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Mean Well NTU-1700-212AU True Sine Wave DC-AC Inverter 1700W 220V out 12V in with AU Socket, with AC by-pass function

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-1700-212AU

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Overview

NTU-1700-212AU is the model of this series: typical efficiency 89%.

NTU-1700 is a 1700W 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, 3400W peak power, adjustable AC output voltage and frequency, -25~+70℃ wide operating temperature range, complete protection features, and etc. Combined with batteries, the NTU-1700 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, electromagnetic 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 3400W
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-1700-212AUSpecifications from the official datasheet (2026-02-04 edition)

AC OUTPUT

RATED POWER(Continuous): 1700W
OVER RATED POWER(3 Min.): 2000W
PEAK POWER(10 Sec.): 2550W
SURGE POWER(30 Cycles): 3400W
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: 12Vdc
VOLTAGE RANGE (Typ.): 10 ~ 16.5Vdc
DC CURRENT (Typ.): 170A
NO LOAD DISSIPATION (SAVING MODE)(Typ.)^Note.2: Default disable, auto detect AC output load≦10W will be changed to saving mode <8W
OFF MODE CURRENT DRAW: ≦1mA
EFFICIENCY (Typ.)^Note.1: 89%
BATTERY TYPES: Lead Acid or li-ion

PROTECTION

FUSE (INTERNAL): 40A*6
LOW ALARM: 11±0.3Vdc
LOW SHUTDOWN: 10±0.3Vdc
LOW RESTART: 12.5±0.3Vdc
HIGH ALARM: 15.5±0.3Vdc
HIGH SHUTDOWN: 16.5±0.3Vdc
HIGH RESTART: 15±0.3Vdc
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 CONTROL

REMOTE CONNECTOR: Power ON-OFF remote control by front panel dry contact connector(by RELAY), Open : Normal work ; Short : Remote off
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 ~ +158℉, 10 ~ 95% RH non-condensing
VIBRATION: 10 ~ 500Hz, 3G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: CB IEC62368-1,Dekra BS EN/EN62368-1,UL458, E13,EAC TP TC 004,AS/NZS 62368.1 approved (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^Note.5: 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: 421.9K hrs min. Telcordia TR/SR-332 (Bellcore) ; 45.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 400*184*70mm (L*W*H)
PACKING: 4.63Kg; 2pcs/ 12Kg/ 1.76CUFT

Test conditions and notes5

1.Efficiency, AC regulation and THD are tested by 1350W load, linear load at 12.5Vdc/25Vdc/50Vdc input voltage.
2.No load dissipation at non-saving mode(Typ.): 112/124/148 for 16W, 212/224/248 for 29W.
3.All parameters not specified above are measured at rated load, 25℃ of ambient temperature and set to factory setting.
4.Internal pre-start circuit, the setup time is 8s.
5.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-1700-212AU AC Output Socket — AC Output Socket

NTU-1700-212AU IRC1/2/3 Remote Controller (Accessory — IRC1/2/3 Remote Controller (Accessory

NTU-1700-212AU Support RS-232 Communication — Support RS-232 Communication

NTU-1700-212AU AC Output Voltage、Frequency、Power — AC Output Voltage、Frequency、Power

NTU-1700-212AU FUNCTION MANUAL — FUNCTION MANUAL

NTU-1700-212AU MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

NTU-1700-212AU Accessory List — Accessory List

NTU-1700-212AU TYPICAL APPLICATION — TYPICAL APPLICATION

Typical applications

Downloads

Datasheet1

NTU-1700-212AU datasheetNTU-1700-SPEC.PDF · 2026-02-04 edition PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

What are the main power and voltage specifications of the Mean Well NTU-1700-212AU?

The NTU-1700-212AU is a 1700W true sine wave DC-AC inverter designed for 12V DC input (10~16.5VDC range). Its AC output voltage is selectable by DIP switch at 200/220/230/240VAC, with a default of 230VAC/50Hz. This model is the 200-240VAC output variant and includes an AU socket.

Does this inverter produce a true sine wave output?

Yes. The NTU-1700-212AU provides a true sine wave output with total harmonic distortion below 3%. That makes it a better fit for equipment that requires clean AC power compared with modified sine wave alternatives.

What battery types is the NTU-1700-212AU compatible with?

This model is suitable for use with lead-acid or lithium-ion batteries. It also includes battery over-discharge protection through low voltage disconnect. Buyers should still confirm the rest of the system matches the inverter's 12V DC input requirement.

Is this model suitable for backup power or UPS-style applications?

Yes, this inverter includes a built-in UPS function with AC by-pass. That makes it relevant for applications where AC pass-through and inverter backup capability are needed in one unit. It is aimed at higher-power use cases that need up to 1700W continuous output.

What makes the NTU-1700-212AU different from a basic DC-AC inverter?

This model combines true sine wave output, a built-in AC by-pass UPS function, and high surge capability up to 3400W. It also adds features such as selectable output voltage and frequency, remote on-off control, front-panel status indicators, and built-in RS-232 communication via an RJ11 connector, with IRC1/IRC2/IRC3 remote controllers sold separately. Those features make it more capable than a basic inverter intended only for simple DC-to-AC conversion.

What operating environment is this inverter rated for?

The NTU-1700-212AU is rated for operation from -25°C to +70°C, subject to the output derating curve. It uses a built-in cooling fan and is specified for 20~90% RH non-condensing humidity and 10~500Hz, 3G vibration. These ratings support use in demanding industrial or mobile environments where temperature range and durability matter.

What protection features are included in the NTU-1700-212AU?

This inverter includes protection against output short circuit, overload, over temperature, and DC input over-voltage (high shutdown at 16.5±0.3VDC). It also has battery over-discharge protection through low voltage shutdown at 10±0.3VDC, and reverse battery polarity protection by internal fuse. For overload behavior, the unit supports 105-115% load for 180 seconds and 115-150% load for 10 seconds.

What certifications and warranty does this model have?

The NTU-1700-212AU is listed with approvals including CB IEC62368-1, Dekra BS EN/EN62368-1, UL458, E13, EAC TP TC 004, and AS/NZS 62368.1. EMC compliance includes EN55032 Class A and BS EN/EN61000-4-2,3,4,5,6,8,11. The spec sheet refers to its AC output socket table for socket-specific approvals and does not state a warranty period.

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Model	Power	Voltage	Waveform	Frequency
Mean Well NTU-1700-148US True Sine Wave DC-AC Inverter 1700W 110V out 48V in with US Socket, with AC by-pass function	1700W	110V	True Sine Wave	50Hz	View
Mean Well NTU-1700-124US True Sine Wave DC-AC Inverter 1700W 110V out 24V in with US Socket, with AC by-pass function	1700W	110V	True Sine Wave	50Hz	View
Mean Well NTU-1700-248AU True Sine Wave DC-AC Inverter 1700W 220V out 48V in with AU Socket, with AC by-pass function	1700W	240V	True Sine Wave	50Hz	View
Mean Well NTU-1700-224AU True Sine Wave DC-AC Inverter 1700W 220V out 24V in with AU Socket, with AC by-pass function	1700W	220V	True Sine Wave	50Hz	View

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