The 8521-TC-SA is a motor management relay manufactured by GE.
Product Description: The 8521-TC-SA motor management relay has the ability to display primary system values. Current and voltage measurements are made at the secondary level, and the relay uses the CT to VT ratio, system voltage, and the nominal secondary value to convert it to a primary value. Configuring a relay for current measurement is simple in the case of Phase CT, which only requires a CT primary current input. Phase CT inputs can be 1A or 5A, they must be specified when the relay is purchased.
Product Features: Ability to display primary system values; Current and voltage measurements are made at the secondary level; Converts to primary values using CT and VT ratios, system voltages, and nominal secondary values; Configuration of a relay for current measurement is simple in the case of phase CTs, which require only the input of a CT primary current; Phase CT inputs can be 1A or 5A.
Applications: 8521-TC-SA motor management relays are mainly used in industrial automation systems, mechanical equipment, electronic equipment and other fields.
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