About this item

The SLA‑05VDC‑SL‑A 4‑Pin 30 A Power Relay is a robust and versatile electromechanical switch ideal for high-current applications, operating from a modest 5 V trigger—perfectly compatible with microcontrollers like Arduino or ESP8266. Boasting a high load capacity, it can switch up to 30 A at 250 VAC or 30 A at 30 VDC, making it well-suited for controlling appliances, heaters, motors, HVAC units, and other heavy-duty equipment. Encased in a compact footprint measuring approximately 31 × 27 × 20 mm and weighing around 24 g, the relay provides solid, PCB-friendly mounting in a standard 4‑pin configuration. The coil draws around 0.185 A when energized, with switching (operate and release) response times typically under 10 ms. Designed for reliability, it operates across an industrial-friendly temperature range from –25 °C to +70 °C and includes a 15-day warranty against manufacturing defects when kept sealed. Whether you're designing power control systems, home automation modules, or rugged embedded controllers, the SLA‑05VDC‑SL‑A offers powerful switching performance in a compact, dependable package.