Home > Grid Automation > Protection Relays > Auxiliary Relays > HMA Hinged Armature Auxiliary Relay | |||||||||||||||
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The Type HMA relay is an instantaneous auxiliary device whose contacts are opened and closed by the movement of a hinged armature. Type HMA Century Series auxiliary relays are designed to provide additional contacts, higher contact carrying and interrupting ratings, timing, interlocking, electrical separation and other auxiliary functions. Front or back connected Molded Textolite case Contact multiplication High speed pickup Self-resetting
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