Locks E-Unit's in the "startup" positoin to prevent sequencing
This switch complements any Dallee E-Unit (518, 400, 1400) allowing the E-Unit to be locked in it's start position (Forward or Neutral as set by the jumper on the E-Unit).
requires a rectangular hole (23/64" x 5/32") on an external wall / floor of the locomotive with switch Mounting holes on 19mm (0.75") centers (screws not included).
Insert the switch in the rectangular hole, screw switch mounting tabs to body and insure that nothing metallic comes into contact with the exposed backside of the switch lugs or wires since that will damage the E-Unit.
Connect the two pin harness to the "LOCK" socket on the E-Unit.