The Siemens ITE B120 20 Amp 1 Pole 120/240V Circuit Breaker Lot Of 4 is a set of high-quality circuit breakers designed for industrial use. With a brand name like Siemens, these circuit breakers are reliable and durable. The model BL indicates that these circuit breakers are specifically designed for a 20 amp, 1 pole system operating at 120/240V. Perfect for industrial automation and motion control systems, this lot of 4 circuit breakers is essential for ensuring the safety and functionality of your electrical setup.