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The AK-R2-120P1K2 dynamic brake resistor kit from Allen Bradley is designed for use with PowerFlex 70 series drives. This unit is engineered for medium-duty applications, providing continuous power capabilities of 260 watts.
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| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Dynamic Brake Resistor Kit |
| Product Line | PowerFlex 70 |
| Part Number | AK-R2-120P1K2 |
| UPC | 820919090080 |
| Weight | 5.25 lbs (2.38 kg) |
| Continuous Power Rating | 260 W |
| Duty Type | Medium Duty |
| Peak Power Handling | High Short-Term |
| Typical Motor Ratings | 2.2–7.5 kW |
| Cooling Method | Natural Air |
| Installation Style | Standalone |
| Resistance Value | 120 Ω |
| Input Voltage Range | 400–690 V AC |
| Braking Method | Dynamic (Resistive) |
| Mounting Type | External |
| Electrical Interface | DC Bus |
| Regenerative Handling | Energy Dissipation |
The dynamic brake resistor kit, part number AK-R2-120P1K2 from Allen Bradley's PowerFlex 70 series, is an essential component for enhancing motor control systems. Rated for continuous power at 260 watts, it balances performance and efficiency for medium-duty requirements. This kit is suitable for various motor power ratings, specifically between 2.2 and 7.5 kW, ensuring compatibility with a range of applications.
Designed with a resistance of 120 ohms, it operates within an input voltage range of 400 to 690 volts AC. The external mounting configuration simplifies installation, allowing it to be integrated into existing systems with ease. The unit ensures effective cooling through natural air circulation, enhancing overall reliability.
This dynamic braking method is classified as resistive, enabling effective energy dissipation during operation. The electrical connection is compatible with a DC bus, facilitating straightforward integration with PowerFlex drives. The AK-R2-120P1K2 kit is engineered for short-term peak power handling, making it robust for handling transient responses experienced during braking cycles.