APPLYING MOTOR CIRCUITS TO VACUUM CONTACTORS

Motor starters often experience overheating, noisy operation and frequent failure. Vacuum contactors are essential to motor starting applications. Learn more here.
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REVERSING VACUUM CONTACTORS IN HEAVY DUTY APPLICATIONS

Many applications require reversing vacuum contactors to allow even wear of components within machinery. Learn how to specify a reversing vacuum contactor here.
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VACUUM CONTACTOR MOUNTING BEST PRACTICES

Vacuum contactors are mounted in confined cabinets where space is limited and clearance requirements are in place for safety. Learn the best practices here.
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ON DEMAND WEBINAR: INSTALLATION BEST PRACTICES FOR VACUUM CONTACTORS

View our on demand webinar with our experts as they discuss best practices for vacuum contactor installation and special application considerations.
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GUIDE TO VACUUM CONTACTOR LATCHING MECHANISMS

Vacuum contactors can be specified as mechanically latching, electrically held or mechanically interlocked. Learn how to decide between the latching mechanisms here.
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HOW TO MAINTAIN VACUUM CONTACTORS

Learn how to check a vacuum contactor’s dielectric strength and ability to interrupt high currents with a Hi-Pot test.
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ON DEMAND WEBINAR: PROLONGING MOTOR LIFE WITH VACUUM CONTACTORS

Listen to our on demand webinar as our experts discuss how to prolong motor life with the low switching transients of a vacuum contactor.
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WHAT ARE SWITCHING TRANSIENTS AND HOW TO MINIMIZE THEM

Switching transients occur in power systems each time an abrupt circuit change occurs. Learn how vacuum contactors provide low switching transients and protect critical equipment here.
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WHEN TO CHOOSE A VACUUM CONTACTOR OVER A VACUUM BREAKER

Differences in the deisgn of Vacuum Circuit Breakers and Vacuum Contactors make each device more appropriate in some applications.
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HOW TO SPECIFY VACUUM CONTACTORS FOR HIGH ALTITUDE ENVIRONMENTS

As altitude increases, the density of the air decreases, which pose a unique set of obstacles for vacuum contactors. Learn how to specify in high altitude environments here.
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COST EFFECTIVE MODIFICATIONS FOR EXISTING CIRCUIT BREAKERS

Control of electric power using vacuum switching is well proven in both switchgear and motor control applications. This technology is readily available in vacuum circuit breakers and vacuum contactors covering all applications in low and medium voltage levels. Joslyn Clark Controls manufactures vacuum contactors to cover all standard distribution voltage levels.
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CASE STUDY: BUILT FOR MINING APPLICATIONS

History shows that arcing mediums have changed from oil to air and now to vacuum, a proven technology for 35 years. Vacuum contactors are now used in many applications around the world, and are especially significant in mining applications. Here, we will point out challenges that are faced in the mining industry, the advantages of the vacuum contactor and Joslyn Clark successes in mining applications.
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