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The SLA-05VDC-SL-A 4Pin 30A Power Relay is a heavy-duty SPST relay designed for switching high current loads up to 30A using low-voltage microcontroller signals. With a 5V DC coil, this relay can be easily triggered by an Arduino, Raspberry Pi, or other digital control systems, making it ideal for automation and industrial control applications.
It features a robust construction and compact design for PCB mounting. This relay is widely used in projects where reliable switching of high-power devices like motors, lamps, heaters, or inverters is required.
🔧 Key Features
- 30A switching capacity with SPST configuration
- Coil voltage: 5V DC – microcontroller compatible
- High dielectric strength and insulation resistance
- Low power signal controls large loads
- Standard 4-pin PCB mounting footprint
- Mechanical and electrical endurance for long-term use
📐 Technical Specifications
| Product Name | SLA-05VDC-SL-A 4Pin 30A Relay |
| Relay Type | SPST-NO (Single Pole Single Throw – Normally Open) |
| Number of Pins | 4 |
| Coil Voltage | 5V DC |
| Contact Rating | 30A @ 250V AC / 30V DC |
| Contact Resistance | ≤ 50 mΩ (initial) |
| Insulation Resistance | ≥ 100 MΩ (500VDC) |
| Dielectric Strength | 1500V AC (coil to contact) |
| Mounting Type | Through-Hole PCB Mount |
| Operating Temperature | -40°C to +85°C |
| Control Interface | Microcontroller, Relay Driver Module |
| Body Material | Plastic, Copper Contacts |
📌 Applications
- Arduino and Raspberry Pi relay switching
- Home and industrial automation
- Motor and solenoid control systems
- Heavy-duty lighting circuits
- HVAC systems and inverters
💡 Why Choose This Product?
The SLA-05VDC-SL-A 30A Power Relay is a reliable choice for projects that need high current switching with a low-voltage signal. Its 5V coil makes it ideal for microcontroller platforms while supporting up to 30A of load current. Durable, compact, and easy to integrate into PCB-based circuits.
📦 Package Includes
- 1 × SLA-05VDC-SL-A 4Pin 30A Power Relay
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