This circuit breaker is a 3 pole, 20 amp, 120/240 VAC Siemens I-T-E shunt trip pole breaker. It is designed for use in electrical equipment and supplies, specifically in circuit breakers and disconnectors. The breaker has a maximum amperage of 20 A and a nominal voltage rating of 120 V. The item is perfect for those searching for a reliable circuit breaker that can handle a maximum current rating of 20A. The brand Siemens adds to the quality assurance of this product. It is suitable for use in business and industrial settings and falls under the category of circuit breakers.