Get now the 20-750-EMC1-F4, the dedicated internal EMC filter for Allen-Bradley PowerFlex 753 and 755 Frame 4 drives. This Category C2 filter is a critical addition for any industrial facility requiring high-level electromagnetic interference suppression and compliance with global environmental standards.
What Is the 20-750-EMC1-F4?
The 20-750-EMC1-F4 is an internal RFI/EMC filter kit designed for high-capacity Frame 4 PowerFlex 750-Series drives. As motor sizes and drive capacities increase, so does the potential for conducted emissions. This filter utilizes advanced capacitor and inductor technology to prevent the drive’s switching harmonics from interfering with other devices on the same mains network. The C2 rating ensures the drive meets «First Environment» requirements, making it suitable for facilities that share power lines with sensitive equipment. The modular design of the 20-750-EMC1-F4 allows it to be easily integrated into the drive during initial commissioning or as a field retrofit, providing a clean, internal solution that maintains the drive’s NEMA/IP rating without the need for additional external cabinets.
Key Technical Specifications
- EMC Category: C2 (EN 61800-3)
- Compatibility: PowerFlex 750-Series (Frame 4)
- Power Range: Supports full Frame 4 amperage ratings
- Internal Mounting: Yes
- Voltage: Up to 480V AC
- Ambient Temperature: 0…50°C (32…122°F)
- Standard Compliance: CE, C-Tick, CSA
Industrial Compatibility and Architecture
The 20-750-EMC1-F4 is designed to work in harmony with the PowerFlex 750’s internal power structure. It is compatible with drives featuring dual-port EtherNet/IP (20-750-ENETR) and various I/O option modules. In a typical architecture, this filter is the first line of defense in an EMC-compliant installation. It ensures that the high-frequency «dirty» power is contained within the drive/motor system, preventing it from affecting the main plant transformer and sensitive instrumentation such as flow meters and digital communication buses.
Maintenance Tips
The 20-750-EMC1-F4 is a passive component and requires very little maintenance. However, during annual drive inspections, you should visually check the filter for any signs of thermal discoloration or capacitor leakage. Ensure the mounting screws remain torqued to the drive chassis, as the mechanical ground path is essential for the filter’s noise-shunting performance. If the drive is ever moved to an ungrounded system, the filter’s ground connection must be removed to prevent internal component stress.
Frequently Asked Questions
Q: Does the 20-750-EMC1-F4 reduce motor-side noise?
A: No, this filter is primarily for line-side (mains) noise. To reduce noise on the motor side (to protect motor bearings/insulation), you should use an output reactor or a sine wave filter.
Q: Is it possible to use this on a Frame 5 drive?
A: No, the 20-750-EMC1-F4 is physically and electrically designed only for Frame 4. You must use the F5 version for Frame 5 chassis.
Do you need more references from this brand? Explore our full catalog of Allen-Bradley here: https://atlantechdrives.com/manufacturers/allen-bradley/
