This standard pertains to the requirements for current and voltage protective functions of:1) direct-acting overcurrent electromechanical trip devices2) direct-acting overcurrent electronic trip systems3) reverse-current trip systems4) undervoltage trip devicesthat are integral with low-voltage ac (635V and below) and general purpose low-voltage dc (600V and below) power circuit breakers covered by IEEE Std C37.13(TM), IEEE Std C37.14(TM), and IEEE Std C37.16(TM).Additional information, communication and/or additional internal or external protective functions or devices are not covered by this standard. This standard should not be interpreted to restrict theinclusion of such functionality in the device.
Date of Publication :
Sept. 8 2011
Active Unapproved Draft
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