Siemens HBQ1B020 is a 1-pole, 20 A, 240 V AC molded‑case circuit breaker from the HBQ family, engineered to protect single‑phase branch circuits in commercial and light‑industrial distribution panels. It uses a thermal‑magnetic trip mechanism and carries a 22 kA interrupting rating at the rated voltage, with load‑side lug terminals included for straightforward wiring. Compatible with Siemens BQ/HBQ line panels and other Siemens distribution equipment, this compact breaker delivers reliable overcurrent protection for 60 Hz systems.
