Molded to Perfection

So we've all heard of circuit breakers but have you heard of their cousin with a fancier name, the molded case circuit breaker? What's so special about these you ask? Well they're not so much special as they are all-embracing.

They are the most commonly used breaker, they are found everywhere from homes and office buildings to manufacturing plants. The small black breakers in the main electrical panel of homes are molded case circuit breakers. They can range from one amp to 1000's of amps; A few ounces to several hundred pounds. They are recognized by their simple, rectangular, phenolic (phenol and aldehyde resin, for those of you that are clueless such as myself), or plastic case.

These breakers may not be as large as their other family members but they provide overload protection and fault current protection just like air circuit breakers, power breakers and insulated case breakers. They can also provide many other selective or special protective functions.

The WEG ACW series of molded case circuit breakers is available with UL489 certification and

comes in four different compact frames. The Weg ACW Series will assure top performance for power distribution on both thermal and short-circuit protection from 15 to 800Amps.

Its double contacts structure optimizes performance while increasing breaking capacity . The ACW series is available in two levels of short-circuit interrupting capacity – standard industrial & commercial applications (35kA), as well as high-performance applications (65kA). Common plug-in accessories simplify field installation and minimize inventory variations on distributors’ shelves.

They may be mini but they're certainly mighty! Altech® UL489 miniature molded case circuit breakers offer the highest rating in the industry for their type and have been engineered to deliver reliable performance in a wide range of applications. Typical applications include transit, communications, battery systems, UPS systems, cranes, among others.

Altech's TD/TS-Series of MCBs is also UL489 listed and allows for flange mount disconnect facility. This is a cable driven system with interrupt capacities up to 100 KA, on a 240 volt design and 65 KA on the 480 volt designs.Applications include power distribution, power generation and motors.

For further information on molded case circuit breakers please visit us on the web at www.wolfautomation.com or contact our helpful sales team at 800-325-9653.

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