Duplex Engineering Works

Other Details

We offer D. C. contactors upto 1500 AMPS which are designed for heavy duty frequent operations demanded by mill and crane duty suitable for voltage upto 600 volts dc. These contactors are designed for mechanical duty class 10 as per is : 2959 :1975. Each contactor is complete and mounted on its own base which can be easily mounted on the panel by not more than four bolts. Removal of contactor leaves internal connections undisturbed. 

Description:
Contactors with rating ranging from 15 amps to 1500 amps are available in four basic types, viz. Single pole, double pole, triple pole, and four pole with main contacts open or closed or a mixture of both, as per clients specifications. Operating coil is 'b' class insulated, d. C. Energised working on 220 volts d. C. Other operating voltages can be offered on request. Contactors can also be offered with a rectifier bridge to take direct supply from an ac source. The contactor will operate satisfactorily on 80% of normal voltage when the coil is hot and will hold in on 20% of normal voltage. The coil will withstand 110 , 4 of the normal voltage continuously. Arc chutes are made from special heat resistant material such as syndyano and are hinged so that they can be lifted for inspection or replacement of contacts. In the lifted position the arc chutes are self supporting. Two or more single pole contactors, mounted on a single base can be mechanically interlocked in a simple but efficient manner to operate as a multi- pole contactor. Shaft mounted multi-pole contactors can also be supplied.