Eaton: Molded-Case Circuit Breakers

July 11, 2012
The two- and three-pole molded-case circuit breakers (MCCBs) come in a mechanical drawout design in panelboards and switchboards.

The drawout MCCB switchboard (pictured) and drawout MCCB panelboard may be substituted for nearly any traditional application, but have been specifically designed to meet the needs of mission critical industries that desire maximum uptime to protect critical loads, data integrity, and operational continuity. On both units, drawout feeder MCCBs are available in two- and three-pole offerings from 20 A to 600 A. Breakers on the drawout MCCB units are inserted and removed via a mechanical removal system similar to other drawout designs associated with switchgear; however, these breakers are horizontally mounted in a traditional panelboard group mounted manner, providing greater density and reduced space. The MCCBs are designed with a drawout cassette that has two distinct parts. The cassette "base" is designed so that the lineside connections to the panelboard or switchboard's vertical bus and the loadside connection to the feeder conductors can be permanent. The "drawout" cassette allows the breaker and any breaker accessory connections to be removed.

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Eaton Corporation
www.eaton.com
412.893.3300