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What do the H HO A and AO on the red button of the LR9D overload relay indicate?
Issue:
Understanding the red button labels on LR9D Overload relay
Product Line:
Contactors and Starters-IEC
Environment:
Tesys D contactors and overload relays
Resolution:
The H indicates that the device is set to hand reset mode, and the A indicates that the device is set to auto reset mode. When you add the "O" the red button can now act as a stop button as well. In HO the device is in hand reset and the red button acts as a stop button, and in AO the device is in auto reset and the red button acts as a stop button.
Understanding the red button labels on LR9D Overload relay
Product Line:
Contactors and Starters-IEC
Environment:
Tesys D contactors and overload relays
Resolution:
The H indicates that the device is set to hand reset mode, and the A indicates that the device is set to auto reset mode. When you add the "O" the red button can now act as a stop button as well. In HO the device is in hand reset and the red button acts as a stop button, and in AO the device is in auto reset and the red button acts as a stop button.
Released for:Schneider Electric Australia
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