AK-R2-360P500 | Allen-Bradley PowerFlex 70 Dynamic Brake Resistor
AK-R2-360P500 | Allen-Bradley PowerFlex 70 Dynamic Brake Resistor
AK-R2-360P500 | Allen-Bradley PowerFlex 70 Dynamic Brake Resistor
    AK-R2-360P500 | Allen-Bradley PowerFlex 70 Dynamic Brake Resistor
AK-R2-360P500 | Allen-Bradley PowerFlex 70 Dynamic Brake Resistor

AK-R2-360P500 | Allen-Bradley PowerFlex 70 Dynamic Brake Resistor

Part #: AK-R2-360P500 Manufactured by: Allen-Bradley
$409.00
$409.00
4 in Stock
Condition: New – Open box
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Product Overview
The Allen-Bradley AK-R2-360P500 is a dynamic brake resistor designed specifically for integration with Allen-Bradley Power...  Read more
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Product Description P/N: AK-R2-360P500

Description / Specifications

Description 

The Allen-Bradley AK-R2-360P500 is a Dynamic Brake Resistor designed for PowerFlex 70 drives operating on 400/480V AC and 600V AC systems. With a resistance value of 360 Ohms and an 86-watt power rating, it effectively dissipates regenerative energy produced during motor deceleration.

 

 

Technical Specifications

Condition New / Never Used Surplus
Brand Allen-Bradley
Category Drives
Part Number AK-R2-360P500
Subcategory Dynamic Brake PowerFlex 70
Resistance 360 Ω
Power Rating 86 W
Voltage Rating 0/1000 VDC
Drive Compatibility 400/480V AC & 600V AC PowerFlex 70 Drives
Function Dynamic Braking Energy Dissipation
Application Type Motor Deceleration / Regenerative Load Control

 

 

Information About AK-R2-360P500

The Allen-Bradley AK-R2-360P500 Dynamic Brake Resistor is engineered for use with PowerFlex 70 AC drives operating on 400/480V or 600V systems. It provides a resistance value of 360 Ohms, allowing it to safely dissipate excess regenerative energy during motor deceleration, reducing the risk of voltage rise within the DC bus. With an 86-watt power rating, the resistor is capable of continuous thermal handling, ensuring stable braking performance across various industrial load profiles. Its design helps prevent voltage spikes that could otherwise damage sensitive drive electronics, contributing to improved system protection and operational control. Built to Allen-Bradley’s industrial-grade standards, the AK-R2-360P500 offers durable performance in demanding environments while integrating seamlessly into PowerFlex 70 drive systems for reliable dynamic braking functionality.

Key Features

  • Optimized Dynamic Braking Resistance: the 360-ohm resistance value is precisely engineered to match PowerFlex 70 braking circuitry, allowing controlled dissipation of regenerative energy during deceleration cycles.
  • High Thermal Handling Capacity: the 86-watt continuous power rating enables the resistor to absorb braking energy without overheating, ensuring stable operation even in repetitive or heavy-load braking events.
  • Protection from DC Bus Overvoltage: by diverting excess regenerative power away from the drive’s DC link, the resistor prevents voltage spikes that can damage drive electronics or trigger fault shutdowns.
  • Compatibility with 400/480V and 600V Drives: specifically rated for PowerFlex 70 drives in higher-voltage industrial systems, ensuring seamless electrical integration and proper energy dissipation under demanding operating conditions.
  • Robust Industrial Construction: engineered with durable materials capable of withstanding high temperatures, mechanical vibration, and harsh industrial environments, ensuring long-term reliability.
  • Reliable Braking Performance: provides consistent energy dissipation during rapid stopping, controlled deceleration, and high-inertia load applications, improving machine stability and safety.
  • Simplified System Integration: designed as a direct-fit accessory within the PowerFlex 70 ecosystem, reducing installation complexity and maintaining factory-validated performance specifications.

The AK-R2-360P500 delivers the reliability and precision required for dynamic braking, motor deceleration control, and regenerative energy dissipation in PowerFlex 70 drive installations.

Frequently Asked Questions about AK-R2-360P500
Question: What is the AK‑R2‑360P500?
Date Update:19/06/2025
Answer:

The AK‑R2‑360P500 is an external dynamic brake resistor kit manufactured by Allen-Bradley (Rockwell Automation). It is designed for use with AC drives—such as PowerFlex 70 or 700 series—to safely dissipate regenerative energy during deceleration or braking of motors.

Question: What are the physical dimensions and weight of the AK‑R2‑360P500?
Date Update:19/06/2025
Answer:
  • Dimensions: 335 × 60 × 30 mm (13.19″ × 2.36″ × 1.18″)
  • Weight: Approx. 1.25 kg (2.75 lb)
Question: How do I install the brake resistor and where can I find the manual?
Date Update:19/06/2025
Answer:

Installation is detailed in Rockwell’s publication RA‑IN004B‑EN‑P (External Dynamic Brake Kit Installation Instructions), which includes:

  • Mounting location — Must be external to the drive, with at least 50 mm clearance for airflow, using M5 (#10‑24) mounting bolts.
  • Connections: Wire terminals labeled BR+, BR–, and optional thermostat switch for thermal protection. Also wire to the drive's DC+ and DC– braking terminals.
  • Thermostat: Built-in at ~182 °C (opens at 227 °C) to prevent overheating.
  • Safety note: The resistor may exceed 200 °C—install a thermal switch or equivalent and ensure enclosure is rated appropriately
Question: How do I determine if this resistor matches my drive?
Date Update:19/06/2025
Answer:

Refer to the application cross-reference table in the installation manual:

Use the 360 Ω resistor for 0.37 kW (0.5 HP) to 1.5 kW (2 HP) in 400–480 V drives.

Break torque and duty cycle figures (e.g., 305% torque for 0.37 kW at 100% duty) are listed per application type in the table.

Question: Do I need a thermostat or extra protection?
Date Update:19/06/2025
Answer:

Yes. The resistor includes an internal thermostat rated to open at 227 °C (440 °F), closing at 182 °C (360 °F). However, since the unit may exceed 200 °C during use, Rockwell cautions installing a protective circuit or thermostat to guard against fire hazards.

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 AK-R2-360P500 is a Dynamic Brake Resistor designed for PowerFlex 70 drives operating on 400/480V AC and 600V AC systems. With a resistance value of 360 Ohms and an 86-watt power rating, it effectively dissipates regenerative energy produced during motor deceleration.

 

 

Technical Specifications

Condition New / Never Used Surplus
Brand Allen-Bradley
Category Drives
Part Number AK-R2-360P500
Subcategory Dynamic Brake PowerFlex 70
Resistance 360 Ω
Power Rating 86 W
Voltage Rating 0/1000 VDC
Drive Compatibility 400/480V AC & 600V AC PowerFlex 70 Drives
Function Dynamic Braking Energy Dissipation
Application Type Motor Deceleration / Regenerative Load Control

 

 

Information About AK-R2-360P500

The Allen-Bradley AK-R2-360P500 Dynamic Brake Resistor is engineered for use with PowerFlex 70 AC drives operating on 400/480V or 600V systems. It provides a resistance value of 360 Ohms, allowing it to safely dissipate excess regenerative energy during motor deceleration, reducing the risk of voltage rise within the DC bus. With an 86-watt power rating, the resistor is capable of continuous thermal handling, ensuring stable braking performance across various industrial load profiles. Its design helps prevent voltage spikes that could otherwise damage sensitive drive electronics, contributing to improved system protection and operational control. Built to Allen-Bradley’s industrial-grade standards, the AK-R2-360P500 offers durable performance in demanding environments while integrating seamlessly into PowerFlex 70 drive systems for reliable dynamic braking functionality.

Key Features

  • Optimized Dynamic Braking Resistance: the 360-ohm resistance value is precisely engineered to match PowerFlex 70 braking circuitry, allowing controlled dissipation of regenerative energy during deceleration cycles.
  • High Thermal Handling Capacity: the 86-watt continuous power rating enables the resistor to absorb braking energy without overheating, ensuring stable operation even in repetitive or heavy-load braking events.
  • Protection from DC Bus Overvoltage: by diverting excess regenerative power away from the drive’s DC link, the resistor prevents voltage spikes that can damage drive electronics or trigger fault shutdowns.
  • Compatibility with 400/480V and 600V Drives: specifically rated for PowerFlex 70 drives in higher-voltage industrial systems, ensuring seamless electrical integration and proper energy dissipation under demanding operating conditions.
  • Robust Industrial Construction: engineered with durable materials capable of withstanding high temperatures, mechanical vibration, and harsh industrial environments, ensuring long-term reliability.
  • Reliable Braking Performance: provides consistent energy dissipation during rapid stopping, controlled deceleration, and high-inertia load applications, improving machine stability and safety.
  • Simplified System Integration: designed as a direct-fit accessory within the PowerFlex 70 ecosystem, reducing installation complexity and maintaining factory-validated performance specifications.

The AK-R2-360P500 delivers the reliability and precision required for dynamic braking, motor deceleration control, and regenerative energy dissipation in PowerFlex 70 drive installations.

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