moulded case circuit breaker (MCCB), Rated current : 20 A.Number of Poles: 3 poles (three-pole).Interrupting Capacity : 36 kA at 415V AC.Rated Voltage: Up to 690V AC.Frame Type: FD Frame (Frame Size 160A).Release Unit: Fixed thermo-magnetic (ED). FD: Indicates the size of the frame (Frame FD160)., S: Indicates breaking capacity (S = Standard, 36kA at 415V)., 3: Number of poles (3 poles)., 6: Maximum insulation voltage (690V)., TD: Release type (Thermo-Magnetic LTMD, adjustable)., 020: Rated current (In = 20 Amperes)., ED: Connection Version/Standard.