The Square D QOB320-1021 is a 3-pole 20A circuit breaker designed for 120/240V systems, featuring shunt trip functionality. This breaker is suitable for industrial applications requiring reliable protection and easy installation. It is commonly used in commercial and residential settings where both voltage options are necessary.
The shunt trip mechanism ensures safe operation by disconnecting the circuit when a fault is detected. This breaker is known for its durability and performance, making it a preferred choice for professionals and businesses needing a high-quality circuit protection solution.