{"product_id":"nbra-669c-acs800-frame-r8-brake-chopper-brand-new","title":"NBRA-669C ACS800 Frame R8 Brake Chopper Brand New","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB NBRA-669C (3ABD58984124)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a critical power management component for ACS800 series 690 V three-phase inverters, specifically targeting frame size R8. This module prevents overvoltage trips by dissipating regenerative energy generated during motor deceleration. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal equipment, ensuring the high-speed switching capabilities required for demanding applications like rolling mills, heavy-duty conveyors, and crane hoisting systems.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNBRA-669C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3ABD58984124\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eACS800 series, 690 V, Frame Size R8\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePeak Braking Power\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e375 kW (Duration: 10–30 seconds)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eContinuous Power\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e13.5 kW\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMinimum Resistance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.7 Ω (External Resistor required)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRecommended Resistor\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3 × 9 Ω in parallel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions (W×D×H)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e334 × 240 × 583.5 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.6 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP00 (Requires cabinet enclosure)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRear-mounted via 4 × 7 mm holes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntelligent Dynamic Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe NBRA-669C employs sophisticated monitoring algorithms to detect DC bus voltage rises. It engages external braking resistors only when necessary, which reduces thermal stress on the resistors and increases the overall energy efficiency of the drive system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Capacity Braking:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith a peak output of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e375 kW\u003c\/strong\u003e, this chopper handles massive inertial loads. It effectively manages the rapid deceleration of heavy machinery, preventing DC bus overvoltage and subsequent system shutdowns.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eScalable Power Architecture:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe design supports parallel operation. For applications requiring braking torque beyond the capacity of a single unit, engineers can link multiple NBRA-669C modules to scale the discharge capacity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpace-Optimized Rear Mounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe slim profile and rear-mount configuration allow for seamless integration into ACS800 cabinets. This layout minimizes the footprint inside the electrical room while facilitating efficient heat dissipation through the cabinet’s existing airflow paths.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the consequence of using a resistor lower than 2.7 Ω?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing a resistor below the specified 2.7 Ω minimum can lead to overcurrent within the chopper’s semiconductor switches, potentially causing catastrophic failure of the NBRA-669C. Always verify the parallel resistance value before commissioning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install the NBRA-669C in a stand-alone environment?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This module carries an IP00 rating, meaning it lacks protection against contact or moisture. You must install it within a protected industrial cabinet or an ACS800 drive enclosure to ensure operator safety and equipment longevity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow does parallel operation work with the NBRA-669C?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen parallel-connected, the modules share the braking load. This configuration requires synchronized control signals from the ACS800 inverter to ensure that all choppers engage simultaneously, preventing any single unit from absorbing the entire regenerative surge.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the NBRA-669C compatible with 400V or 500V ACS800 variants?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe NBRA-669C is specifically optimized for 690 V systems. Using this module on lower voltage drives may result in incorrect braking thresholds. Always match the chopper model to the specific voltage rating and frame size of your inverter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":43832891998307,"sku":"NBRA-669C","price":676.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/46_ad99161c-71ab-4644-962e-90194d53241b.jpg?v=1762913985","url":"https:\/\/www.autocontrolglobal.com\/products\/nbra-669c-acs800-frame-r8-brake-chopper-brand-new","provider":"AutoControl Global","version":"1.0","type":"link"}