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VIP4-1B-20 20A Chassis Mount EMI Filter, 115/250VAC, Low Leakage, Single Phase EMC Anti-interference for Medical Lab Instruments 1

VIP4-1B-20 20A Chassis Mount EMI Filter, 115/250VAC, Low Leakage, Single Phase EMC Anti-interference for Medical Lab Instruments 2

VIP4-1B-20 20A Chassis Mount EMI Filter, 115/250VAC, Low Leakage, Single Phase EMC Anti-interference for Medical Lab Instruments 3

VIP4-1B-20 20A Chassis Mount EMI Filter, 115/250VAC, Low Leakage, Single Phase EMC Anti-interference for Medical Lab Instruments 4

VIP4-1B-20 20A Chassis Mount EMI Filter, 115/250VAC, Low Leakage, Single Phase EMC Anti-interference for Medical Lab Instruments 5

VIP4-1B-20 20A Chassis Mount EMI Filter, 115/250VAC, Low Leakage, Single Phase EMC Anti-interference for Medical Lab Instruments 6

VIP4-1B-20 20A Chassis Mount EMI Filter, 115/250VAC, Low Leakage, Single Phase EMC Anti-interference for Medical Lab Instruments 7

VIP4-1B-20 20A Chassis Mount EMI Filter, 115/250VAC, Low Leakage, Single Phase EMC Anti-interference for Medical Lab Instruments 8

VIP4-1B-20 20A Chassis Mount EMI Filter, 115/250VAC, Low Leakage, Single Phase EMC Anti-interference for Medical Lab Instruments

Safe EMC Purification for Precision Medical Diagnostic & Laboratory Testing Equipment

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

4.Application Scope

Widely applied in instruments and meters、 Household small tools, Test and measurement equipment,Flectronic equipment requiring connection of standard plug.

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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

VIP4-1B-20 20A Chassis Mount EMI Filter, 115/250VAC, Low Leakage, Single Phase EMC Anti-interference for Medical Lab Instruments 9

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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