Relay Box - This 12v relay box includes total 6 available slots for connecting, can make 6 relays connected neatly and tidily in one box, which also makes it easy to replace when one of the relays break down. Fuse Block - This relay block also includes 6 fuse slots for relays, you can add suitable size fuse to corresponding circuit to protect the device from being damaged by excess current, which provides double protection to your circuits. Pre-wired - This relay fuse box is pre-wired design, and the wires are connected in different colors for easily clarify and connect the wires. In addition, the wires at relay high power side are 12 awg wires, which makes the whole box much safer for large current use. Waterproof & Dustproof - This fuse relay block includes upper cover and bottom cover for use, which can block out most dust or splashing water from entering the box, enhances the security level when use. Application - The relay holder with fuse aims to make the wiring clean and tidy, which is suitable for 12V use, capable of automotive, car, truck, marine boat, etc. Product Description Item Specification Maximum Switching Voltage:12 Volts Minimum Switching Voltage: 12 Volts Mounting Type Panel Mount Color: Prewired Product Dimensions: 6.8 x 2.81 x 3.24 inches Coil Voltage: 12 Volts Country of Origin: China Connector Type: Wired Connectors Item Weight: 1.5 pounds Operation Mode: Automatic Exterior :Plastic Wattage: 28.8 watts Contact Type: Normally Open Contact Material: Silver Alloy" Or "Copper Alloy Coil Resistance: 50 Ohms