Stromag India Pvt. Ltd. Manufactures HHEV Lever Cam Limit Switches. Stromag India Pvt. Ltd. Is a DIN ISO 9001 certified company. HHEV Lever Cam Limit Switches are simple mechanical switching devices allowing 1 switching point in each direction of rotation only. The advantage of this arrangement is that at this switching point several switching contacts can be actuated simultaneously and in parallel; e.G. Several independent control current circuits or 1 main current circuit of 2 or 3 phases can be disengaged simultaneously. The main applications of HHEV Lever Cam Limit Switches are in the main current disengagement of escalators, small lifting gears, conveying systems, etc.