Siemens B2020 20A/20A Twin Bolt On Circuit BreakerSiemens B2020 B2020 Product Description Siemens offers a wide array of thermal magnetic circuit breakers that are the key element for overload and short circuit protection of your homes electrical system. To provide additional protection Siemens offers circuit breakers to protect against severe electrical shock or electrocution, mitigate the risk of electrical fires and protect against damaging surges and Voltage spikes. Circuit breakers are intended