Lenze 00464342 ERBM470R100W 470 Ohm 100W Braking Resistor
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Product Information
The Lenze 00464342 (model designation ERBM470R100W) is an encapsulated compact braking resistor within the ERBM Series Inverter Accessories line. Functioning as a high-performance drive accessory, this resistor absorbs surplus kinetic energy generated during rapid motor deceleration or dynamic stopping cycles and converts it into thermal power. Built with an encapsulated housing designed for surface mounting near drive enclosures, the unit provides a nominal resistance of 470 Ohms, a continuous thermal power rating of 100 Watts, and an operating limit up to 800 V DC to protect frequency inverters and servo drives from DC link overvoltage conditions.
Electrical integration with host drive systems is handled directly via pre-wired flying leads and an attached cable harness. These leads connect directly to the drive chopper terminals labeled +UG and -RB / ABR on compatible Lenze frequency inverters and servo drives. Commissioning a replacement unit requires confirming physical mounting stability, ensuring correct terminal polarity, and verifying that the minimum brake chopper resistance and continuous dissipation power match system requirements. ABC Industrial Parts can support maintenance teams requiring replacement components to keep automated production lines operating without delay.
Because this component is a passive electrical resistor, operational monitoring relies on the diagnostic features of the connected drive rather than local indicators. Recurring overvoltage faults on the inverter during motor deceleration typically indicate poor thermal dissipation, a damaged resistor element, or wiring issues between the chopper terminals. Basic field checks include inspecting the housing for visible heat stress, verifying terminal tightness, and performing a resistance measurement across the flying leads to verify the 470 Ohm nominal specification. If an internal resistance fault is present, replacing the damaged unit with a tested spare from ABC Industrial Parts provides a reliable solution to resume machine operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00464342 |
| Model / Type | ERBM470R100W |
| Alternative Part Numbers | 464342, E82ZB470R100W |
| Product Family | ERBM Series Inverter Accessories |
| Component Type | Braking Resistor |
| Resistance | 470 Ohm |
| Continuous Power Rating | 100 W |
| Maximum Operating Voltage | 800 V DC |
| Electrical Connection | Flying Leads / Cable Harness |
| Housing Construction | Encapsulated Compact Housing |
Replacement and Spare Part Considerations
When selecting a replacement braking resistor for Lenze drive installations, matching both electrical ratings and physical connectivity is essential. The replacement unit must feature a 470 Ohm nominal resistance to stay within the drive chopper's minimum resistance limits, along with a 100 W continuous thermal dissipation capacity to handle recurring braking cycles. Using an incorrect resistance value risks overloading the drive's internal brake chopper circuit or failing to prevent DC link overvoltage trips at voltages up to 800 V DC.
Pre-attached flying leads simplify direct connection to the +UG and -RB / ABR chopper terminals, eliminating the need for custom terminal blocks. Cross-referencing part numbers such as 464342 or E82ZB470R100W ensures full compatibility with existing equipment across conveyor networks, packaging machinery, material handling lines, and automotive assembly applications.
Frequently Asked Questions
What are the primary electrical ratings for the Lenze 00464342 resistor?
The Lenze 00464342 (ERBM470R100W) provides a nominal resistance of 470 Ohms, a continuous dissipation capacity of 100 Watts, and a maximum operating voltage limit of 800 V DC.
How connects the ERBM470R100W braking resistor to the drive?
The component is fitted with pre-configured flying connection leads designed to wire directly into the drive's brake chopper terminals, designated as +UG and -RB / ABR.
Which drive systems use this braking resistor?
It is designed for Lenze frequency inverters and servo drives that specify a 470 Ohm minimum brake chopper resistance and require auxiliary braking power during motor deceleration.
What alternative part numbers identify this exact part?
This braking resistor is also known under part numbers 464342 and E82ZB470R100W within the ERBM accessory range.
What indicates that a braking resistor may need replacement?
Drive overvoltage faults during rapid deceleration, physical scorching on the encapsulated housing, or an open-circuit reading during a resistance test across the flying leads indicate that the resistor requires replacement.
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