The Square D QOM2200VH Circuit Breaker is a 200A, 2 Pole, 120/240V main breaker designed for overcurrent protection in various applications. It features a bolt-on mounting style for easy installation and operates at an ambient temperature of 40°C (104°F). The black-colored breaker is suitable for wall mounting both indoors and outdoors, with an instantaneous break time and on/off operation method. With a current rating of 151-200 A and compatibility with wire gauge ranging from 1-5 AWG, this Square D breaker offers reliable protection for electrical circuits in any room.