Sparkfun

The SparkFun Qwiic Quad Solid State Relay Kit takes one of our favorite [solid state relays](https://www.sparkfun.com/products/13015) and lets you...

Your 5V system can wield great power with this big, beefy relay board. How does 10A on the NC contacts and 20A on the NO contacts at 220VAC sound?...

DC Power Relays interrupt high-capacity DC loads and high-voltage DC circuits in a compact, low-noise design. The switching section and driving se...

The SparkFun Qwiic Dual Solid State Relay is a power delivery board that allows users to switch two AC loads from a low power microcontroller using...

The SparkFun Qwiic Quad Relay is a unique power accessory board that has been designed for switching not one but four high powered devices from you...

Have you ever wanted to control something powerful or have you ever needed to turn on/off a high power device from your Arduino or another low pow...

Do you want to control a standard wall outlet device with your microcontroller, but don't want to mess with the high-voltage wiring? The IoT Power...

A solid state relay (SSR) allows you to control high-curent AC loads from lower voltage DC control circuitry. Solid state relays have several adva...

These are massive single pole - double throw (SPDT) sealed relays. This means that when current is applied to the coil it throws a simple changeove...

These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This rela...