1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your GEYA VSR8 Solid State Relay. The VSR8 series includes models such as SSR-10DA, SSR-25DA, SSR-40DA, SSR-60DA, SSR-80DA, SSR-100DA, and SSR-120DA, designed for DC input control and AC output switching. Please read this manual thoroughly before using the product.
2. Safety Information
WARNING: Electrical shock hazard. Installation and maintenance should only be performed by qualified personnel.
- Always disconnect all power sources before installing, wiring, or performing any maintenance on the relay.
- Ensure that the relay terminals are wired firmly. Loose wiring can cause abnormal heating and potential damage to the product and connected equipment.
- The heat generated by the operation of the relay must be effectively dissipated through the bottom plate. Ensure the relay bottom plate is in close contact with an appropriate radiator, installed firmly, and the contact surface is equipped with thermal conductive gaskets or coated with thermal conductive silicone grease.
- When the working environment temperature is high, refer to the temperature curve in the specifications to reduce the rating for use to prevent overheating.
- During use, the side and bottom of the product may generate heat. Allow the unit to cool down before touching it.
- Verify all connections are correct before applying power.
3. Product Overview
The GEYA VSR8 Solid State Relay is a high-quality device designed for reliable switching applications. It features a DC input control and AC output, making it suitable for various industrial automation and control systems.
Key Features:
- ON Brand Optocoupler: Ensures reliable isolation between control and load circuits.
- Reliable PCB: Designed for stable and long-lasting performance.
- Nickel-plated Copper Terminal: Provides excellent conductivity and corrosion resistance.
- Flap Design: Facilitates secure wiring and protection.
- Integrated SSR: Compact and efficient design.
Product Visuals:
4. Specifications
General Properties:
- Applicable Object: Electromechanica
- Contact Arrange: SPDT
- High-concerned chemical: None
- Power Source: DC
- Theory: Time Relay
- is_customized: Yes
- Contact Load: Low Power
- Model Number: VSR8 Solid State Relay
- Brand Name: GEYA
- Voltage: 24V
- Origin: Mainland China
- Certification: CE
- Use: General Purpose
- Protect Feature: Sealed
- Product Name: VSR8 Solid State Relay
- Control Voltage: 3-32VDC
- Output Voltage: 24-480V
- Function: DC control AC, AC control AC, DC control DC
- Load Current: 10A 25A 40A 60A 80A 100A 120A
- Off Leakage Current: less than 8mA
- On-off Time: less than 10ms
- Ambient Temperature: -30~+80℃
Detailed Technical Data:
5. Installation and Wiring
Proper installation and wiring are crucial for the safe and reliable operation of the VSR8 Solid State Relay. Refer to the wiring diagram and dimensions below.
Wiring Instructions:
- Connect the DC control voltage (3-32VDC) to the input terminals (3+ and 4-).
- Connect the AC load (24-480VAC) to the output terminals (1~ and 2~).
- Ensure all connections are tight and secure. The recommended installation torque for M4 terminals is (1.2-2.0) N·m, and for M5 terminals is (2-3) N·m.
- Mount the relay firmly to a suitable heat sink to ensure proper heat dissipation. Use thermal conductive paste or pads between the relay and the heat sink.
Wiring Diagram and Dimensions:
6. Operation
The GEYA VSR8 Solid State Relay operates by using a low-voltage DC signal to control a high-voltage AC load. When the appropriate DC control voltage (3-32VDC) is applied to the input terminals, the relay switches on, allowing the AC current to flow through the load terminals. When the control voltage is removed, the relay switches off.
This model is primarily a Zero Crossing Type, meaning it switches the AC load on or off when the AC voltage crosses zero, which helps to reduce electrical noise and extend the life of the load. If a Random-on Switching type is required for specific applications, please ensure you have the correct model or contact GEYA for customization options.
7. Maintenance
The VSR8 Solid State Relay is designed for minimal maintenance. However, regular checks can ensure its longevity and optimal performance:
- Periodically inspect all wiring connections to ensure they remain firm and free from corrosion.
- Ensure the heat sink is free from dust and debris to maintain effective heat dissipation. Clean if necessary.
- Check for any signs of physical damage or discoloration on the relay housing, which could indicate overheating or other issues.
- Verify that the ambient operating temperature remains within the specified range of -30~+80℃.
8. Troubleshooting
If you encounter issues with your GEYA VSR8 Solid State Relay, consider the following common problems and solutions:
- Relay not switching on/off:
- Check if the control voltage is within the specified range (3-32VDC).
- Verify the polarity of the DC input connections.
- Ensure the load is correctly connected and within the relay's current and voltage ratings. - Abnormal heating of the relay:
- Check if the relay is properly mounted to a heat sink with thermal paste/pads.
- Ensure all wiring connections are tight; loose connections can cause resistance and heat.
- Verify that the load current does not exceed the relay's maximum rating. - Intermittent operation:
- Inspect for loose wiring or damaged insulation.
- Check for unstable control voltage or power supply fluctuations. - Product damage:
- This can often be caused by exceeding load current/voltage ratings or improper heat dissipation. Refer to specifications and ensure correct application.
If problems persist after checking these points, contact GEYA customer support for further assistance.
9. User Tips
- The GEYA VSR8 Solid State Relay is suitable for use across all seasons, thanks to its wide ambient temperature operating range of -30℃ to +80℃.
- This product is designed for general-purpose applications and can be effectively integrated into various control systems and environments.
- For optimal performance and longevity, always ensure proper heat dissipation by securely mounting the relay to a suitable heat sink.
- The VSR8 series offers multiple load current capacities (10A, 25A, 40A, 60A, 80A, 100A, 120A). Choose the appropriate model based on your specific load requirements.
10. Warranty and Support
GEYA products are manufactured to high-quality standards and are certified to required industry standards, including CE. For any technical assistance or support, please refer to the official GEYA website or contact your authorized distributor. Keep your purchase records for any warranty claims.
