Features: Unique ergonomic and aesthetic knob design, removable for isolation/ safety. AFD is to protect the alternator diodes if the battery is accidentally turned OFF. Battery switch with AFD will cut ou alternator output before cut ou the main circuit it controls. Removable base, detachable switch for unobstructed wiring. It is made of fiber reinforced plastic, which is wear collision, corrosion and high temperature. It is safe and safe to use. Surface or panel mount options provides flexibility when installing. Small size and lightweight, easy to carry and use. Specification: Item Type: Battery Switch Model: S3656 Product color: red black Material: fiberglass reinforced Rated voltage: 48V Continuous current: 275A Product use: large capacity battery or for electrical switch Surge current (5 minutes): 455A Starting current (10 seconds): 1250A Stud Size: M10 Mounting hole spacing: 54.8mm / 2.2inch Weight: Approx. 272g Package list: 1 x Battery Switch 1 x Manual 4 x Install Screws Note: 1. To remove knob, turn the battery switch off and then turn 30 degree counterclockwise and pull out. 2. Turn off all equipment before turning the battery switch OFF. 3. Do not turn battery switch to OFF while engine is running.