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In addition to our robust line of high quality vacuum contactors and controllers, Joslyn Clark also offers a wide array of products to help fulfill many of the more specialized needs of your industrial application. That way, we help bring the same level of quality and reliability to all aspects of your mechanical operation that you’ve come to expect from our more high profile product solutions.


The Joslyn Clark PM Family of control relays provides flexibility,versatility and reliability. The exclusive design concept and rugged construction of the PM line offers many advantages for the designer and builder of today's complex control panels. Learn more »

Push Buttons

Push buttons are simple switch mechanisms for controlling some aspect of a machine or a process. Buttons are typically made out of hard material, usually plastic or metal. Learn more »


Vitrohm pressed steel rheostats furnish  a simple, accurate and economical method of field control. They are universally applied for adjusting generator, alternator and exciter field currents to obtain variations in output voltage and for field control of adjustable speed D.C. and synchronous motors. Other typical applications include heater, furnace, battery charging and other controls. Learn more »