The QB15 is a 1 pole, 1 phase, 120 VAC, 15 amp circuit breaker with a bolt-on connection type, thermal magnetic trip functions, manufactured by ZINSCO. Designed for electrical protection, this circuit breaker offers reliable and efficient performance. Its bolt-on connection type and thermal magnetic trip functions ensure safe and reliable electrical protection. Perfect for residential and commercial use, this circuit breaker provides efficient and controlled electrical power.