... : Overheated protect, lock automatic half current ,error connect protect5.Dimensions:118mm×76mm×33mm6.Weight:<300g.7.Working ... is connected with driver , users are apt to connect the phase by mistake, thus would damage the ... The protecting circuit is within this driver, when users connect by mistake, the driver will not be damaged, ... Stepping motor driver,1.3A-4.5A,high quality and reasonable price