Model No: DEA4
DEA4 Single Phase EMI Filter,Terminal blocks, Rails,3A-20A,50/60Hz
Single-phase, Two-stage
Rated Current:3A-20A
High Performance EMI Filter
Certificate:cUL,CQC,CE,ROHS
Can be customize according to customer requirements.
Support free samples
Rated Current:3A-20A
High Performance EMI Filter
Certificate:cUL,CQC,CE,ROHS
Can be customize according to customer requirements.
Support free samples
Quantity :
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TheDEA4 EMI filter is an efficient two-stage filter that uses connection designs such as terminal blocks, rails, plugs and bolts to ensure a more stable installation. The filter is suitable for scenarios with a rated current of 3-20A and a rated voltage of 110/250VAC. Customized versions can also be provided according to user needs to meet the specific needs of different applications.
As an AC noise filter, the DEA4 series filter is specifically used to selectively eliminate noise signals within a specific frequency range to ensure that electronic equipment obtains a cleaner and more stable power input. The filter is composed of inductors and capacitors, and adopts a two-stage filter design, which can effectively suppress differential and common mode interference, making it particularly outstanding in dealing with complex electromagnetic environments.
As an AC noise filter, the DEA4 series filter is specifically used to selectively eliminate noise signals within a specific frequency range to ensure that electronic equipment obtains a cleaner and more stable power input. The filter is composed of inductors and capacitors, and adopts a two-stage filter design, which can effectively suppress differential and common mode interference, making it particularly outstanding in dealing with complex electromagnetic environments.
Key Features
- Two-stage filtering design effectively suppresses common-mode and differential-mode interference on power lines.
- Rated current ranges from 3 A to 20 A, suitable for various power levels.
- Maximum operating voltage of 275 VAC, compatible with global power systems.
- Multiple connection/mounting options: terminal blocks, DIN rail, plugs/bolts/cables, providing flexible and secure installation.
- Low leakage current (≤ 0.5 mA), suitable for applications with high safety requirements.
- Compact yet robust design (approximately 83 × 51 × 30 mm), saving space while ensuring durability.
- Customization options available (cable length, terminal type, filtering parameters).
- Certified with UL, CE, CQC, RoHS, and other certifications.
Technical Specifications
Specification | Details |
Model: | DEA4 |
Application: | Industrial / Commercial |
Phase: | Single-phase |
Structure: | Two-stage |
Max operating voltage: | 275VAC |
Rated Current: | 3A - 20A |
Leakage Current: | ≤ 0.5mA |
Withstand voltage level: | 2150VAC |
Frequency Range: | 50/60Hz |
Operating Temperature: | -25°C ~ +85°C |
Certifications: | UL, CQC, CE |
Dimensions (mm): | 83 × 51 × 30 (W×H×D) |
Weight(g): | 180 |
Connection Type: | terminal blocks, rails/Bolt/Insert/Power cord |
Product Pictures
Detail Picture



Overall Dimension(±1mm)




Circuit Diagram

Insertion Loss
The DEA4 filter employs a two-stage filtering structure, composed of inductors and capacitors, capable of simultaneously suppressing both common-mode and differential-mode interference. It performs exceptionally well in complex electromagnetic environments. Please refer to the product datasheet for specific insertion loss curves.

Customization Options
Cable length and interface type can be customized according to customer needs. DOREXS can also customize EMI filter parameters and appearance dimensions according to customer equipment requirements. At DOREXS, everything is based on customer requirements and we are committed to creating exclusive EMI solutions for customers.
Approvals and Compliances

Applications
- Electrical and electronic equipment
- Consumer appliances
- Household equipment
- Medical equipment
- Office automation equipment
- Data communication equipment
Selection Guide
When selecting a DEA4 EMI filter, consider the following factors:
- Rated Current — Choose a 3 A–20 A model based on the maximum current of your equipment.
- Connection/Mounting Method — Select terminal block, DIN rail, bolt/plug, or cable connection depending on the installation environment.
- Leakage Current/Safety Requirements — Leakage current ≤ 0.5 mA, suitable for equipment with high safety requirements.
- Voltage/Power System Compatibility — Supports up to 275 VAC, suitable for global power grids.
- Space and Installation Environment — Compact form factor (83 × 51 × 30 mm) is suitable for space-constrained environments such as control cabinets and DIN rails.
- Customization Needs — Cable length, terminal type, and other parameters can be customized according to customer requirements.
Installation Instructions
- Connect the DEA4 filter in series with the AC power line to achieve optimal filtering performance.
- Select the appropriate mounting method (terminal block/DIN rail/bolt/cable) based on the cabinet/control panel design.
- Keep wiring as short as possible to reduce parasitic inductance and improve filtering performance.
- Ensure reliable grounding when necessary.
- Avoid routing sensitive signal lines parallel to the power line filter to reduce coupling interference.
FAQ
1. Who are we?
DOREXS was founded in 2008 and is a manufacturer focusing on EMI solutions and power quality solutions with rich industry experience. Professional R&D technical team and advanced production equipment support us to provide cost-effective products and solutions.
2. How do we ensure product quality?
Our filter products have UL, CE, ISO9001 and ROHS certifications, and each product will be subject to final inspection before leaving the factory.
3. Do we support customization?
DOREXS not only provides standard products, but also supports product appearance customization and product parameter customization. We provide cost-effective EMI solutions and power quality solutions.
4. What services can we provide?
Delivery terms: FOB, CFR, CIF, EXW, FCA
Payment currency: USD, EUR, RMB
Payment method: T/T, L/C, MoneyGram, Western Union, Cash
Payment currency: USD, EUR, RMB
Payment method: T/T, L/C, MoneyGram, Western Union, Cash
5. What products can I buy from you?
EMI/EMC filters, transformers, reactors, insulated wires and power sockets, etc.


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