2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V
2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V
2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V
2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V
2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V
2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V
    2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V
    2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V
2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V
2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V

2090-SR040-18 | Allen-Bradley Resistor Ultra 3000 Passive Shunt Module 800W 460V

Part #: 2090-SR040-18 Manufactured by: Allen-Bradley
Regular price
$2,999.00
Sale price
$2,999.00
Regular price
3 in Stock
Condition: New – Open box
Shipping calculated at checkout.
Product Overview
Allen-Bradley 2090-SR040-18 Shunt Resistor
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Product Description P/N: 2090-SR040-18

Description / Specifications

Description 

The Allen-Bradley 2090-SR040-18 is a passive shunt resistor module designed for Ultra 3000 servo drive systems. Rated at 800 watts and 460 VAC, it dissipates excess regenerative energy to maintain stable bus voltage during demanding motion conditions. This external module supports reliable system protection by managing peak current levels up to 20 amps.

 

 

Technical Specifications

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Components
Part Number 2090-SR040-18
Subcategory Resistor
Series 2090 Cables
Description Ultra 3000 Servo Passive Shunt Resistor Module
Operating Voltage 460 VAC
Current Rating 20 A (Peak)
Power Rating (Continuous) 800 W
Power Rating (Peak) 16 kW
Resistance Range 40–49 Ω
Operating Temperature 0–50 °C
External Power Required No
Mounting Type External mount (cabinet or NEMA enclosure)
Fuse Type Bussman FWP-6.3A14F, 6.3 A
Wiring Requirements 8 AWG, 600 V, 75 °C copper wire
Compatibility Ultra 3000 drives (230/460 VAC), e.g., 2098-xxx-HV100
Shipping Weight 8.6 kg (19 lb)
Function Dissipation of regenerative bus energy

  

 

Information About 2090-SR040-18

The 2090-SR040-18 is part of Allen-Bradley’s 2090 Series of external passive shunt resistor modules, engineered to control regenerative energy generated by servo drive deceleration and load changes. It is built with a robust enclosure suitable for external mounting within a cabinet or NEMA-rated subpanel and activates only when triggered by the drive’s internal transistor. The module provides supplemental dissipation capacity beyond the internal shunt resistor of Ultra 3000 servo drives, helping regulate bus voltage and prevent overvoltage faults. Typical usage includes high-inertia or rapidly decelerating motion systems that require additional energy dissipation for stable and reliable drive operation.

Key Features:

  • Passive shunt design: Activates automatically via drive transistor when excess energy must be dissipated.
  • 800-watt continuous rating: Supports sustained energy handling for demanding servo applications.
  • 460 VAC operating voltage: Compatible with high-voltage Ultra 3000 drive systems.
  • 20-amp peak current capacity: Allows controlled dissipation of regenerative surges.
  • External mount configuration: Installs within subpanels or NEMA enclosures.
  • Resistance range 40–49 ohms: Designed to match Ultra 3000 regenerative requirements.
  • Integrated fuse protection: Includes field-replaceable 6.3 A Bussman FWP-6.3A14F fuse.
  • High-temperature wiring compatibility: Requires 8 AWG, 600V, 75°C cable for proper installation.

The 2090-SR040-18 delivers the reliability and precision required for managing regenerative energy in servo drive systems.

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Frequently Asked Questions about 2090-SR040-18
Question: How does this shunt resistor work in a servo drive system?
Date Update:19/06/2025
Answer:

The 2090-SR040-18 remains passive until triggered by the drive to absorb overvoltage. It regulates the bus voltage by converting electrical energy to heat through its resistive element. The activation mechanism is driven by a transistor inside the Ultra 3000 drive. This makes it an intelligent part of the regenerative braking system in servo-driven automation.

Question: What Ultra 3000 drives is it compatible with?
Date Update:19/06/2025
Answer:

This shunt resistor works with:

  • Ultra 3000 230V AC drives
  • Ultra 3000 460V AC drives
  • Specifically compatible with models like 2098-xxx-HV100

Ensure voltage and power ratings match for proper use.

Question: How is it mounted and wired?
Date Update:19/06/2025
Answer:

To install the unit:

  1. Mount it externally on a subpanel or inside a NEMA 4 enclosure
  2. Use M6 bolts provided by the manufacturer
  3. Wire it using shielded 8 AWG copper wire (600V, 75°C rating)
  4. Connect it directly to the drive’s DC bus terminals

This setup ensures safe and effective energy dissipation.

Question: Is this module externally powered?
Date Update:19/06/2025
Answer:

No, the 2090-SR040-18 does not require external power. It is fully passive and relies on the energy from the drive’s DC bus. Once the DC voltage exceeds safe thresholds, the module is automatically brought into action by the drive circuit. This design makes it energy-efficient and easy to integrate.

Question: Is it still available or supported?
Date Update:19/06/2025
Answer:

As of December 31, 2022, this model has been officially discontinued by Rockwell Automation. There is currently no planned replacement in the Rockwell product line. Users are advised to remove this item from new BOMs and seek third-party or surplus inventory if replacement is needed. Continued use may require external engineering validation.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 2090-SR040-18 is a passive shunt resistor module designed for Ultra 3000 servo drive systems. Rated at 800 watts and 460 VAC, it dissipates excess regenerative energy to maintain stable bus voltage during demanding motion conditions. This external module supports reliable system protection by managing peak current levels up to 20 amps.

 

 

Technical Specifications

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Components
Part Number 2090-SR040-18
Subcategory Resistor
Series 2090 Cables
Description Ultra 3000 Servo Passive Shunt Resistor Module
Operating Voltage 460 VAC
Current Rating 20 A (Peak)
Power Rating (Continuous) 800 W
Power Rating (Peak) 16 kW
Resistance Range 40–49 Ω
Operating Temperature 0–50 °C
External Power Required No
Mounting Type External mount (cabinet or NEMA enclosure)
Fuse Type Bussman FWP-6.3A14F, 6.3 A
Wiring Requirements 8 AWG, 600 V, 75 °C copper wire
Compatibility Ultra 3000 drives (230/460 VAC), e.g., 2098-xxx-HV100
Shipping Weight 8.6 kg (19 lb)
Function Dissipation of regenerative bus energy

  

 

Information About 2090-SR040-18

The 2090-SR040-18 is part of Allen-Bradley’s 2090 Series of external passive shunt resistor modules, engineered to control regenerative energy generated by servo drive deceleration and load changes. It is built with a robust enclosure suitable for external mounting within a cabinet or NEMA-rated subpanel and activates only when triggered by the drive’s internal transistor. The module provides supplemental dissipation capacity beyond the internal shunt resistor of Ultra 3000 servo drives, helping regulate bus voltage and prevent overvoltage faults. Typical usage includes high-inertia or rapidly decelerating motion systems that require additional energy dissipation for stable and reliable drive operation.

Key Features:

  • Passive shunt design: Activates automatically via drive transistor when excess energy must be dissipated.
  • 800-watt continuous rating: Supports sustained energy handling for demanding servo applications.
  • 460 VAC operating voltage: Compatible with high-voltage Ultra 3000 drive systems.
  • 20-amp peak current capacity: Allows controlled dissipation of regenerative surges.
  • External mount configuration: Installs within subpanels or NEMA enclosures.
  • Resistance range 40–49 ohms: Designed to match Ultra 3000 regenerative requirements.
  • Integrated fuse protection: Includes field-replaceable 6.3 A Bussman FWP-6.3A14F fuse.
  • High-temperature wiring compatibility: Requires 8 AWG, 600V, 75°C cable for proper installation.

The 2090-SR040-18 delivers the reliability and precision required for managing regenerative energy in servo drive systems.

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