AC 2020 Series 3-Phase Compressor Protector

The AC 2020 3-Phase Compressor Protector from the ATC Diversified Electronics division of Marsh Bellofram Corporation provides multimode time delays, reset selections and a memory capability which indicates using LED’s, the last fault condition. This offers not only protection for the compressor in adverse electrical conditions but also a method to readily determine the type of fault occurrence.



• Automatic Voltage Ranging
• Universal Control Voltage
• Condition/Fault Indicators
• Automatic/Manual Reset
• Last Fault Memory
• Delay-On-Make
• Delay-On-Break
• Auxiliary Contacts
• Easy Installation