When the Interrupter is in the SAFE position, the booster is mechanically isolated from the explosive train outputs providing a barrier to prevent accidental explosive train initiation. When the interrupter is in the ARM position, the booster is moved in-line with the explosive train input and output ports, providing the correct state to facilitate explosive train initiation. The interrupter booster is initiated by an energetic input stimulus at the interrupter input port from FCDC, DBA, or other types of Initiator, than an electrical input. An electrical stimulus is used to place the interrupter in the ARM or SAFE position. The Interrupter contains both local visual (window) and remote electrical redundant SAFE and ARM position monitor circuits. In addition the Interrupter includes a safing mechanism for manual safing.