Excellent PLC
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Allen Bradley SK-R9-PCG1-DF7 PowerFlex 750 Size 7 Frame Precharge Kit
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Product Introduction
The Allen-Bradley SK-R9-PCG1-DF7 PowerFlex 750 Size 7 Frame Precharge Kit is a critical internal component designed to ensure safe and controlled startup of AC drive systems. Developed by Rockwell Automation and part of the Allen-Bradley portfolio, this precharge kit is specifically engineered for PowerFlex 750 series drives with Frame Size 7.
Its primary function is to gradually charge the DC bus capacitors during power-up, effectively limiting inrush current and preventing electrical stress on drive components. This controlled precharge process enhances system reliability, protects sensitive electronics, and ensures stable operation in 400/480 V industrial environments.
Product Specifications
| Parameter | Value |
|---|---|
| Model | SK-R9-PCG1-DF7 |
| Product Type | Precharge Kit |
| Series Compatibility | PowerFlex 750 Series |
| Frame Size | Frame 7 |
| Voltage Rating | 400 / 480 V AC |
| Function | DC Bus Precharge / Inrush Current Limiting |
| Application | AC Drive Systems |
| Installation | Internal Drive Component |
| Dimensions | 120 × 30 × 100 mm |
| Weight | 0.5 kg |
Applications
• AC drive startup control — Ensures safe energization of PowerFlex 750 drives by limiting inrush current.
• Industrial motor control systems — Supports stable operation in manufacturing and processing environments.
• Drive system protection — Prevents damage to capacitors and internal circuits during power-up.
• Maintenance and replacement — Used for servicing or upgrading existing drive systems.
• Medium-voltage automation systems — Suitable for 400/480 V industrial applications.
Advantages
• Effective inrush current limitation — Protects drive components during startup.
• Improved system reliability — Ensures stable and controlled energization of the drive.
• Extended equipment lifespan — Reduces electrical stress on internal components.
• Optimized compatibility — Specifically designed for PowerFlex 750 Frame 7 drives.
• Compact and robust design — Suitable for demanding industrial environments.
• Easy integration — Seamlessly fits into existing drive architecture.
FAQ
- What is the main function of this precharge kit?
It limits inrush current and safely charges the DC bus capacitors during drive startup. - Which drive series is it compatible with?
It is designed for PowerFlex 750 series drives. - What frame size does it support?
It is specifically for Frame Size 7 drives. - What voltage range does it operate in?
It supports 400/480 V AC systems. - Why is precharge important in AC drives?
It prevents sudden current surges that could damage capacitors and internal electronics. - Can it be used with other frame sizes?
No, it is designed exclusively for Frame 7 configurations. - Is this a replacement part or for new installations?
It can be used for both maintenance replacement and new installations. - Does it improve system lifespan?
Yes, by reducing electrical stress during startup, it helps extend equipment life. - Is installation complex?
Installation should be performed by qualified personnel familiar with drive systems. - Is it an original Rockwell Automation product?
Yes, it is an official component designed for seamless integration with Allen-Bradley drives.
Related Models
| Model | Description | Type | Application |
|---|---|---|---|
| SK-R9-PCG1-DF6 | Precharge Kit | Drive Component | Frame 6 |
| SK-R9-PCG1-DF8 | Precharge Kit | Drive Component | Frame 8 |
| SK-R1-MCB1-PF753 | Main Control Board | Drive Component | PowerFlex 753 |
| SK-R1-BP1 | Backplane Interface Kit | Drive Accessory | PowerFlex 750 |
| SK-R1-PS1 | Power Supply Board | Drive Component | Internal Power |
| SK-R1-FAN | Cooling Fan Kit | Drive Accessory | Cooling System |
Popular Models
| Model | Product Type | Series | Key Features |
|---|---|---|---|
| 20F11ND077AA0NNNNN | PowerFlex 753 Drive | PowerFlex 750 | Flexible motor control |
| 20G11ND065AA0NNNNN | PowerFlex 755 Drive | PowerFlex 750 | High-performance drive |
| 1756-L85E | ControlLogix Controller | ControlLogix | High-speed processing |
| 1769-L33ER | CompactLogix Controller | CompactLogix | Integrated Ethernet/IP |
| 1734-AENTR | POINT I/O Adapter | POINT I/O | Network communication |
| 25B-D017N104 | PowerFlex 525 Drive | PowerFlex 520 | Compact motor control |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
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