Static ContactEliminate static electricity created from running of the steps(pallets).

Automatic Lubrication SystemA central automatic lubrication system complete with a pump and proportioner can be installed to provided adequate lubrication for all chains automatically.Step chains broken contactsLocated in the lower step-return truss, these contacts monitor the step chains for elongation, breakage or shortening of one or both of the step chains. When actuated, the monitoring contacts will disable and stop the escalator's further movement. Step Sag contactsFixed at the start sections of both inclined upper and lower transition curves, it will be actuated to stop escalator in case step (including step roller) sags more than 3mm or step broken. Phase MonitorThis is a safety feature, which monitors the main power supply's phase.In the event of phase failure or phase reversal.The escalator will be stop.Motor Overload & Overheat (Relay)This relay monitors the motor working condition. In case of motor over loaded or overheated is over 120%, the escalator should be stopped.Comb ContactsIf a foreign object is trapped between the comb and the steps, the resulting pressing action will move comb plates backwards and actuate the safety contacts, thereby switching off the escalator.