz).

Can this inverter handle startup surges above its continuous rating?

Yes. The NTU-1200-224AU has a continuous power rating of 1200W and supports surge power up to 2000W. That makes it better suited to loads that briefly draw more power at startup than they do during normal operation.

Does this model include UPS or AC bypass functionality?

Yes. The product features a built-in UPS function with AC bypass, as stated in the product description. That can be important in applications where maintaining AC output continuity is a priority.

What protection features are included in this inverter?

The NTU-1200-224AU includes protection for output short circuit, overload, over temperature, and DC input high voltage. It also has battery over-discharge protection through low voltage shutdown, helping protect the connected battery system from excessive discharge.

Is this inverter compatible with different battery chemistries?

Yes. The specification states that it is suitable for both lead-acid and lithium-ion batteries. Buyers using 24V DC battery systems in either chemistry can consider this model where that compatibility is required.

What operating environment is this inverter rated for?

This model is rated for a working temperature range of -25°C to +70°C, with reference to the output derating curve. It uses a built-in cooling fan and is rated for 20% to 90% RH non-condensing humidity, which supports use in more demanding operating environments.

Payment & Security

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Model	Power	Voltage	Waveform	Frequency
Mean Well NTU-1200-148US True Sine Wave DC-AC Inverter 1200W 110V out 48V in with US Socket	1200W	110V	True Sine Wave	50Hz	View
Mean Well NTU-1200-112US True Sine Wave DC-AC Inverter 1200W 110V out 12V in with US Socket	1200W	110V	True Sine Wave	50Hz	View
Mean Well NTU-1200-248AU True Sine Wave DC-AC Inverter 1200W 220V out 48V in with AU Socket	1200W	240V	True Sine Wave	50Hz	View
Mean Well NTU-1200-212AU True Sine Wave DC-AC Inverter 1200W 200V out 12V in with AU Socket	1200W	200V	True Sine Wave	50Hz	View

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