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Allen Bradley AK-R2-091P500 Dynamic Brake Resistor Kit

Allen Bradley PowerFlex 70 Dynamic Brake Resistor Kit

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ManufacturerAllen Bradley

Part numberAK-R2-091P500

Resistance 91 Ohm

Power Rating 260 W

Mounting External

Duty Medium

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91 Ohm Resistance 260W Power Rating External Mounting For PowerFlex 70 Drives Medium Duty Application

Product description

The Allen Bradley AK-R2-091P500 is an external dynamic brake resistor kit designed for PowerFlex 70 drives. It features a 91-ohm resistance and a 260W power rating, suitable for medium-duty applications. This component is crucial for absorbing regenerative energy during motor deceleration, ensuring stable drive operation and protecting the system from voltage spikes.

Engineered for external mounting, the AK-R2-091P500 allows for efficient heat dissipation, which is vital for the longevity and performance of the braking system. It is compatible with PowerFlex 70 drives operating within the 200-240V AC input range, providing a reliable solution for motor braking applications.

Stanlo Automation, a veteran-owned distributor of industrial surplus parts, offers the Allen Bradley AK-R2-091P500. Source your essential automation components from Stanlo for quality and value.

Technical specifications

Resistance	91 Ohm
Power Rating	260 W
Mounting	External
Duty	Medium
Input Voltage	200-240V AC

Common applications

Motor Braking

Industrial Drives

Variable Frequency Drives

Automation Systems

Compatible systems

Allen-Bradley PowerFlex 70 Drives

Also known as

AKR2091P500 PowerFlex 70 Brake Resistor

Replaces / compatible with

This dynamic brake resistor kit is designed for Allen-Bradley PowerFlex 70 drives. It can be used to replace existing resistor kits or as part of a new dynamic braking system installation.

Technical note

Expert tip

Ensure the 91-ohm resistance value is appropriate for the specific PowerFlex 70 drive model and motor application to achieve optimal braking performance.

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Frequently asked questions

What is the primary function of the Allen Bradley AK-R2-091P500 brake resistor?

The AK-R2-091P500 functions as a dynamic brake resistor, dissipating excess energy generated by a motor when it decelerates. This prevents the DC bus voltage in the drive from rising too high, which could lead to a drive fault or shutdown.