19 in stock
ABB NBRA-657C Braking Chopper
ABB NBRA-657C Braking Chopper
Brand/Manufacturer: ABB
Order Number: NBRA-657C
Type: Dynamic Braking Choppers
Country of Origin: Sweden
Condition: Original Brand
Lead Time: Available in stock
Payment Term: 100% TT In Advance
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Description
The ABB NBRA-657C, also cataloged as the NBRA-657C Braking Chopper, operates as a dedicated hardware component for dynamic braking energy dissipation within ACS600 drive networks. The module monitors intermediate DC link voltage levels and diverts excess regenerative energy to an external braking resistor when motor deceleration generates overvoltage conditions. It executes precise semiconductor switching routines to protect the drive power section while maintaining continuous torque deceleration control.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | NBRA-657C |
| Brand | ABB |
| Origin | Standard ABB Manufacturing |
| Weight | 2.8 kg |
| Dimensions | 21 cm x 18 cm x 24 cm |
| Operating Temp | 0 to 50 deg C |
| Power Consumption | Controlled dynamic braking power dissipation load |
| Frame Size | ACS600_option |
| Product Type | Dynamic Braking Chopper Module |
| Circuit Function | Intermediate DC bus overvoltage suppression |
Drive Backplane Integration and Deterministic Control Architecture
The ABB NBRA-657C integrates directly into the internal bus structure of ACS600 drive chassis, matching backplane bus communication velocity to ensure zero-latency response during overvoltage transients. Dedicated driver circuits optimize switching frequencies to support rapid I/O density scaling profiles across multi-drive configurations. Full firmware flash compatibility with host drive controllers enables deterministic fault status reporting over Profinet and EtherNet/IP networks, preventing unexpected overvoltage trips during aggressive motor braking profiles.
Frequently Asked Questions
Q: What triggers the activation of the NBRA-657C braking chopper during drive operation?
A: The onboard control threshold detects when the intermediate DC link voltage exceeds standard operating parameters during motor deceleration, instantly switching internal semiconductor gates to dump excess energy into the external braking resistor.
Q: Can the NBRA-657C module be installed or disconnected while the drive DC bus is energized?
A: No. Incoming AC power must be isolated and the DC bus capacitors must be completely discharged and verified with a voltage meter before mounting or servicing the NBRA-657C unit to prevent severe electrical arc flash or equipment damage.
Field Installation Guidelines
- Power Isolation & DC Bus Discharge: Disconnect main power feeds to the drive. Wait the full manufacturer-specified discharge period and verify 0 VDC across the DC link terminals using a multimeter prior to starting installation work.
- Mechanical Installation: Mount the 2.8 kg assembly securely into the ACS600 option slot or designated cabinet mounting surface, ensuring all structural fasteners are torqued to specification to maintain thermal and mechanical stability.
- Resistor & Power Wiring: Connect the external braking resistor using shielded, high-temperature rated cable. Maintain low-impedance grounding paths between the chopper chassis and the panel ground busbar to mitigate electromagnetic interference (EMI).
- Thermal Management: Ensure adequate clearance around the unit's cooling paths to allow unhindered heat dissipation generated during continuous regenerative braking cycles.
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Testimonials
Fast Delivery, Excellent Quality
We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
- Sarah Johnson
We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
- Sarah Johnson
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Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
- David Smith
Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
- David Smith
Professional Service with After-Sales Support"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
Trusted Source for Industrial Automation Spares
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson