EAC-10-472
10A medical-grade EMI filter with high attenuation for AC-DC power supplies and medical equipment
Product Overview
Description
The Cosel EAC-10-472 is a 10A medical-grade EMI filter designed for AC-DC power supplies requiring conducted noise suppression. This filter provides 40dB attenuation across the conducted frequency range (150kHz to 30MHz), helping equipment meet EMC standards including EN 55032 Class B and FCC Part 15. The low leakage current of less than 0.5mA makes it suitable for medical applications. Key features include 250VAC rating, 10A current capacity, two-stage filtering for high attenuation, and -25°C to +85°C operating temperature range. The panel mount design allows easy installation. With an MTBF of 1,000,000 hours and Cosel's 5-year warranty, this EMI filter offers reliable noise suppression.
Product Series
EAC
Primary Application
AC-DC power supplies
Key Features
- 10A current rating for medium-power supplies
- 40dB attenuation for EMC compliance
- Low <0.5mA leakage current for medical use
- 250VAC rating for universal input
- Two-stage filtering design
- Panel mount for easy installation
- UL and CE certified
- 5-year standard warranty
Specifications
| Current Rating | 10A maximum |
|---|---|
| Voltage Rating | 250VAC |
| Frequency Range | 150kHz to 30MHz |
| Attenuation | 40dB typical |
| Leakage Current | <0.5mA at 250VAC |
| Insulation Resistance | >100MΩ at 500VDC |
| Dielectric Strength | 2000VAC for 1 minute |
| Operating Temperature | -25°C to +85°C |
| Dimensions | 60 x 40 x 80 mm (W x H x D) |
| Mounting | Panel mount with screws |
| Terminals | Screw terminals 14-22 AWG |
| Safety Standards | UL60939, EN60939 |
Applications
AC-DC power supplies
Electronic system design
Medical equipment
Medical electronics
Industrial controls
Industrial automation and control
Test and measurement
Data acquisition and conversion
Telecommunications
Communication and interface
LED lighting
Electronic system design
Consumer electronics
Consumer electronics
Renewable energy systems
Renewable energy systems
FAE Expert Insights
"The EAC-10-472 is our standard recommendation for 10A EMI filtering requirements. The 40dB attenuation provides excellent noise suppression for most applications. We particularly appreciate the low leakage current which makes it suitable for medical applications. The two-stage design provides better attenuation than single-stage filters. We've used these successfully with Cosel's PBA300F and PLA600F power supplies. For applications requiring reliable EMC compliance, this filter delivers consistent performance."
Reliable EMI filtering with medical-grade leakage specifications
— BeiLuo FAE Team, BeiLuo
Frequently Asked Questions
How do I select the right EMI filter current rating?
Select EMI filter current rating based on power supply input current: Calculate input current from output power, efficiency, and input voltage. Include margin for inrush and peak currents. Typical rule: Filter rating = 1.5x power supply input current. Example: 300W supply at 90% efficiency, 230VAC input: Input current = 300W / (0.9 x 230V) = 1.45A; Filter rating = 1.45A x 1.5 = 2.2A → Select 3A or 6A filter. For 600W supply: Select 10A filter. Contact our FAE team for filter selection assistance.
Use 1.5x power supply input current. Contact us for selection assistance.
What is the difference between EAC and NAC series?
EAC and NAC series differ in leakage current and application: EAC series (Medical): Low leakage <0.5mA for medical applications; Two-stage filtering for high attenuation; Higher cost due to medical-grade components. NAC series (Industrial): Standard leakage <3.5mA for industrial use; Single or two-stage filtering; Lower cost for industrial applications. Select EAC for medical equipment or when low leakage is required. Select NAC for industrial applications where medical-grade leakage is not required. Both provide excellent EMI attenuation. Contact our FAE team for series selection.
EAC for medical/low leakage, NAC for industrial. Contact us for selection.
How do I install the EAC-10-472?
Install the EAC-10-472 as follows: Mounting: Use panel mount with screws; Mount near power supply input; Ensure good electrical contact with chassis. Wiring: Connect input side to AC mains; Connect output side to power supply input; Use 14 AWG wire minimum for 10A; Keep input and output leads separated. Grounding: Connect filter ground to chassis ground; Use short, wide ground connection; Ensure good conductivity. Installation tips: Mount filter before power supply input; Keep unfiltered wiring away from filtered side; Use twisted pairs for input wiring. Contact our FAE team for installation guidance.
Mount near power supply input. Separate filtered/unfiltered wiring. Contact us for installation.
What attenuation does the EAC-10-472 provide?
The EAC-10-472 provides 40dB typical attenuation: Attenuation varies with frequency - highest in conducted range (150kHz-30MHz). Common mode attenuation: 35-45dB typical; Differential mode attenuation: 30-40dB typical. The two-stage design provides higher attenuation than single-stage filters. Actual attenuation depends on source impedance and load conditions. For best results: Install filter close to power supply; Use proper grounding; Separate input and output wiring. Contact our FAE team for attenuation data at specific frequencies.
40dB typical attenuation. Two-stage design for high performance. Contact us for frequency data.
Can I use one EAC-10-472 for multiple power supplies?
One EAC-10-472 can serve multiple power supplies with considerations: Total current must not exceed 10A rating. Calculate sum of all supply input currents. Include margin for inrush current. Example: Three 100W supplies at 90% efficiency, 230V input: Each supply input = 100W / (0.9 x 230V) = 0.48A; Total = 1.44A; Well within 10A rating. Wiring: Keep wiring from filter to each supply short; Use equal length wires for balanced filtering. Performance: Single filter may not provide optimal filtering for all supplies; Individual filters typically provide better attenuation. Contact our FAE team for multi-supply filter design.
Individual filters recommended for best performance. One filter can serve multiple small supplies. Contact us for design.