Red push button reset. Arm deploys once circuit is tripped. Water resistant housing. Self-testing and manual override Integrated holes for simple mounting (mounting screws are not included) It comes with two pieces of 4 gauge and 0 gauge ring terminals Perfect replacement for fuse holder. Wire input size: any gauge with use of ring terminal Red push button reset. Arm deploys once circuit is tripped. Water resistant housing. Self-testing and manual override. Integrated holes for simple mounting (mounting screws are not included). It comes with two pieces of 4 gauge and 0 gauge ring terminals. Perfect replacement for fuse holder. Wire input size: any gauge with use of ring terminal.