Home > Grid Automation > Protection Relays > Auxiliary Relays > HAA Auxiliary or Annunciator Relay | |||||||||||||||
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Generally two specific forms of the HAA are available, a current operated unit and a voltage operated unit. Example: HAA15A4 is 0.2/2 A DC and the HAA15B5 is a 125 VDC unit. Also, two general case designs are available. The single units such as HAA 15 use a molded plastic case with glass window and all others the standard drawout case. Features and BenefitsCurrent operated units available High speed DC voltage operated units available Drawout case available Molded case with 3 mounting options available When a target is required When alarm or similar functions required Interposing relay in conjunction with transformer SP relay Auxiliary contacts and targeting
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