2F building D Mao yuan industry area, Huan guan south road,
Guan hu street, Long hua district, Shenzhen city
The world's leading manufacturer of power filters.
20A Rated Current 115/250VAC Single Phase EMI Filter with High Insertion Loss for Industrial Automation
Delivers High Insertion Loss EMI Suppression for Stable Industrial Automation Performance
VIIP VIP4-1B-20 Single Phase EMI Power Filter Product Overview
1. Brief Introduction
VIP4-1B-20 is a compact single-phase EMI power filter developed by Shenzhen VIIP Electronics (internal P/N: 10321, Rev 4.0, approved Feb 26, 2025). This panel-mount LC filter effectively suppresses common-mode and differential-mode noise, helping equipment meet global EMC standards. With a compact 29mm × 51.5mm footprint, it fits tight cabinet spaces for automation, testing, laser, and precision industrial equipment.
2. Core Electrical Specifications
- Rated Voltage: 115/250VAC
- Rated Current: 20A RMS (max, applicable under both 115VAC and 250VAC)
- Operating Frequency: 50/60Hz
- Max Leakage Current: 0.3mA @115VAC/60Hz; 0.6mA @250VAC/50Hz
- Insulation Resistance: ≥100MΩ when tested at 500VDC (input/output to ground)
- Operating Temperature Range: -25°C ~ +100°C, stable performance under harsh industrial ambient
- Circuit Structure: RC-LC dual-stage low-pass filter, outstanding insertion loss under standard 50 Ohm test system, suppresses wide-frequency electromagnetic interference
3. Key Advantages
- High current load: 20A large current capacity, suitable for high-power industrial equipment
- Dual-mode noise suppression: Effective filtering for both common-mode and differential-mode interference
- Ultra-wide temperature adaptability: Works reliably from -25°C low temp to 100°C high temp
- Low leakage current design: Avoids ground leakage risks for precision & medical devices
- Miniature compact design: Occupies less cabinet space, flexible panel installation
- Global certification support: Simplifies overseas market access for finished machines
Widely applied in Medical Equipment, Laboratory & Precision Test Instruments, Industrial Automation Machinery.
5.0
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inlet socket
At 115VAC: 20A RMS Max. / At 250VAC: 20A RMS Max
VIIP VIP4-1B-20 20A Single Phase EMI Filter
Product Overview
Industrial-grade single phase EMI filter designed for 115/250VAC applications. This 20A power filter provides effective electromagnetic interference suppression with CE and RoHS compliance for industrial environments.
VIP4-1B-20 is a compact single-phase EMI power filter developed by Shenzhen VIIP Electronics. This panel-mount LC filter effectively suppresses common-mode and differential-mode noise, helping equipment meet global EMC standards. With a compact 29mm × 51.5mm footprint, it fits tight cabinet spaces for automation, testing, laser, and precision industrial equipment.
- Current Rating: 20A
- Voltage: 115/250VAC
- Phase: Single Phase
- Compliance: CQC CB CE TUV UL ROHS REACH
- Application:IT, Telecommunication equipment, Medical equipment
Key Features: Industrial power filtering, electromagnetic compatibility, interference suppression, reliable performance in demanding environments.
Electrical Characteristics
| Parameter | Value | Remarks |
| Voltage Rating | 115 / 250 VAC | AC Voltage |
| Current Rating @115VAC | 20A RMS Max. | At 115V AC input |
| Current Rating @250VAC | 20A RMS Max. | At 250V AC input |
| Operating Frequency | 50 / 60 Hz | Standard Power Frequency |
| Leakage Current @115VAC/60Hz | 0.3 mA Max. | Each Line to Ground |
| Leakage Current @250VAC/50Hz | 0.6 mA Max. | Each Line to Ground |
| Insulation Resistance | ≥100MΩ @500VDC | Input/Output to Ground, 500V DC Test |
| Hi-pot Test Rating | Line-to-Line / Line-to-Ground | Test Duration: 1 Minute |
| Operating Temperature Range | -25°C ~ +100°C | Industrial Grade Wide Temperature |
| Test System Impedance | 50 Ohm System | Insertion Loss Test Standard |
Insertion Loss (Minimum Insertion Loss in dB)
| Frequency (MHz) | Insertion Loss (dB) | Remarks |
| 0.15 | — | Reference Value |
| 1 | 24 | Typical Value |
| *ABOVE TABLES ARE REFERENCE ONLY |
Filter Circuit Structure
| Item | Description |
| Circuit Type | RC + LC Composite Low-Pass Filter |
| Common Mode Suppression | Common Mode Choke L + Y Capacitors (Cy) |
| Differential Mode Suppression | X Capacitors (Cx1, Cx2) + Differential Mode Inductance |
| Discharge Resistor | Built-in Discharge Resistor R |
| Input / Output | LINE (Input) - LOAD (Output) |
| Ground | GND Terminal |
Electrical Schematic
Product Image
Frequently Asked Questions
Q1: What is the rated current and voltage of VIP4-1B-20 EMI filter?
A1: Its rated current is 20A, rated voltage is 115/250VAC, working frequency 50/60Hz for single-phase AC power supply.
Q2: What interference can this EMI filter suppress?
A2: It is two-stage LC filter, good at suppressing both common-mode and differential-mode electromagnetic noise on power lines, improves EMC performance of your equipment.
Q3: What is your MOQ for VIP4-1B-20 filter?
A3: Small trial order is acceptable. For bulk orders we can offer competitive wholesale price, please send us your quantity for quotation.
Q4: What industries and devices is VIP4-1B-20 suitable for?
A4: Single-phase industrial equipment including automation machinery, laser devices, industrial controllers, testing instruments with max load 20A.
Q5: Are all dimensions of VIP4-1B-20 controlled with unified tolerance?
A5: No, tolerance is graded by size range: 0~10mm ±0.5mm, 10~100mm ±0.8mm, 100~250mm ±1.0mm to guarantee assembly compatibility.
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Shenzhen VIIP Electronics Co., Ltd. is a professional EMC service provider. Mainly focusing on the R & D, production and sales of EMC anti-interference components.
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Contact person: Vicky Lee
Tel: +86 19925448748
WhatsApp：86-18003057179