SSR-10DA/25DA/40DA DC to AC Single Phase Solid State Relay
SSR-10DA/25DA/40DA DC to AC Single Phase Solid State Relay
SSR-10DA / SSR-25DA / SSR-40DA Single Phase Solid State Relay – DC to AC
Upgrade your electrical control systems with the CKCTINNER SSR Solid State Relay series. Available in 10A, 25A, and 40A load ratings, these CE-certified relays deliver fast, reliable DC-to-AC switching with zero mechanical contacts — meaning longer service life, silent operation, and minimal electrical interference. The sealed white shell provides excellent protection against dust and moisture, making these relays suitable for both industrial and general-purpose applications.
Made in Mainland China.
Key Features
- Multiple Load Options: Choose from SSR-10DA (10A), SSR-25DA (25A), or SSR-40DA (40A) to match your exact current requirements.
- Wide Voltage Range: Handles load voltages of 24–380VAC and control voltages of 3–32VDC — compatible with microcontrollers, PLCs, and more.
- Fast Switching: On/off response time ≤10ms ensures precise, responsive control of your AC loads.
- LED Status Indicator: Built-in LED work indicator gives you an at-a-glance confirmation of relay activation.
- Sealed Construction: Fully sealed housing protects internal components for dependable long-term performance.
- High Dielectric Strength: Rated at 2500VAC dielectric strength with insulation resistance of 100MΩ/500VDC for safety and durability.
- Wide Temperature Range: Operates reliably from -25°C to +75°C, suitable for demanding environments.
- CE Certified: Meets CE compliance standards for safe electrical use.
Technical Specifications
| Models | SSR-10DA / SSR-25DA / SSR-40DA |
| Load Current | 10A / 25A / 40A |
| Load Voltage | 24–380VAC |
| Control Voltage | 3–32VDC |
| Control Current | 3–25mA |
| On Voltage | ≤1.5VAC |
| Off Leakage Current | ≤4mA |
| On/Off Time | ≤10ms |
| Dielectric Strength | 2500VAC |
| Insulation Resistance | 100MΩ / 500VDC |
| Ambient Temperature | -25°C to +75°C |
| Work Indicator | LED |
| Weight | 90g |
| Certification | CE |
| Origin | Mainland China |
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Frequently Asked Questions
Q: What is the difference between SSR-10DA, SSR-25DA, and SSR-40DA solid state relays?
A: The key difference is their maximum load current rating. The SSR-10DA supports up to 10A, the SSR-25DA up to 25A, and the SSR-40DA up to 40A. All three share the same control voltage range (3–32VDC), output voltage range (24–380VAC), and sealed white shell design. Choose the model that matches your circuit's current demands.
Q: What control signals are compatible with these solid state relays?
A: These SSR relays accept a wide DC control input of 3–32VDC, making them directly compatible with Arduino, Raspberry Pi, PLCs, microcontrollers, and standard 5V, 12V, or 24V DC logic signals. No additional driver circuit is typically required.
Q: Do I need a heat sink with this solid state relay?
A: For higher-current applications (especially the SSR-25DA and SSR-40DA), it is strongly recommended to mount the relay on an aluminum heat sink to dissipate heat generated during operation and ensure long-term reliability, especially in continuous-duty or high-load environments.
Q: Is this solid state relay suitable for industrial use?
A: Yes. With CE certification, a wide operating temperature range of -25°C to +75°C, a dielectric strength of 2500VAC, and a sealed protective housing, these relays are well-suited for both general-purpose and light industrial control applications.