Conclusion the mechanism of puerarin reducing the overload of calcium in HUVECs may be related with blocking both voltage-dependent calcium channels and the release of calcium pool in endoplasm.
CM3 molded case circuit breaker (MCCB) with thermal overload alarm but non-release function was introduced. It integrates part function of thermal overload relay and function of MCCB.
If the charge voltage of current is too high and cause overload, the function of overload protection can cut off output power . It may resume automatic after release from overload.