1、Safe And Reliable: This dual power manual transfer switch is safe and reliable for manually switching dual power circuits with overload and short circuit protection. 2、Single Side Interlock: This power manual transfer switch utilizes a single side interlock, where the handle of the right side circuit breaker is interlocked with the internal striker mechanism of the left side circuit breaker. Therefore, opening the right side breaker will trip the left side breaker. 3、Silver Alloy Contacts: This PC material DIN rail mount RV transfer switch uses silver alloy contacts for good conductivity and sensitive switching. 4、PC Flame Retardant Material Shell: The shell of this manual transfer switch is made of excellent PC material, which is sturdy, wear resistant, not easy to be damaged and flame retardant. 5、Wide Application: This back up generator transfer switch has a wide range of applications and can be used for RV, home, generator or other dual power systems.