121AC77B34A Time Overcurrent Relay by General Electric GENERAL ELECTRIC TIME OVER CURRENT RELAY TYPE IAC EXTREMELY INVERSE TIME 4/16 AMPERES 60 CYCLES GEH-2059 PARTS BULLETIN INSTATANEOUS UNIT 20/80 AMPERES CAT# 121AC77B34A Reconditioned Inventory Code: F Make an Offer Send to a Friend WHSE Code: VS4E2 Return To Motor Controls