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AK-R2-120P1K2 | Allen-Bradley PowerFlex 70 DB Resistor, 120 Ohm, 260 Watt
- Regular price
- $479.00
- Sale price
- $479.00
- Regular price
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Product Description P/N: AK-R2-120P1K2
Description
The AK-R2-120P1K2 kit is a PowerFlex 70 external dynamic brake kit. It can be used for Allen-Bradley AC drives. The resistance of the AK-R2-120P1K2 kit is 120 Ohms.
Technical Specifications
| Brand | Allen-Bradley |
| Series | PowerFlex 70 |
| Part Number | AK-R2-120P1K2 |
| Product Type | External Dynamic Brake |
| Resistance | 120 Ohms |
| Continuous Power | 0.26 kilowatts |
| Maximum Energy | 5 kilojoules |
| Minimum Drive to Brake Separation | 2 inches |
| Product Type | Replacement Part |
| Heat Protection | Not Included |
Information About AK-R2-120P1K2
The Allen-Bradley AK-R2-120P1K2 kit is an external dynamic brake kit from the PowerFlex 70 series. It has a resistance rating of 120 Ohms. The AK-R2-120P1K2 dynamic brake kit can be used with a wide range of drives and motors. For 400 to 480 Volts AC rated motors and drives, the AK-R2-120P1K2 dynamic brake kit can be used with 2.2 kilowatts, 4 kilowatts, 5.5 kilowatts and 7.5 kilowatts ratings. The continuous power rating of the AK-R2-120P1K2 dynamic brake kit for such applications is 0.26 kilowatts and the maximum energy rating is 5 kilojoules. The AK-R2-120P1K2 dynamic brake kit can also be used for 600 Volts AC input rated drives. For such drives, the kit can be used with drives rated for 2.2 kilowatts, 4 kilowatts, 5.5 kilowatts and 7.5 kilowatts. The continuous power rating for such applications is 0.26 kilowatts and the maximum energy rating is 52 kilojoules.
During operation, the temperature of the Allen-Bradley PowerFlex 70 AK-R2-120P1K2 dynamic brake kit may go above 200 degrees Celsius. AC drives from Allen-Bradley do not offer the required protection for external brake resistors such as the AK-R2-120P1K2 dynamic brake kit. This is especially true if a brake IGBT fails. Therefore, there is a serious risk of fire for external brake resistors that are operated without the required level of protection. Allen-Bradley recommends protecting the external resistors against excessive temperatures. The system power must be disconnected prior to the installation of the AK-R2-120P1K2 dynamic brake kit. It should also be ensured that the DC voltages on the drives have discharged to 0 Volts. A minimum separation of 2 inches of 50.8 millimeters must be provided between the AC drive and the external brake resistor kit for air-cooling.
Manufacturer information
Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.
Description
The AK-R2-120P1K2 kit is a PowerFlex 70 external dynamic brake kit. It can be used for Allen-Bradley AC drives. The resistance of the AK-R2-120P1K2 kit is 120 Ohms.
Technical Specifications
| Brand | Allen-Bradley |
| Series | PowerFlex 70 |
| Part Number | AK-R2-120P1K2 |
| Product Type | External Dynamic Brake |
| Resistance | 120 Ohms |
| Continuous Power | 0.26 kilowatts |
| Maximum Energy | 5 kilojoules |
| Minimum Drive to Brake Separation | 2 inches |
| Product Type | Replacement Part |
| Heat Protection | Not Included |
Information About AK-R2-120P1K2
The Allen-Bradley AK-R2-120P1K2 kit is an external dynamic brake kit from the PowerFlex 70 series. It has a resistance rating of 120 Ohms. The AK-R2-120P1K2 dynamic brake kit can be used with a wide range of drives and motors. For 400 to 480 Volts AC rated motors and drives, the AK-R2-120P1K2 dynamic brake kit can be used with 2.2 kilowatts, 4 kilowatts, 5.5 kilowatts and 7.5 kilowatts ratings. The continuous power rating of the AK-R2-120P1K2 dynamic brake kit for such applications is 0.26 kilowatts and the maximum energy rating is 5 kilojoules. The AK-R2-120P1K2 dynamic brake kit can also be used for 600 Volts AC input rated drives. For such drives, the kit can be used with drives rated for 2.2 kilowatts, 4 kilowatts, 5.5 kilowatts and 7.5 kilowatts. The continuous power rating for such applications is 0.26 kilowatts and the maximum energy rating is 52 kilojoules.
During operation, the temperature of the Allen-Bradley PowerFlex 70 AK-R2-120P1K2 dynamic brake kit may go above 200 degrees Celsius. AC drives from Allen-Bradley do not offer the required protection for external brake resistors such as the AK-R2-120P1K2 dynamic brake kit. This is especially true if a brake IGBT fails. Therefore, there is a serious risk of fire for external brake resistors that are operated without the required level of protection. Allen-Bradley recommends protecting the external resistors against excessive temperatures. The system power must be disconnected prior to the installation of the AK-R2-120P1K2 dynamic brake kit. It should also be ensured that the DC voltages on the drives have discharged to 0 Volts. A minimum separation of 2 inches of 50.8 millimeters must be provided between the AC drive and the external brake resistor kit for air-cooling.
Manufacturer information
Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.