The Square D Type-QO QOB120 20-Amp 1-POLE 120/240-VOLT Bolt-On Circuit Breaker is a high-quality electrical component designed for commercial and industrial applications. With a maximum amperage of 20A and thermal overload protection, this circuit breaker provides reliable control and protection for electrical circuits. The bolt-on mounting style makes installation quick and easy, while the switch control style ensures convenient operation. This durable and efficient circuit breaker from Square D is a versatile option for various electrical wiring and control equipment panels.