Application
Annunciator relay or flag alarm relay is used for the indication of danger and alarm situations and operational states. It is a semi-automatic relay which can be switched in N/C or N/O mode. The required switch action – N/C or N/O – is set in the factory prior to delivery, according to customer order specifications.
Apart from the coil excitation voltage, no other auxiliary voltage is required for visual signal indication. This is a valuable feature particularly in those applications where the relay has the task of monitoring voltages.

Main characteristics
Flag-Relay drives 4-changeover contacts and a 3-positions front-panel flag indicator.
The front panel is equipped with a push button for alarm acknowledgment, the rear-side has 2-terminal blocks connectors for contacts and bobbin drive. Cage is made of plastic material.
Two versions are available: “energizing” model (RCNE) and “de-energizing” (RCND) model (RCND).
Flag-Relay is recommended for control rooms, switchboards, mimic diagrams. This relay is suited for any environmental condition. A large number of flag relays can be assembled in banks.

RCN Version Annunciator or Flag Alarm Relay – energizing model (RCNE) and de-energizing model (RCND) – semiautomatic and automatic version

 RBN Version Lockout relay – energizing model (RBNE) and de-energizing model (RBND)

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