• Description

Solis 6kW Single Phase Inverter 1P6K-4G-US-APST

The Solis 1P6K-4G-US-APST is a 6kW single-phase grid-tied inverter featuring built-in APS module-level rapid shutdown and optional revenue grade metering. Engineered for U.S. residential installations, it combines safety, performance, and compliance with modern solar codes.

Key Benefits

High Efficiency: Up to 97.8% max efficiency with 97.5% CEC efficiency for optimal energy yield.

Module-Level Shutdown: Built-in APS transmitter supports rapid shutdown for UL 3741 compliance.

Flexible MPPT Design: Three MPPT inputs allow for optimized string layout across roof orientations.

Revenue Grade Metering: Optional ANSI C12.20-2010 compliant meter supports utility programs.

Outdoor Ready: Type 4X enclosure supports installation in harsh weather conditions.

Special Technology

Transformerless Design: Lightweight and efficient with low self-consumption (< 1W at night).

Built-in AFCI: Integrated arc fault protection enhances system safety.

Advanced Communication: RS485 with optional Wi-Fi and cellular for remote monitoring.

Warranty

Includes a 10-year standard warranty with optional extensions available.

Best Uses

Residential Rooftop Systems: Ideal for single-phase homes needing rapid shutdown and utility metering compliance.

Code-Compliant Installations: UL1741SB, NEC 690.12-2020, and Rule 21 compliant.

Multi-Roof Designs: Three MPPTs support varying panel orientations or shaded areas.

Specifications Table

Specification Data
Model Solis 1P6K-4G-US-APST
Rated Output Power 6,000 W
Max Input Voltage 600 V
MPPT Voltage Range 100 – 500 V
MPPT / Strings 3 MPPT / 3 Strings
Max DC Input Current 3 × 14 A
Max Short-Circuit Current 3 × 22 A
Max Output Current (240V) 25 A
Max Output Current (208V) 28.8 A
Power Factor > 0.99 (Adjustable 0.8 lead/lag)
Max Efficiency 97.8%
CEC Efficiency 97.5%
Topology Transformerless
Cooling Natural convection
Weight 45.2 lbs 
Dimensions (W × H × D) 13.1 × 28.8 × 9.8 in
Enclosure Rating Type 4X (NEMA 4X)
Operating Temp Range -13°F to 140°F (-25°C to 60°C)
Communication RS485, Optional Wi-Fi/Cellular
Certifications UL1741SB, IEEE 1547, FCC Part15, Rule 21, NEC 690.12-2020

 

About Solis:

Solis is a global leader in solar inverter technology, offering efficient, reliable, and affordable grid-tied and hybrid inverters for residential, commercial, and utility-scale applications. Known for innovation and durability, Solis products are engineered to optimize energy yield and support smart energy management through advanced monitoring solutions. With a strong global presence and commitment to sustainability, Solis helps accelerate the transition to clean, renewable energy.

FAQs

Is the 1P6K-4G-US-APST-RGM compatible with my solar panels?
Yes, the 1P6K-4G-US-APST-RGM is compatible with most modern PV modules. Your installer will confirm optimal compatibility based on your system's voltage and current requirements.

Do I need a battery to use the 1P6K-4G-US-APST-RGM?
No battery is required. This hybrid inverter can operate in grid-tied mode without a battery. However, pairing it with a battery enables energy storage for nighttime use or backup during outages.

How do I monitor the performance of my inverter?
The 1P6K-4G-US-APST-RGM supports Wi-Fi and app-based monitoring, letting you view real-time production, system health, and battery status (if installed) from your smartphone or web portal.

What happens if there is a power outage?
If equipped with a compatible battery and backup configuration, this inverter can power critical loads during an outage. Without a battery, it will shut down in compliance with grid safety regulations.

How do I maintain the 1P6K-4G-US-APST-RGM?
The unit requires minimal maintenance. Periodically inspect for warning indicators, ensure proper ventilation, and consult your installer for recommended service intervals.

What is the efficiency of the 1P6K-4G-US-APST-RGM?
It offers high operational efficiency. For specific performance figures such as CEC or peak efficiency, refer to the manufacturer’s datasheet.

What are the input and output voltage ranges?
This inverter supports 240V split-phase output. Refer to the technical documentation for exact DC input range, maximum current, and AC output specifications.

What communication protocols does it use?
The inverter supports Wi-Fi, Zigbee, and RS485. These protocols enable integration with monitoring systems and compatible smart energy devices.

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.
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Feedback From Our Customers

At Green Vista Living, we pride ourselves on delivering top-quality products and exceptional service to solar professionals and homeowners alike. Here's what our customers have to say about their experiences with us.

Kevin Leary
May 18, 2025
★★★★★

Incredible Tech Support from Anees of Green Vista Living. Exceptional service and went above and beyond on every question.

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Off grid Kit • Dec 21, 2025
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Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

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