Product details:

Cutler-Hammer Quicklag BAB Miniature Circuit Breaker, Standard, Commercial, 120/240 VAC, 40 A, 10 kA Interrupt, Non-Interchangeable, Fixed Thermal Magnetic Trip, 2 Pole, Bolt-On Tab, 14 - 4 AWG Wire, Extended Tang Line Terminal, Panel Board Mount, 40 deg C, 2.31 Inch L x 2 Inch W x 2.37 Inch D