POWLAND Off-Grid Inverter 4kW 24V Pure Sine Wave Built-in 140A MPPT WiFi 110A AC Charger

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POWLAND Off-Grid Inverter 4kW 24V Pure Sine Wave Built-in 140A MPPT WiFi 110A AC Charger

Name: POWLAND Off-Grid Inverter 4kW 24V Pure Sine Wave Built-in 140A MPPT WiFi 110A AC Charger
Brand: powland
SKU: SMHA-4KW-U-PN
Price: 230.00 USD
Availability: InStock

$230.00 ~~$460.00~~

Shipping calculated at checkout.

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UL1741/FCC Certified
Dual MPPT
Pure Sine Wave

Smart BMS Communication
WiFi Remote Monitoring
1-6 Parallel Units

2-year warranty

Free Shipping & Ships in 24h
30-Day Money-Back Guarantee
User Manual SGR-12kW

High-Power Performance with Low-Voltage Efficiency

Delivers 4kW pure sine wave power from a standard 24V battery—no high-voltage upgrade needed.

Industry-Leading Solar & Utility Charging Capability

High-capacity 140A MPPT solar and 110A AC chargers maximize energy harvest and ensure rapid recharging from any source.

Exceptional Solar Flexibility & Extended MPPT Range

Up to 5,600W solar input and a wide 55-350Vdc MPPT range ensure flexible panel configurations and stable low-light performance.

Heavy-Duty Surge Capacity & Reliable Power Protection

Features an 8.0kW surge capacity (5s) and 10ms UPS transfer time for seamless, reliable protection of sensitive electronics.

Specification

Line Mode Specifications

Input Voltage Waveform	Sinusoidal (utility or generator)
Nominal Input Voltage	120Vac
Low Loss Voltage	95Vac±5V(UPS): 65Vac±7V(Appliances)
Low Loss Return Voltage	100Vac±5V(UPS): 70Vac±5V(Appliances)
High Loss Voltage	140Vac±5V
High Loss Return Voltage	135Vac±5V
Max AC Input Voltage	150Vac
Nominal Input Frequency	60Hz (It can be set in program 09)
Low Loss Frequency	55±1Hz
Low Loss Return Frequency	57±1Hz
High Loss Frequency	65±1Hz
High Loss Return Frequency	63±1Hz
Efficiency (Line Mode)	>95%（Rated R Ioad, battery full charged）

Inverter Mode Specifications

Rated Output Power	4.0KW
Output Voltage Regulation	120Vac±5%
Output Frequency	60Hz or 50Hz
Peak Efficiency	94%
Overload Protection	5s@≥150% load; 10s@110%~150% load
Surge Capacity	2* rated power for 5 seconds
Nominal DC Input Voltage	24Vdc
Cold Start Voltage	23.0Vdc
Low DC Warning Voltage	22.0Vdc
Low DC Warning Return Voltage	23.0Vdc
Low DC Cut-off Voltage	21.0Vdc
High DC Recovery Voltage	29Vdc
High DC Cut-off Voltage	31Vdc
No Load Power Consumption	<35W

Charge Mode Specifications

Charging Current (UPS) @ Nominal Input Voltage	110A
Floating Charging Voltage	27Vdc
Charging Algorithm	3-Step

Solar Charging Mode

Rated Power	5600w
PV Charge Current	140A
Max. PV Array Open Circuit Voltage	350Vdc
PV Array MPPT Voltage Range	55-350Vdc
Standby Power Consumption	2W
Battery Voltage Accuracy	+/-0.3%
Pv Voltage Accuracy	+/-2v

Payment & Security

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	POWLAND Hybrid Solar Inverter 12kW 48V Split Phase Pure Sine Wave WiFi UL1741 FCC Certified Shop	POWLAND Off-Grid Inverter 4kW 24V Pure Sine Wave Built-in 140A MPPT WiFi 110A AC Charger Shop	POWLAND 6.5kW Solar Hybrid Inverter Charger 48V DC to 120V AC Built in 120A MPPT Charge Controller up to 6 Parallel WiFi Shop	POWLAND 10kW Grid-Tied Hybrid Solar Inverter 48V DC to 120V/240V AC Split Phase MPPT WiFi UL1741 Shop
Rated Power	12.0kW (Split phase)/7.2kW (Single phase)/48V System	4.0kW / 24V System	6.5kW / 48V System	10.0kW / 48V System
Surge Power	24kVA(Heavy Duty )	8.0kW (Up to 5 sec)	12kVA	10.0kW
Max PV Input	12000W(6000W + 6000W Dual MPPT)	5600W	9000W(4500W + 4500W Dual MPPT)	9000W
Charging Current	160A AC / 220A PV(220A Ultra-Fast Hybrid）	110A AC / 140A PV	120A AC / 150A PV (150A Max Hybrid)	250A Max PV
AC Output	240Vac (L1/L2 Split Phase)	120Vac ± 5%	120Vac	120V/240V Split Phase

What Our Customers Say

Frequently Asked Questions

User Manual

SMHA-4KW-U-PN

1. Can this 4kW inverter run heavy-duty appliances like air conditioners or water pumps?

Yes. With an exceptional 8.0kW surge capacity (sustained for 5 seconds), it easily handles the high-starting currents of motorized appliances like air conditioners, refrigerators, and deep well pumps without tripping.

2. Does this inverter require a battery to operate under solar power?

No. Thanks to its smart battery-free function, you can power your loads directly from solar panels or grid utility. It’s a great way to save on initial battery costs while enjoying clean energy.

3. Will my computer or home server reboot when the grid power goes out?

Not at all. It features a lightning-fast 10ms UPS transfer time. When a blackout occurs, it switches to backup power seamlessly, ensuring sensitive electronics like PCs, routers, and TVs keep running without interruption.

4. How does the system perform on cloudy days or in suboptimal weather?

It performs reliably. Equipped with an ultra-wide MPPT range (55-350Vdc) and a massive 140A charge controller, the inverter optimizes energy efficiency even under low-light or poor weather conditions.

5. Can I install this inverter in an unheated garage or a hot outdoor enclosure?

Yes. It is engineered for climate resilience, with an operating temperature range of 0°C to 55°C and a safe storage range of -15°C to 60°C. Perfect for unheated garages, off-grid cabins, or utility rooms.

6. What happens if my lithium battery enters sleep mode due to over-discharge?

No worries. The inverter features built-in auto lithium-battery activation. It sends an automatic signal to safely "wake up" dormant lithium cells, restoring your system without manual jump-starting.

7. Can I adjust the output voltage to match my specific household electronics?

Yes. Under battery mode, the output AC voltage can be easily adjusted between 100VAC, 110VAC, and 120VAC via the LCD interface, ensuring perfect compatibility with your specific appliances.

8. Can I check my solar generation and system status when I am away from home?

Yes, with the optional WiFi monitoring function. By pairing it with our dedicated app, you can track your solar harvest, battery levels, and energy consumption remotely on your smartphone anytime, anywhere.

9. How does the inverter intelligently balance solar, battery, and grid power?

It features customizable input priorities. You can program the system via the touch-LCD screen to maximize solar usage during the day, switch to battery at night, and use grid utility only as a smart backup to cut electricity bills.

Free Shipping

Shipped from our Polish warehouse. All products are free of shipping charges.

Shipping & Delivery

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POWLAND Off-Grid Inverter 4kW 24V Pure Sine Wave Built-in 140A MPPT WiFi 110A AC Charger

High-Power Performance with Low-Voltage Efficiency

Industry-Leading Solar & Utility Charging Capability

Exceptional Solar Flexibility & Extended MPPT Range

Heavy-Duty Surge Capacity & Reliable Power Protection

Specification

Total Power Freedom. Single-Source Efficiency.

Ultimate Power Control: 4kW Output with Battery-Free Versatility

Auto Lithium Activation & Smart Comms

All-Weather Reliability: Engineered for Extreme Climates

Versatile Solar Power Anywhere You Need It

Smart Touch Interaction & Instant Monitoring

Delivery and Shipping

Choose the One That Fits Your Needs

POWLAND Hybrid Solar Inverter 12kW 48V Split Phase Pure Sine Wave WiFi UL1741 FCC Certified