1. Introduction
This manual provides essential information for the safe and effective use of your XWST DC/DC Converter Regulator. This device is designed to efficiently step down a DC input voltage of 36V-48V (within a range of 20V to 60V) to a stable 12V DC output, delivering up to 1A and 12W of power. Its robust, waterproof design makes it suitable for various applications, including golf carts, club cars, and other electronic systems requiring a stable 12V supply from a higher voltage source.
2. Product Features
- Input Voltage: DC 20V-60V (Nominal 36V/48V)
- Output Voltage: DC 12V
- Output Current: 1A
- Output Power: 12W
- High Conversion Efficiency: Synchronous Rectification Technology ensures efficiency of ≥93%.
- Comprehensive Protection: Built-in intelligent chip provides protection against over-load, over-current, over-temperature, short-circuit, and over-voltage.
- Durable Construction: Compact aluminum shell with epoxy potting ensures IP67 waterproof, anti-dust, and anti-shock protection.
- Wide Operating Temperature: Functions reliably in environments ranging from -40°C to 80°C.
- Stable Performance: Features high-frequency resistance and pure copper coils for consistent output.
3. Specifications
| Specification | Value |
|---|---|
| Brand | XWST |
| Model Number | 48to121A12W |
| Input Voltage Range | DC 20V-60V |
| Nominal Input Voltage | DC 48V (compatible with 36V systems) |
| Output Voltage | DC 12V |
| Output Current | 1A |
| Output Power | 12W |
| Conversion Efficiency | ≥93% |
| Ripple Wave | 40mV |
| Starting Delay Time | ≤2S |
| Waterproof Rating | IP67 |
| Operating Temperature | -40°C to 80°C |
| Dimensions (L x W x H) | 46mm x 27mm x 14mm (1.81 x 1.06 x 0.55 inches) |
| Mounting Hole Distance | 56mm |
| Mounting Hole Size | 4mm |
| Material | Aluminum shell with epoxy potting, ABS flame-retardant casing |
4. Installation
Proper installation is crucial for the safe and reliable operation of the DC/DC converter. Follow the wiring diagram and instructions carefully.
4.1 Wiring Diagram
Image: Wiring diagram illustrating connections for the XWST DC/DC Converter. Red wire is Input+, Black wire is Input-, Yellow wire is Output+, and another Black wire is Output-.
4.2 Connection Steps
- Identify Wires: The converter has four wires. Two for input (Red for positive, Black for negative) and two for output (Yellow for positive, Black for negative).
- Connect Input: Connect the Red wire to the positive (+) terminal of your 36V/48V DC power source. Connect the Black input wire to the negative (-) terminal of your power source. Ensure the input voltage is within the 20V-60V range.
- Connect Output: Connect the Yellow wire to the positive (+) terminal of your 12V DC load device. Connect the Black output wire to the negative (-) terminal of your load device.
- Secure Connections: Ensure all connections are tight and properly insulated to prevent short circuits.
- Mounting: The converter features mounting ears with a hole distance of 56mm and a hole size of 4mm for secure installation. Mount the unit in a location that allows for adequate heat dissipation, although its design is optimized for thermal management.
Important: Always verify polarity before connecting the converter to avoid damage to the unit or connected devices.
5. Operation
Once correctly installed, the XWST DC/DC Converter operates automatically. It will convert the higher input voltage to a stable 12V output for your connected devices.
- Automatic Protection: The intelligent chip continuously monitors for over-load, over-current, over-temperature, short-circuit, and over-voltage conditions, automatically protecting the converter and connected devices.
- No User Adjustments: The converter is a fixed-output device and does not require any user adjustments for voltage or current.
6. Maintenance
The XWST DC/DC Converter is designed for minimal maintenance due to its robust and sealed construction.
- Regular Inspection: Periodically check all wiring connections to ensure they remain secure and free from corrosion.
- Cleaning: If necessary, gently wipe the exterior of the converter with a dry cloth to remove dust or debris. Do not use harsh chemicals or immerse the unit in liquids beyond its IP67 rating.
- Environmental Considerations: While the unit operates in a wide temperature range, ensure it is not exposed to extreme heat sources or direct sunlight for prolonged periods, especially if operating at maximum load.
Image: The XWST DC/DC Converter demonstrating its IP67 waterproof capability, suitable for challenging environments.
7. Safety Information
Adhere to the following safety guidelines to prevent injury or damage to the product and connected equipment:
- Correct Voltage: Ensure the input voltage is within the specified range (DC 20V-60V). Exceeding this range can damage the converter.
- Polarity: Always observe correct positive (+) and negative (-) polarity for both input and output connections. Incorrect polarity will cause damage.
- Load Capacity: Do not exceed the maximum output current of 1A or power of 12W. Overloading can trigger protection features or cause permanent damage.
- Ventilation: Although waterproof, ensure the converter is not completely enclosed without any airflow, especially during continuous high-load operation, to aid in heat dissipation.
- Professional Installation: For complex electrical systems, consider professional installation to ensure proper wiring and safety.
- Disconnect Power: Always disconnect the power source before making or changing any connections to the converter.
8. Troubleshooting
If you encounter issues with your DC/DC converter, refer to the following common troubleshooting steps:
- No Output Voltage:
- Verify that the input power source is active and providing voltage within the 20V-60V range.
- Check all input and output wiring connections for correct polarity and secure contact.
- Ensure the load connected does not exceed the converter's 1A/12W capacity.
- Intermittent Operation:
- Inspect connections for looseness or poor contact.
- Confirm the input voltage is stable and not fluctuating.
- Reduce the load to see if the issue resolves, indicating an overload condition.
- Converter Overheating:
- Ensure the load is within the specified limits (1A, 12W).
- Check if the converter is installed in a location with sufficient airflow, even though it is designed for wide temperature operation.
If problems persist after following these steps, please contact customer support.
9. Warranty and Support
XWST stands behind the quality of its products.
- Warranty: This product is covered by a 1-year replacement assurance from the date of purchase.
- Customer Support: We offer lifetime after-sale service. For any questions, technical assistance, or warranty claims, please contact XWST customer service.
