BQD390 Panelboard Circuit Breakers SIEMENS Review

Thanks to my knowledge gained in practice I can confidently say that SIEMENS circuit breakers are subpar. They constantly trip, leaving me frustrated and necessary parts for repairs are difficult to obtain....

These circuit breakers are essential for any industrial or scientific workplace... They provide consistent and reliable protection against overload and short circuits, ensuring safe and efficient operations. The compact design allows for easy installation and maintenance. The only downside is the initial cost but the long-term benefits make it a worthwhile investment. Overall, a top-notch product for industrial and scientific use..

Here is some information and specs from his own specs in plain English that might be helpful. BQD390 means it is a BQD type industrial circuit breaker for Siemens switchboards (large switchboard). They are commonly used in large commercial or industrial installations to drive large motors such as large AC motors from 30 to 50 hp. and equipment, depending on which circuit-breaker of the series you choose. 40, 50, 70, 90, 100 amps, etc. This is rarely used in consumer equipment as it is designed…