40A 2-Pole GFCI Branch Circuit Breaker with Plug-On Installation. Supports both 120/208V and 120/240V applications. 

• Leviton's revolutionary design allows the entire Load Center to be wired at rough-in without any circuit breakers present
• Leviton GFCI, AFCI and dual-function circuit breakers feature patented reset lockout technology, and will not reset if ground or arc fault protection is compromised
• LEDs communicate trip condition and type of fault, and remain illuminated even when tripped

For more information please visit www.leviton.com