Song Chuan has manufactured specialized electromechanical power relays since 1974. After more than 50 years of innovation, production, and expansion, Song Chuan has established itself as a top electrical relay provider for customers around the world. Song Chuan's relays are high-quality, affordable and perfect for automotive electrical systems. Song Chuan relays are designed to endure extreme temperatures. Waytek supplies many different Song Chuan automotive mini, micro, and maxi relays of varying contact current ratings and contact forms.