Mean Well NTS-450 Series

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NTS-450 series

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File Name:NTS-450-SPEC 2021-04-26

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450W High Reliable True Sine Wave DC-AC Power Inverter

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TPTC004

IEC62368-1 AS/NZS 62368.1

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EN62368-1

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The MEAN WELL NTS-450 is a 450W high-reliable true sine wave DC-AC power inverter, designed to convert DC power from a battery bank into AC power for various applications. It is suitable for use in residential, commercial, marine, automotive, mine, construction site, and remote areas with no access to utility power. The inverter can be used to power fans, TVs, radio, phone chargers, PCs/laptops, lighting, electromechanical tools, communication equipment, power distribution cabinets, outdoor camping equipment, marine AC power, factory equipment, and more.

Function Description

The NTS-450 inverter takes a DC input and converts it into a stable, true sine wave AC output. This ensures compatibility with sensitive electronic devices that require a clean power source. The device features a microprocessor-controlled design, allowing for high reliability and efficient power conversion. It supports various DC input voltage ranges, including 12.5~15.5Vdc, 25~31Vdc, and 50~62Vdc, and provides AC output voltages such as 100Vac, 110Vac, 115Vac, 120Vac, 200Vac, 220Vac, 230Vac, and 240Vac, with frequencies of 50Hz or 60Hz.

The inverter includes several protection features, such as output overload, AC output short circuit, abnormal DC voltage, over temperature, fan lock, and inverter failure. It also offers remote ON-OFF control, allowing users to turn the inverter on or off remotely. The output voltage and frequency, as well as power saving mode, can be adjusted via DIP switches on the panel.

Important Technical Specifications

DC Input:

Rated Power (Continuous): 450W
Over Rated Power (3 Min.): 675W
Peak Power (10 Sec.): 900W
Surge Power (30 Cycles): 900W
Voltage Range:
- NTS-450-112: 10.5~16.5Vdc
- NTS-450-124: 21~33Vdc
- NTS-450-148: 40~66Vdc
No Load Current (Saving Mode): 10W (default)
No Load Current (Non-Saving Mode): 10W (default)
DIP Input (Typ.): 1.2W (default)
Max. Input Current (Draw): 1.3W (default)
Efficiency (Typ.): 88% (NTS-450-112), 91% (NTS-450-124), 93% (NTS-450-148)
Battery Type: Lead Acid or Li-ion

AC Output:

Voltage:
- NTS-450-112/124: 100/110/115/120Vac selectable by DIP S.W (default setting 110Vac)
- NTS-450-212/224/248: 200/220/230/240Vac selectable by DIP S.W (default setting 230Vac)
Frequency: 50Hz/60Hz selectable by DIP S.W (default setting 60Hz for NTS-450-112/124, 50Hz for NTS-450-212/224/248)
Waveform: True sine wave (THD<3%)
Regulation: ±3.0% (rated input voltage)
Front Panel LED: Please refer to page 5 of the manual for details.
DC Voltage: 12V, 24V, 48V
Voltage Range (Typ.): 10.5~16.5Vdc, 21~33Vdc, 40~66Vdc
DC Current (Typ.): 25A, 14A, 10A
No Load (Non-Saving Mode): 10W
DIP Input (Typ.): 1.2W, 1.3W, 1.5W
Max. Current Draw: 1.3W, 1.5W, 1.7W
Efficiency (Typ.): 88%, 91%, 93%

Protection:

Output Overload/Short Circuit: Output voltage shut down, re-power on to recover.
Over Temperature: Output voltage shut down, re-power on to recover.
DC Input Under Voltage: 10.5~11.5Vdc for 180 sec., 21~23Vdc for 180 sec., 40~44Vdc for 180 sec.
DC Input Over Voltage: 15.5~16.5Vdc for 180 sec., 31~33Vdc for 180 sec., 62~66Vdc for 180 sec.
Battery Polarity: By internal fuse open.

Environment:

Working Temp.: -25~+70°C (Refer to "Derating Curve")
Working Humidity: 20%~90% RH non-condensing
Storage Temp., Humidity: -30~+70°C, 10~95% RH non-condensing
Vibration: 10~500Hz, 3G 10min/1cycle, 60min each along X, Y, Z axes.

Safety Standards:

Withstand Voltage: DC I/P-AC O/P:3.0KVAC, DC O/P-FG:1.5KVAC
EMC Emission: Complies with EN55032 (CISPR32) for 112,124,148 only (except for Type-UN), EN55032 (CISPR32) for 212,224,248 only (except for Type-UN).
EMC Immunity: Complies with EN61000-4-2,3,4,5,6,8,11, EN55035.

Others:

MTBF: 281.3K hrs min. (Telcordia TR/SR-332 (Bellcore))
Dimension: 21013055mm (LWH)
Packing: 0.9kg; 12pcs/11.4kg/1.74CUFT

Usage Features

Mobile Device Charging: The inverter can power mobile devices, making it ideal for camping, road trips, or remote work.
Home and Office Appliance Operation: It can run various home and office appliances, such as fans, TVs, radios, and laptops, providing flexibility in power access.
Portable Equipment: Its compact size and lightweight design make it easy to transport and use in different locations.
Vehicle Integration: Suitable for use in cars, RVs, and boats, allowing users to power AC devices on the go.
Off-Grid Solar Power System: Integrates seamlessly with off-grid solar power systems, providing reliable AC power where utility grids are unavailable.
Wireless Network: Can power wireless network equipment, ensuring connectivity in remote areas.
Telecom Data System: Suitable for telecom and data communication systems, providing stable power for critical infrastructure.
Remote ON-OFF Control: The inverter can be turned on or off remotely using a simple switch, enhancing convenience and safety.
Adjustable Output: Users can select the desired AC output voltage and frequency (50Hz/60Hz) via DIP switches, adapting to different regional power standards and device requirements.
Power Saving Mode: An optional power saving mode helps conserve battery life by reducing no-load current consumption.
LED Status Indicators: Clear LED indicators provide real-time status updates for DC input, load, and overall inverter operation, making it easy to monitor the device's performance and troubleshoot issues.

Maintenance Features

Battery Polarity Protection: The inverter includes internal fuse protection against reverse battery polarity, preventing damage from incorrect wiring.
Overload and Short Circuit Protection: Automatic shutdown and re-power on functionality protect the inverter and connected devices from damage due to overload or short circuits.
Over Temperature Protection: The inverter automatically shuts down if it overheats and re-powers on once the temperature returns to a safe level, preventing thermal damage.
Fan Lock Protection: The inverter monitors its cooling fan and will shut down if the fan locks, preventing overheating.
Abnormal DC Voltage Protection: The device protects against both under-voltage and over-voltage conditions on the DC input, safeguarding the battery and inverter.
Conformal Coating: The PCB boards are conformally coated, providing protection against dust, moisture, and chemical contaminants, which enhances durability and reliability in harsh environments.
User-Replaceable Fuses: The internal fuse for battery polarity protection is user-replaceable, simplifying maintenance in case of a polarity error.
Easy Troubleshooting with LED Indicators: The LED status indicators provide detailed information about the inverter's operational state, including normal operation, remote off, saving mode, abnormal status, DC input voltage ranges (green, orange, red), and load levels (green, orange, red). This makes it easy to diagnose issues such as output overload, abnormal DC voltage, over temperature, fan lock, or inverter failure.
Comprehensive Manual: The device comes with a detailed installation manual and specifications, providing clear instructions for setup, operation, and troubleshooting.
Accessory List: Optional accessories like pull handles and foot pads are available to enhance usability and installation flexibility.