Taylor acoustic/electric and electric guitars with magnetic pickup systems (ES1, T3, T5, T5z) are equipped with a fused string ground, which protects players from being shocked in environments with improper electrical ground. Our universal fused string ground was designed to protect owners of other electric guitar brands. Installing the universal fused string ground in place of the hard-wired string ground in the guitar will keep the player from being part of the circuit path when their hands are on the strings. In the event of improper ground, the string ground’s fuse fries instead of you. (Note: If the fuse blows, the guitar’s electronics will continue to work, but the strings will no longer be grounded, and the guitar could be more susceptible to electrical hum.) If the fuse blows, a replacement should be installed. Professional installation is required. Model# 84923. Additional fuses are available through TaylorWare.