Pure Sine Wave Inverter 12V DC to 120V AC Home/RV/Truck, off-Grid 5V/2.1A
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Product Highlights
- Pure Sine Wave Output: SPWM technology ensures pure sine wave output with THD < 3% for sensitive electronics.
- Multi-Input Voltage Support: Compatible with 12V, 24V, and 48V DC input systems for versatile solar applications.
- High Conversion Efficiency: Achieves up to 90% conversion efficiency with low working noise and high performance.
- Comprehensive Protection: Features overload, short circuit, over/under voltage, and overheating protection.
- Built-in USB Charging: Includes a 5V/2.1A USB port for convenient mobile device charging alongside AC loads.
- Robust Load Adaptability: Supports inductive, capacitive, resistive, and hybrid loads with strong shock resistance.
- Clear LCD Display: Equipped with LCD or LED digital display for clear status monitoring at a glance.
- Certified Safety: CE, RoHS, CCC, and LVD/EMC certified for reliable and safe performance.
Product Attributes
- Customization
- Available
- Nature of Source Flow
- Passive inverter
- Certification
- CCC, RoHS, CE, LVD/EMC
- Model NO.
- RSP-300W
- Output Power
- 300W
- Grid Type
- off-Grid Inverter
- Output Type
- Single
- Circuit Topologies
- Push-Pull Type
- Nature of Wave String
- Sine Wave Inverter
- Type
- DC/AC Inverters
- Peak Power
- 600W
- Output Waveform
- Pure Sine Wave Inverter
- USB Port
- 5V 2.1A
- Waveform Distortion
- Thd < 3% (Linear Load)
- Conversion Efficiency
- 90%
- Rated Power
- 300W
- Output Voltage
- AC100-120V or 220V-240V,50Hz or 60Hz
- Transport Package
- Standard Package
- Specification
- 38.5*31.5*37.5cm/ 12pcs
- Trademark
- ZHENGXI or OEM
- Origin
- Zhejiang, China
Product Images of Pure Sine Wave Inverter 12V DC to 120V AC Home/RV/Truck, off-Grid 5V/2.1A
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Product Description
RSP-300W Inverter
The RSP-300W is a compact and efficient pure sine wave inverter, specially designed for solar energy systems and mobile power applications. Fully compatible with photovoltaic (PV) input, it ensures seamless integration into off-grid and hybrid solar setups. Equipped with a built-in USB output, the RSP 300W allows convenient charging of mobile devices alongside traditional AC loads. With CE certification and robust protection features, it guarantees reliable and safe performance in demanding environments. Whether for home backup, RVs, or remote solar power, the RSP-300W is your smart and sustainable power solution.



Introduction of Power Inverter:
1. This inverter power supply adopts SPWM technology controlled by MCU microprocessing, pure sine wave output and waveform
is pure. Unique dynamic current loop control technology ensures reliable operation of the inverter.
2. Load adaptability, including inductive load, capacitive load, resistive load, hybrid load. High performance in overload
capacity and shock resistance.
3. It has perfect protection functions such as input overvoltage, undervoltage, overload, overheating and output short circuit
etc.
4. The sine wave inverter adopts LCD liquid crystal display mode, and the status is clear at a glance.
5. Stable performance, safe and reliable, long service life.
Feature and Advantage:
1. Efficiency: 85%-92%
2. The service life can reach about ten
3. The working noise is low and the efficiency is high
4. Strong bruise resistance ability
5. Good load capacity: inductive, charging and hybrid charging
6. Protection: low battery alarm/battery shutdown/overvoltage/overheating/output short/overload
| Model | RSP-300W | ||
| Rated Power | 300W | ||
| Peak power | 600W | ||
| Input Voltage | 12V/24V/48V | ||
| Output voltage | 100-120V or 220V-240V,50Hz or 60Hz | ||
| Output waveform | Pure sine wave inverter | ||
| USB port | 5V,2.1A | ||
| Waveform distortion | THD < 3% (Linear load) | ||
| Conversion efficiency | 90% | ||
| Product dimensions | 19.5*11*5.5cm | ||
| NET/gross weight of product | 0.85kg,1.05kg | ||
| Quantity/weight packed | 12 units,13.2kg | ||
| Packing size | 38.5*31.5*37.5cm | ||
| Voltage Range | (12V)9.55-15.5V | (24V)19.8-30.27V | (48V)40.2-60.4V |
| Under-pressure alarm | (12V)10.5±0.5V | (24V)21V±0.5V | (48V)42V±1V |
| Under-voltage protection | (12V)9.5±0.5V | (24V)20V±0.5V | (48V)40V±1V |
| Under-pressure recovery | (12V)13±0.5V | (24V)24V±0.5V | (48V)48V±1V |
| High Voltage Alarm | (12V)15.5±0.5V | (24V)31V±0.5V | (48V)61V±1V |
| High pressure recovery | (12V)14.8±0.5V | (24V)29.5±0.5V | (48V)59V±1V |
| Display options | High-definition LED digital display, liquid crystal display, no display | ||
| LED indicator light | Blue Light (AC output normal) ; red light flashing (undervoltage/overvoltage, overload, high temperature, short circuit) | ||
| Protection function | Undervoltage/overvoltage, overload, high temperature, ac short circuit protection (positive and negative wiring protection-replace the insurance) | ||
| Fuse | DC short circuit protection | ||
| Circuit topology | High frequency chain | ||
| Cooling mode | Intelligent air-cooled, built-in heat sink | ||




About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR263094". Items marked "" are certified.
Company Profile
ZHENGXI Group is a leading manufacturer specializing in the research, development, and sales of high and low voltage electrical equipment, with over 20 years of industry experience.
The group owns three wholly-owned or controlled subsidiaries, three major business divisions, and two advanced R&D and production bases, continuously innovating to provide the market with high-quality products. Our brands "ZHENGXI Electrical" and "PINEELE" are well respected and influential in the industry.
Our product range includes automatic voltage stabilizers, buck boost transformers, variable transformer, soft starters, inverters, and high/low voltage distribution cabinets. These products are certified by IEC, CE, RoHS, FCC, and ISO9001, ISO14001, ISO45001and have obtained over 130 technical patents.
The company has been recognized as a national high-tech enterprise, leading enterprise in new technology, outstanding design patent award in China, excellent technology in China, and among the first batch of "Good Product" brand enterprises in Zhejiang Province.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 555 Chezhan Road, Liushi Town, Wenzhou, Zhejiang, China
-
Plant Area
- 10000 square meters
-
Number of Employees
- 85
-
Registered Capital
- 50,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
- International Commercial Terms(Incoterms)
- FOB, EXW, CIF, DDP, Others
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Ningbo Port, Shanghai Port
-
Minimum Order Quantity
- 1 Pc
-
Supply Chain Partners
- 150
Our Production Capability & Technical Expertise
-
Main Products
- Voltage Stabilizer, Transformer
-
Production Lines
- 14
-
Production Machines
- Hydraulic press, Automated equipment, Drying oven, Winding machine, Vacuum impregnation machine
-
QA/QC inspectors
- 8 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Finished product checked by packing staff
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
R&D Engineers
- 6 people
-
Traceability of Raw Materials
- No
-
Test Reports for Raw Materials
- FCC, Others
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2014-03-11
- Export Year
- 2014-03-13
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 10
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO45001:2018, ISO14001
FAQ
- What is the rated power and peak power of this inverter?
- The rated power is 300W, and the peak power can reach 600W for short-term surges.
- Does this inverter support multiple input voltages?
- Yes, it supports 12V, 24V, and 48V DC input, making it suitable for various battery systems.
- What protection features are included?
- It includes protection against input overvoltage, undervoltage, overload, overheating, and output short circuit.
- Can I charge USB devices with this inverter?
- Yes, it has a built-in USB port providing 5V/2.1A output for charging mobile devices.
- What is the waveform distortion rate?
- The waveform distortion is THD < 3% under linear load conditions, ensuring pure sine wave output.
- Is this inverter suitable for inductive loads?
- Yes, it has strong load adaptability and can handle inductive, capacitive, resistive, and hybrid loads.
- What certifications does the product have?
- The inverter is certified with CCC, RoHS, CE, and LVD/EMC standards.
- What is the conversion efficiency?
- The conversion efficiency is up to 90%, ensuring high performance and energy savings.
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Product Groups
- Hot-selling products
- Single-Phase Voltage Stabilizer
- 3 Phase Voltage Stabilizer
- AC Transformers
- Variable Transformer
- VFD Variable Frequency Drive
- Power Transformer
- High and low voltage distribution cabinet
- Soft Starters
- Pure Sine Wave Inverter
- Voltage Stabilizer Components
- Lithium Battery
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