SSR-41FDD/41FDA Solid State Relay 3-32VDC 6A DIN Rail Module
SSR-41FDD/41FDA Solid State Relay 3-32VDC 6A DIN Rail Module
SSR-41FDD / 41FDA Slim Solid State Relay Module — DC to DC, 6A, DIN Rail Mount
The SSR-41FDD and SSR-41FDA are compact, slim-profile solid state relay (SSR) modules designed for reliable, non-contact DC switching in industrial, automation, and electronics projects. With a wide control voltage range of 3–32VDC and a 6A load capacity, these modules are built for versatile, space-saving installation on standard DIN rails.
Key Features
- Wide Voltage Range: Control voltage 3–32VDC; load voltage 5–60VDC (DC version) or 24–250VAC (AC version) for broad application compatibility.
- High Load Capacity: 6A load handling ensures stable, dependable control of high-power circuits.
- Non-Contact Switching: Solid state technology eliminates mechanical wear for extended service life and silent operation.
- Slim, Compact Design: Space-efficient form factor with integrated DIN rail mounting for clean, professional panel installations.
- Versatile Signal Relay: DC-to-DC and DC-to-AC variants available, suitable for PLCs, microcontrollers, and automation control systems.
- Durable Construction: Engineered for high-cycle, continuous-duty applications where mechanical relays would degrade quickly.
Specifications
| Model | SSR-41FDD (DC-DC) / SSR-41FDA (DC-AC) |
| Control Voltage | 3–32VDC |
| Load Voltage (DC) | 5–60VDC |
| Load Voltage (AC) | 24–250VAC |
| Load Current | 6A |
| Switching Type | Non-contact (Solid State) |
| Mounting | DIN Rail |
| Package | 1 × Relay Module |
| Country of Origin | Made in China |
What's in the Box
- 1 × SSR-41FDD or SSR-41FDA Solid State Relay Module
Perfect For
- Industrial automation control panels
- PLC and microcontroller (Arduino, Raspberry Pi) projects
- HVAC and temperature control systems
- Motor and lighting control circuits
- DIN rail enclosure builds
Note: Slight dimensional differences may occur due to manual measurement. Colors may vary slightly from images depending on your display settings.
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Frequently Asked Questions
Q: What is the difference between the SSR-41FDD and SSR-41FDA solid state relay modules?
A: The SSR-41FDD is a DC-to-DC relay module, meaning both the control signal and the load output are DC (control: 3–32VDC, load: 5–60VDC). The SSR-41FDA is a DC-to-AC variant where the control input is DC (3–32VDC) but the output switches an AC load (24–250VAC). Choose the model that matches your load type.
Q: Can this solid state relay module be used with an Arduino or Raspberry Pi?
A: Yes. The 3–32VDC control voltage range makes it fully compatible with 3.3V and 5V microcontrollers such as Arduino and Raspberry Pi. Simply connect the control input to a GPIO pin and use the relay to switch higher-voltage DC or AC loads safely.
Q: How do I mount the SSR-41FDD/41FDA relay on a DIN rail?
A: The module features an integrated DIN rail clip that snaps directly onto a standard 35mm DIN rail (EN 50022). No additional hardware is required. This makes it ideal for installation inside industrial control panels and enclosures.
Q: Is this relay truly non-contact and what are the advantages?
A: Yes — solid state relays use semiconductor switching (typically a MOSFET or TRIAC) instead of a physical moving contact. This means no mechanical wear, silent operation, faster switching speeds, and a significantly longer operational lifespan compared to traditional electromechanical relays.