Crane Master Controller

Working principle of Master Controller

Master controller are used for remote operation of equipment like EOT cranes & rolling mills drives etc. The enclosure of the controller confirms to I.P 54 degrees of proteciton, making it dust proof.It has upto 6 notches either side with maximum 24 contacts as per desired sequence.Controller are provided with spring & Dead man's handle arrangement. They are compact upt o 4-4 steps.Suitable for Hoist-Grab,Cross Travel,Long Travel.Upto 16 contactsper motion with spring return arrangement is provided.

1) Long Life:- Millions of operations are possible without significant wear to cams and contacts which are rated for 40amps at 500 V.A.C.

2) Simple Maintenance: Maintenance is simplified through the use of individual interchangable contact blocks. Contact tips can be easily inspected without removing the block or disturbing connenctinos. When contacts are worn,only fixed and cmoving contacts can be replaced by removing only one screw.The remaining contact blocks and circuits are undisturbed.

3) Wide electrical clearance:- The design of contact block provides generous electrical creepage and clearance,preventing arcing between contact blocks or to ground. Heavy duty terminal screws are located for convenience and ease of wiring.