1. Product Overview
The WZRELB 3000W 24V DC to 120V/240V AC Split Phase Pure Sine Wave Inverter is designed to convert 24V DC battery power into stable 120V/240V AC electricity. This inverter features a pure sine wave output, making it suitable for sensitive electronics. It offers 3000 watts of continuous power and a 6000-watt peak surge capability, ideal for various applications including off-grid systems, RVs, boats, and emergency power backup.
Key features include a built-in soft starter, high-frequency design, and an LCD display for monitoring system status. Multiple output options are available, including 120V AC outlets and a 240V AC hardwire terminal.
Figure 1: WZRELB 3000W Split Phase Pure Sine Wave Inverter.
2. Package Contents and Components
2.1 Package Contents
Upon unpacking, ensure all items listed below are present:
- 1 x WZRELB 3000W Split Phase Pure Sine Wave Inverter Unit
- 1 x Set of Battery Cables (7AWG)
- 1 x User Manual
- Spare Fuses
Figure 2: Inverter package contents, including the inverter unit, battery cables, spare fuses, and user manual.
2.2 Inverter Components
Familiarize yourself with the inverter's front and rear panels:
Figure 3: Front panel with 120V AC outlets and 240V AC hardwire terminal. Each 120V circuit supports up to 1500W, and the 240V output supports up to 3000W.
Figure 4: Rear panel with DC input terminals (positive and negative) and cooling fans.
3. Installation Guide
3.1 Battery Connection (24V System)
This inverter requires a 24V DC battery system. If using 12V batteries, connect two 12V batteries in series to achieve 24V. Ensure correct polarity.
Video 1: This video demonstrates the unboxing, features, installation, and application of a WZRELB Split Phase Pure Sine Wave Inverter. Note that the video refers to a 6000W model, while this manual is for the 3000W model. The general connection principles remain applicable.
3.2 DC Connection Steps (Spark-Proof Nut)
- Connect the Negative Cable: First, connect the black (negative) cable to the negative terminal of your 24V battery bank. Then, connect the other end of the black cable to the negative terminal of the inverter.
- Contacting Spark-Proof Terminal: After connecting the negative cable, contact the other side of the red (positive) cable to the spark-proof terminal on the inverter for 3-5 seconds. This helps to prevent sparks during the final connection.
- Connect the Positive Cable: Finally, connect the red (positive) cable to the positive terminal of the inverter to complete the wiring.
Ensure all connections are tight to maintain stable current flow and prevent overheating. Use the cables provided with the inverter.
3.3 AC Panel Wiring
The inverter provides multiple AC output options, including standard 120V AC outlets and a hardwire terminal for direct connection to a circuit panel. The hardwire terminal supports L1 (hot 1), L2 (hot 2), N (neutral), and G (ground) connections for 120V and 240V applications.
Figure 5: Wiring diagram for connecting the inverter to a circuit panel, illustrating L1, L2, N, and G connections for 120V and 240V outputs.
4. Operating Instructions
4.1 LCD Display
The inverter features an LCD display that provides real-time information about its operational status, including battery voltage, output voltage, temperature, and load status.
Figure 6: LCD display showing inverter working status, battery voltage and capacity, internal temperature, and AC output voltage/amperage for 120V and 240V circuits.
4.2 Powering Appliances
The inverter can power a variety of AC appliances. It provides two 120V AC circuits, each capable of supporting up to 1500W, and a 240V AC output with a maximum of 3000W. Ensure the total load does not exceed the inverter's continuous power rating of 3000W.
Figure 7: The inverter can power various appliances simultaneously, demonstrating its dual AC output capability for 120V and 240V devices.
5. Safety Features and Protections
The WZRELB inverter is equipped with multiple protection features to ensure safe and reliable operation:
- Input Low Voltage Protection: Shuts down the inverter if the DC input voltage drops below a safe operating level, protecting your batteries from over-discharge.
- Input High Voltage Protection: Activates if the DC input voltage exceeds the maximum safe limit, preventing damage to the inverter and connected components.
- Overload Protection: Automatically shuts down the inverter if the connected load exceeds its rated capacity, preventing damage to the inverter and appliances.
- Over Temperature Protection: Engages if the internal temperature of the inverter becomes too high, utilizing intelligent temperature-controlled cooling fans and shutting down if necessary.
- Short Circuit Protection: Protects against short circuits in the output, preventing electrical damage.
- Battery Reverse Protection: Prevents damage from incorrect battery polarity connections.
- Internally Fused: Provides additional protection against overcurrents.
The LCD display will indicate the status of these protections when activated.
6. Technical Specifications
| Specification | Value |
|---|---|
| Brand | WZRELB |
| Model Name | SPVC300024 |
| Rated Continuous Power | 3000W |
| Surge Output Power | 6000W |
| DC Input Voltage | 24V |
| DC Input Voltage Range | 20-30VDC |
| High Battery Shut Down | 19.5V ± 1V (Note: This value seems inconsistent with 24V system, typically refers to 12V battery cutoff. Refer to product label for exact 24V system cutoff.) |
| Low Voltage Shut Down | 40V (Note: This value seems inconsistent with 24V system, typically refers to 48V battery cutoff. Refer to product label for exact 24V system cutoff.) |
| AC Output Voltage (Nominal) | 120VAC and 240VAC |
| AC Output Frequency | 60 ± 2Hz |
| AC Output Waveform | Pure Sine Wave |
| Conversion Efficiency | ≥91.6% |
| Ambient Operating Temperature Range | 32℉-104℉ / 0℃-70℃ |
| Cooling Method | Intelligent temperature controlled fan |
| Number of Outlets | 4 (120V AC) + Hardwire Terminal (120V/240V) |
| Item Dimensions (L x W x H) | 16.2"L x 9.7"W x 3.7"H |
| Item Weight | 11.5 Pounds |
Note: Some voltage specifications in the provided data (High battery shut down: 19.5V±1V, Low voltage shut down: 40V) appear to be inconsistent with a 24V system. Please refer to the product label or contact WZRELB support for precise 24V system cutoff values.
7. Troubleshooting
The inverter's LCD display provides indicators for various protection states. If the inverter stops functioning or displays an error, check the following:
- No Output / Low Voltage Indication: Check your battery voltage. If it's too low, the inverter will shut down to protect the battery. Recharge or replace the battery.
- Overload Indication: Reduce the total wattage of connected appliances. The inverter will shut down if the load exceeds its capacity. Disconnect some devices and restart the inverter.
- Over Temperature Indication: Ensure the inverter has adequate ventilation. Clear any obstructions from the cooling fans. Allow the unit to cool down before restarting.
- High Voltage Indication: Verify the input voltage from your battery bank. If it's too high, disconnect the inverter immediately and check your battery system.
- Short Circuit Indication: Disconnect all AC loads and check for any short circuits in your wiring or appliances.
For persistent issues, refer to the detailed troubleshooting section in the full user manual or contact WZRELB customer support.
8. Warranty and Support
The WZRELB 3000W Split Phase Pure Sine Wave Inverter comes with a 12-month warranty. WZRELB also provides lifetime technical support for this product.
For warranty claims, technical assistance, or any questions regarding your inverter, please refer to the contact information provided in your full user manual or visit the official WZRELB website.
