Made of two major parts (a) actuator and (b) contact elements these push buttons are available in both 22.5 mm and 30.5 mm diameter cut-out sizes. The actuator is made of chrome plated Zinc alloy / Mazak base, with Derlin knobs in standard colours of Red, Green, Yellow, Blue, Grey. Contact elements of different NO / NC combinations are assembled on these actuators. Based on shape and function of the knob, these push button actuators are categorised into following types : 


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