QF120A | Siemens Single Pole 20 AMP GFCI Circuit Breaker Jandy LRZE Vent Fusible Link pool heater not reaching set

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QF120A | Siemens Single Pole 20 AMP GFCI Circuit Breaker Jandy LRZE Vent Fusible Link pool heater not reaching setThe Siemens QF120A is a 1 pole, 20 amp ground fault circuit interrupter (GFCI) breaker that offers both overcurrent protection and reliable ground fault detection ideal for outdoor, pool spa, or other wet area circuits. It delivers 120 V, 20 A service with a 10 kA interrupt rating and monitors current leakage with 5 mA trip sensitivity, quickly shutting off power upon detecting dangerous ground faults to help reduce shock risk. The breaker features a