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Samlex America  |  SKU: DRSA-104640

Samlex 3000 Watt Pure Sine Wave Inverter [NTX-3000S-12]

$857.60 $1,072.00
Shipping calculated at checkout.

Description

Samlex 3000 Watt Pure Sine Wave Inverter – 12V [NTX-3000S-12]

High-Efficiency Marine & RV Inverter with LCD Remote and 6000W Surge Capacity

Power your marine, RV, or off-grid setup with confidence using the Samlex NTX-3000S-12, a 3000W pure sine wave inverter designed for sensitive electronics and demanding applications. With 6000W surge handling, IP66 weatherproof durability, and an included LCD remote, this inverter delivers clean, reliable AC power in any environment.

Ideal for appliances, tools, TVs, marine stereos, and more, the NTX-3000S-12 provides stable 115V output and 90.5% efficiency, backed by FCC and ETL certifications. Whether you’re cruising offshore or camping off-grid, this inverter ensures quiet, dependable performance where it matters most.


Why You'll Love It

  • 3000W Continuous Output – Delivers utility-grade power for electronics and appliances

  • Pure Sine Wave Output – Safe for laptops, stereos, navigation equipment, and medical devices

  • 6000W Surge Power – Hypersurge™ technology handles motor start-ups and compressors

  • Three 15A Receptacles – Built-in overload protection with individual circuit breakers

  • Weatherproof Build – IP66 protection for marine and RV environments

  • LCD Remote Control – NTX-RC included with 16 ft cable for convenient power monitoring

  • Energy-Efficient Design – 90.5% efficiency and low idle current extend battery life

  • Certified Safe – ETL-listed, FCC-compliant, and designed to UL and CSA standards


Perfect For

  • Marine power systems: Boats, yachts, or houseboats

  • RV or van life: Power appliances and entertainment systems

  • Off-grid solar setups: Cabins, tiny homes, or mobile workstations

  • Backup emergency power: Keep communication, lighting, or medical gear running during outages


Technical Specifications

Feature Details
Model NTX-3000S-12
Input Voltage 12 VDC (10.5 – 16.3V range)
Output Voltage 115 VAC, 60 Hz
Continuous Power 3000 Watts
Surge Capacity 6000 Watts
Waveform Pure Sine Wave
Efficiency 90.5%
Receptacles Three 15A AC with circuit breakers
Remote Control LCD NTX-RC (16 ft cable)
Dimensions 8.50" W x 17.75" L x 3.62" H
Weight 12.0 lbs (5.5 kg)
Certifications ETL to UL & CSA standards, FCC-compliant
Operating Temp 32°F to 104°F (0°C to 40°C)
Warranty 2-Year Limited Warranty

What’s in the Box

  • Samlex NTX-3000S-12 Inverter

  • NTX-RC LCD Remote Control with 16 ft Cable

  • Mounting Hardware

  • Owner’s Manual

Note: This product is non-returnable. Contact Samlex for warranty support.


Why Choose the NTX-3000S-12?

Clean, stable power for sensitive electronics
Compact, lightweight build fits tight spaces
IP66-rated for marine and harsh outdoor conditions
High efficiency and low idle draw save battery life
Real-time LCD remote monitoring included

Highly rated for marine and RV use, the NTX-3000S-12 installs easily and delivers reliable performance with minimal fan noise and full surge protection. Customers love its dependability, compact form factor, and value at this power range.


Frequently Asked Questions

Is this inverter marine-rated?
Yes, the NTX-3000S-12 features IP66-level protection against dust and water spray, making it ideal for boats and coastal environments.

Can I use this inverter with sensitive electronics?
Absolutely. Its pure sine wave output provides clean, stable power like you’d get from a utility grid.

Does it come with a remote control?
Yes. The included NTX-RC remote allows you to monitor voltage, output, and inverter status from up to 16 feet away.

Can it power a refrigerator or power tools?
Yes. With 3000W continuous and 6000W surge, this inverter is capable of handling startup loads from compressors and motors.


Shop the Samlex NTX-3000S-12 Inverter Today

Take control of your off-grid or marine power with the Samlex NTX-3000S-12. With 3000W of clean sine wave power, a rugged weatherproof build, and included LCD remote, it’s the smart choice for serious power on the move. Order today and power your next adventure with confidence.


Quick Guide (pdf)
Owner's Manual (pdf)
Brochure (pdf)

8.50" W x 17.75" L x 3.62" H


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Samlex NTX-3000S-12 3000 watt pure sine wave inverter with LCD remote control mounted in a boat for reliable marine power
Samlex America

Samlex 3000 Watt Pure Sine Wave Inverter [NTX-3000S-12]

$857.60 $1,072.00

Samlex 3000 Watt Pure Sine Wave Inverter – 12V [NTX-3000S-12]

High-Efficiency Marine & RV Inverter with LCD Remote and 6000W Surge Capacity

Power your marine, RV, or off-grid setup with confidence using the Samlex NTX-3000S-12, a 3000W pure sine wave inverter designed for sensitive electronics and demanding applications. With 6000W surge handling, IP66 weatherproof durability, and an included LCD remote, this inverter delivers clean, reliable AC power in any environment.

Ideal for appliances, tools, TVs, marine stereos, and more, the NTX-3000S-12 provides stable 115V output and 90.5% efficiency, backed by FCC and ETL certifications. Whether you’re cruising offshore or camping off-grid, this inverter ensures quiet, dependable performance where it matters most.


Why You'll Love It


Perfect For


Technical Specifications

Feature Details
Model NTX-3000S-12
Input Voltage 12 VDC (10.5 – 16.3V range)
Output Voltage 115 VAC, 60 Hz
Continuous Power 3000 Watts
Surge Capacity 6000 Watts
Waveform Pure Sine Wave
Efficiency 90.5%
Receptacles Three 15A AC with circuit breakers
Remote Control LCD NTX-RC (16 ft cable)
Dimensions 8.50" W x 17.75" L x 3.62" H
Weight 12.0 lbs (5.5 kg)
Certifications ETL to UL & CSA standards, FCC-compliant
Operating Temp 32°F to 104°F (0°C to 40°C)
Warranty 2-Year Limited Warranty

What’s in the Box

Note: This product is non-returnable. Contact Samlex for warranty support.


Why Choose the NTX-3000S-12?

Clean, stable power for sensitive electronics
Compact, lightweight build fits tight spaces
IP66-rated for marine and harsh outdoor conditions
High efficiency and low idle draw save battery life
Real-time LCD remote monitoring included

Highly rated for marine and RV use, the NTX-3000S-12 installs easily and delivers reliable performance with minimal fan noise and full surge protection. Customers love its dependability, compact form factor, and value at this power range.


Frequently Asked Questions

Is this inverter marine-rated?
Yes, the NTX-3000S-12 features IP66-level protection against dust and water spray, making it ideal for boats and coastal environments.

Can I use this inverter with sensitive electronics?
Absolutely. Its pure sine wave output provides clean, stable power like you’d get from a utility grid.

Does it come with a remote control?
Yes. The included NTX-RC remote allows you to monitor voltage, output, and inverter status from up to 16 feet away.

Can it power a refrigerator or power tools?
Yes. With 3000W continuous and 6000W surge, this inverter is capable of handling startup loads from compressors and motors.


Shop the Samlex NTX-3000S-12 Inverter Today

Take control of your off-grid or marine power with the Samlex NTX-3000S-12. With 3000W of clean sine wave power, a rugged weatherproof build, and included LCD remote, it’s the smart choice for serious power on the move. Order today and power your next adventure with confidence.


Quick Guide (pdf)
Owner's Manual (pdf)
Brochure (pdf)

View product