Various high voltage systems may benefit from a suitable relay system. For example, a relay box may be provided with a shock and vibration resistant arrangement including a sealed coil box within the sealed relay box. For example, an apparatus can include a coil box containing coils, inside pole pieces, and permanent magnets, wherein the coils, inside pole pieces, and permanent magnets can be configured to actuate an armature assembly external to the coil box. The apparatus can also include outside pole pieces configured to move a relay armature of the armature assembly responsive to energizing of the coils. Moving the relay armature can include overcoming a latching of at least one of the permanent magnets.