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NBRA-669C OPTION/SP KIT

The ABB NBRA-669C OPTION/SP KIT is a spare parts (SP) kit for a specific option module (likely a braking unit or resistor assembly) used within certain ABB drive systems. The "NBRA" prefix typically indicates a Braking Resistor Assembly or Brake Unit Module. The "669C" designates the specific model or version of this assembly. The designation "OPTION/SP KIT" confirms that this is a replacement parts kit for an optional accessory, not the complete original unit.

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Key Specifications Parameter Category Specification / Description Product Type Spare Parts Kit (for an Option Module) ABB Order Code / Kit Number NBRA-669C OPTION/SP KIT Target Component For repairing/refurbishing the NBRA-669C Braking Resistor Assembly (or similar designated brake unit). Kit Purpose Provides the essential internal components to restore a specific braking unit to operational condition. Typical Contents • Braking Resistor Elements/Bands (the primary resistive components). • Thermal Protection Devices (e.g., thermal cutouts, fuses). • Internal Connection Hardware (high-temperature terminals, busbars, screws, washers). • Insulation & Mounting Components (mica sheets, ceramic beads, brackets). • Documentation: Assembly guide, wiring diagram, safety instructions. Key Electrical Parameters (of Target Unit) These apply to the original NBRA-669C unit the kit repairs: • Braking Power / Duty Cycle: Specific to the model (e.g., 50kW peak, 10% duty). • Resistance Value: A specific ohmic value (e.g., 5 Ohms). • Current Rating: Maximum braking current. Application Used in service and repair of ABB variable frequency drive systems (e.g., ACS800, ACS880, or other cabinet drives) where the NBRA-669C braking unit is installed to dissipate regenerative energy.