General :
Master Controllers are of cam type where in contracts are actuated by individual cams mounted on operated shaft. These controllers are used for remote operation of contactors equipment controlling heavy duty E. O. T. cranes & Rolling mill drives

Construction :
Master Controller is housed in enclosure and provided with an easily removable cover with ample area for maintenance. The cam shaft is mounted on bearing bushes on walls of housing. The cams are made of delrin material and fixed on square spindle switch is moved by handle. The cams are cut correspond to the switching program.

Technical data :
Body Material - Sheet Steel / Aluminium Die cast
Protection Degree - IP-44 / IP-54
Confirming to IS-13947(Part-1)1993
Mounting position - Horizontal / Vertical
Contact Material - Silver Cadmium
Rated Voltage Insulation - 500 V. A. C.
Thermal Test Current - 10 Amps.
Cable entries - 2X20 2x26 standard Conduit
Frequency of operation - 1000 switching per hour
Contacts - Single / double break
No. of contacts - 24 maximum
No. of steps - 7 - 0 - 7 maximum
Optional - Spring return / deadman's handle arrangement

DUAL MASTER CONTROLLER

Twin Master Controller with one universal handle allows a Crane operator to control both bridge & trolley motions with one handle. Simultaneous operation of bridge & trolley motions provide for greater spotting accuracy and faster movement of loads. The handle of joystick can be moved into any quadrant and any position. Universal controllers are also used for HOIST / GRAB motion.

Controller :
Heavy Duty | IP54 enclosure | Double break contact 10 A @ 415 V A. C. | Steps / Notches - max. 4 in each direction | Max. number of contacts per motion - 16 | Lever gate option | Spring return type.