Eaton NSB QBHW3020HH08 Miniature Circuit Breaker is a 3-pole MCB rated for 20 A at 240 V with 50/60 Hz operation. It provides overcurrent protection for three‑phase circuits in electrical distribution panels by interrupting fault current. The QBHW3020HH08 designation identifies its model within Eaton's NSB family of miniature circuit breakers.
