• High-quality material: Interior with pure copper coils for strong electrical conductivity and low loss rate. Flame-retardant nylon housing with heat and corrosion resistance. • High conductivity: Terminal contacts resist welding and arc erosion, offering greater resistance to current impact. • Efficient function: Converts small current output into large current, acting as a current switch. • Pin specifications: 30 high-power feeds, 85 relay coils connected to ground, 86 relay coil feeds (trigger wire), 87 high-power outputs (normally open contact). • Versatile applications: Ideal for split loads or various types of vehicles such as cars, trucks, RVs, boats, and other vehicles requiring high power. • Package content: 1 relay 12V 120A, 2 black and white wires, 2 red copper terminals, and 2 heat shrink sleeves.