Browse FAQs



Can I change the input plug or reduce the cord length on my Rack Power Distribution Unit (Rack PDU) or Rack Automatic Transfer Switch (ATS)?
APC will continue to honor the product warranty on a Rack PDU or Rack ATS if a licensed electrician is used to change the input ...
Can I use anything besides the APC provided mounting screws to rack mount my Rack PDU or ATS?
Issue Can I use third party mounting hardware to mount my Rack PDU or Rack ATS in my Rack ?
Why does my Rack ATS (AP77XX) lose snmpv1 communication with my StruXureWare device or ISX Manager?
Issue My Rack ATS (AP77XX) is losing snmpv1 communication with my StruXureWare device, ISX Manager, or other SNMP NMS periodically.
Does pressing the Reset button on a Metered or Switched Rack PDU or Rack ATS cause the outlets to reboot?
Does pressing the pinhole reset button on a Metered or Switched Rack PDU or Rack ATS cause the outlets to reboot or disrupt power in ...
Rack PDU/ATS NMC firmware compatibility
Product Line Rack ATS (ap77xx, ap44xx)
What does it mean when all of the LEDs on the left of my AP77XX Rack Automatic Transfer Switch (ATS) front panel are illuminated?
All of the LED indicators on the front left of my Rack ATS are illuminated. See below for the specific LEDs.
INFORMATION BULLETIN - Upgrading Rack ATS Firmware (AP77XX) - potential to permanently damage ATS during download
if you have a load attached to the ATS , there is a probability to permanently damage the Rack ATS .
Power Consumption of APC Rack Power Distribution Unit (PDU) / Automatic Transfer Switch (ATS) Products
... losses due to current flow through the Rack PDU or Rack ATS meaning, they are only the fixed losses of the PDU or ATS ...
Changing the Line VRMS (Nominal Line Voltage) on your 208/230vac capable Rack Automatic Transfer Switch (ATS)
ats , voltage, ... transfer switch, rack ats , 208v, fault, configuration change, ATS configuration, Line vrms, line voltage ...
Video: Why am I unable to reset the circuit breaker on my Rack PDU?
Issue My Rack PDU or Rack ATS circuit breaker will not reset or there and/or there is no power output.


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