The ABB product with catalog number THED114020 is part of the E150 series, which includes Thermal Magnetic Circuit Breakers, Magnetic Circuit Breakers, and Molded-Case Switches designed to handle up to 150 amps and 600 volts AC. These breakers and switches are built to provide reliable protection and switching for various industrial applications. Some versions feature the WL suffix, indicating they come equipped with copper/aluminum line and load lugs for enhanced connectivity. This specific model is rated for 20 amps, single-pole, with an interrupting capacity of 18 kA at 347 VAC and 125 VDC. Known among pros as a solid piece of gear, it's distributed by BSP Automation, making it a dependable choice when you need rugged circuit protection.