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Instruction Book IB019009EN November 2017 www.eaton.com
AK-2-25, AK-2A-25, & AK-3A-25 LV-VSR
Breaker-To-Motor Starter Conversion
Trouble Shooting Chart
Symptom
Inspection Area
Possible Defects
Fails To Close
Blown Fuse(s)
Overload Relay
• Fuses
• Overload Relay
• Unit experienced a overcurrent or short-circuit.
• Unit experienced an overcurrent and that exceeded OL
Relay set point.
• Control Circuit
• Fuses blown (Control Power)
• Secondary Diconnects
• Handle
• VSR will not operate if racking handle is not in the full
down position.
Undesirably Closes
• Control Circuit
• Close Circuit (CS/C Shorted)
Fails To Trip
• Control Circuit
• Fuses blown (Control Power)
• Secondary Disconnects
• T-Relay
Undesirably Trips
• Control Circuit
• Trip Circuit (CS/T Shorted)
• OL Relay not set correctly