Lenze ERBD047R01K2 Global Drive Brake Resistor – 47 Ohm 1.2 kW
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Product Information
The Lenze ERBD047R01K2 is an external braking resistor within the Global Drive series, designed to absorb and dissipate excessive kinetic energy during dynamic motor deceleration. Operating with a nominal resistance of 47 Ohms, a continuous rated power output of 1.2 kW, and a thermal capacity of 180 kWs, this component safely converts electrical surges into heat to prevent DC bus overvoltage conditions. Built for heavy-duty industrial automation applications, it supports motor power ratings up to 11 kW across dynamic drive systems.
During rapid stopping or overhauling load events, regenerated energy flows back into the frequency inverter's DC intermediate circuit. The ERBD047R01K2 connects directly to the brake transistor or brake chopper terminals on compatible inverters, including the Lenze 8200 Vector series and Lenze Global Drive 9350 series. Commissioning a replacement resistor involves matching drive braking thresholds and adhering to specified operating cycles, such as a maximum 60-second peak braking duration followed by a 60-second recovery period. ABC Industrial Parts can assist technical teams in verifying parameter settings and drive compatibility when preparing a spare component for integration.
Because the ERBD047R01K2 is a passive resistor assembly, hardware diagnostics rely on physical inspection and direct electrical measurement rather than digital status indicators. Technicians can evaluate the resistor's state by taking resistance measurements across the terminals to confirm a stable 47 Ohm reading and checking for ground faults or thermal degradation. When an existing unit develops open circuits or insulation fatigue from prolonged heavy duty cycles, replacing it with a tested spare ensures continuous drive protection. ABC Industrial Parts provides tested replacement units to help restore operations quickly and reduce system downtime.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | ERBD047R01K2 |
| Model / Type | ERBD047R01K2 |
| Product Family | Global Drive |
| Component Type | Brake Resistor |
| Resistance | 47 Ohm |
| Continuous Rated Power | 1.2 kW |
| Peak Braking Power | 12 kW |
| Thermal Capacity | 180 kWs |
| Maximum Suitable Motor Power | 11 kW |
| Weight | 4.9 kg |
Replacement and Spare Part Considerations
When replacing an existing brake resistor in Lenze 8200 Vector or Global Drive 9350 installations, verifying resistance ratings is essential. The replacement resistor must meet the minimum resistance specification of 47 Ohms to prevent excessive current draw across the inverter's internal brake chopper circuit, which could result in drive fault trips or power stage damage.
Duty cycle management and installation conditions are key factors in maintaining system longevity. The ERBD047R01K2 provides a peak braking capacity of up to 12 kW and a 180 kWs thermal capacity, allowing up to 60 seconds of peak current braking followed by at least 60 seconds of cooling time on 8200 vector drives, or up to 15 seconds of peak braking on 9350 series drives. Ensure adequate mechanical mounting and physical clearance for heat dissipation during repetitive deceleration processes.
Frequently Asked Questions
What is the primary function of the Lenze ERBD047R01K2 brake resistor?
The ERBD047R01K2 dissipates excessive regenerative energy generated during motor deceleration as heat, preventing DC bus overvoltage trips in frequency inverters.
Which Lenze drive series are compatible with the ERBD047R01K2?
The resistor is compatible with Lenze 8200 Vector series inverters, Lenze Global Drive 9350 series, and drive controllers requiring a minimum braking resistance of 47 Ohms.
What motor size is recommended for use with this brake resistor?
The ERBD047R01K2 is designed for drive systems operating motors rated up to 11 kW.
What are the continuous and peak power ratings for this component?
The unit features a continuous rated power of 1.2 kW, a peak braking power of up to 12 kW, and a total thermal energy capacity of 180 kWs.
What recovery time is required during heavy braking operations?
On 8200 vector drives, the resistor supports up to 60 seconds of peak braking current, which must be followed by a recovery period of at least 60 seconds to dissipate thermal energy safely.
How can maintenance technicians test an ERBD047R01K2 unit?
Technicians can measure the resistance across the terminals using a multimeter. A functional unit should measure approximately 47 Ohms with no continuity between the terminals and the ground connection or enclosure.
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