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RLY-100 is identified by ABB as a Auxiliary Relay Module within the Bailey Infi 90 family.
For replacement planning, its function is to provide controlled switching through relay contacts. Coil requirements, contact arrangement, and load limits must match the exact panel or module configuration. Connection and configuration should follow the requirements of the platform.
As part of the Bailey Infi 90 family, this item belongs to an established DCS environment used for modular process control. Application should follow the system drawings and module assignments for the installation. The product should be matched to the documented control-system position.
When this product is used for lifecycle support, technicians should confirm the installed revision, connection arrangement, and system assignment rather than assuming interchangeability with a similarly named module. Existing connection and module records should guide replacement work.
ASEA Brown Boveri - ABB, Bailey Controls, Harmony Block Input Output
AUXILARY RELAY, connects 8 plug-in electromechanical relays for use with DIO blocks
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