Refer to EMI/EMC filter selection
flow chart for options.

EMI/EMC Filter Selection Guide by Type
SeriesFeatures

ES

Small size

1-stage filter

1-stage filter

NASeries
1-stage filter

6A 10A 20A 30A 40A 50A 60A

High-attenuation for low frequency
band(150kHz to 1MHz)

500VAC(528VAC)

4A 6A 10A 20A 30A 50A 60A 80A 100A 150A 200A 250A 300A

Ultra high-attenuation for ultra lowfrequency band
(9kHz to 10MHz)

500VAC(528VAC)

High-attenuation for low frequency
band (150kHz to 1MHz)

500VAC(528VAC)

High-attenuation for low frequencyband(150kHz to 1MHz)

500VAC(528VAC)

40A 50A 60A 80A 100A 125A
150A

Ultra high-attenuation for low
frequency band
(150kHz to 1MHz)

500VAC(528VAC)

80A 100A
150A

EMI/EMC Filter for motor drive
system (AC servo)
Improve saturation resistance

500VAC(528VAC)Ultra high-attenuation from 150kHz
to 1MHz

500VAC(528VAC)

400A
600A

Saturation
resistance type

Ultra high-attenuation from 150kHz
to 1MHz

500VAC(528VAC)

400A 600A
800A 1000A

General purpose
Low profile

Series

2-stage filter

Series

2-stage filter

FSB
Series

2-stage filter

TSC
Series

TSD
Seriesmulti-stage filter

SeriesGeneralpurposefour-wire

1-stage filter

SNASeries

1-stage filter

SNRSeries

1-stage filter

Ripple noise attenuation forswitch mode power supplies

DC EMI/EMC filter

NF-2

YAC

Low profile

multi-stage filter

Saturation
High-attenuation
resistance type

FTB

Book type (Space-saving type)three-wireThree-phase EMI/EMC filter

FTA
1-stage filter

40A 50A
60A

300VDC(400VDC)

500VAC(528VAC)

TBC
Series* NAH only, 6A to 30A

277VAC(305VAC)

High-attenuation for low frequency
band(150kHz to 1MHz)

1-stage filter

1-stage filter

4A 6A 10A 16A 20A 30A

250VAC

SeriesSeries3A 6A 10A 16A

NBC:	High-attenuation for low
frequency band
(150kHz to 1MHz)
NBM:	Low leakage current,
Withstand voltage 4,000VAC
NBH:	Ultra high-attenuation andbroadband(9kHz to 10MHz)

TAC
TAH

250VAC3A 6A 10A 16A 20A 30A

High-attenuation

1-stage filter

Screw type

Series

NAC:	High-attenuation for low
frequency band
(150kHz to 1MHz)
NAM:	Low leakage current
NAH:	Ultra high-attenuation forultra low frequency band
(9kHz to 1MHz)
NAP:	Outside impulse highattenuation

6 10 16 20 25 30 36 40 50 60 64 80 100 125 150 200 250 300 400 6000 800 1000

Ultra highattenuation

JAC

250VAC

4Generalpurpose

2-stage filter

ESC:	Attenuation for low
frequency band
(150kHz to 1MHz)
ESM:	Low leakage current
ESP:	Outside impulse attenuation

3

Compact andlow profile

Series250VAC

Rated Current

1

High-attenuation

NB

General purpose

Single-phase EMI/EMC filter

Series

EAC:	Attenuation for low
frequency band
(150kHz to 1MHz)
EAM:	Low leakage current
EAP:	Outside impulse attenuation

Screwless type

SeriesScrew type

EA

Rated Voltage(voltage range max)

6A 10A 16A 20A 30A

4A 6A 10A 20A 30A 50A 60A 80A 100A 150A

50A 60A 80A 100A 150A 200A 250A
300A

10A 20A 30A 40A 50A 60A 80A 100A 150A

High-attenuation for low frequency
500/289VAC
band(528/305VAC)(150kHz to 1MHz)

For ±V output power supply

DC±50VFor +V output power supply (Peakload)

DC50V

25A 36A 64A 80A

1A 3A 6A

July 06, 2023

10A

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Refer to EMI/EMC filter selection
flow chart for options.

EMI/EMC Filter Selection Guide by Function

TSD

multi-stage filter

2-stage filter

4A to 150A

Ultra lowfrequency band

JAC
Low profile

Compactsize

6A to 60A

TACFTAFTB

High-attenuation(2-stage filter)

400A 600A

Ultra high-attenuation
for low frequency band
(150kHz to 1MHz)FSB
10A to 150A

EMI/EMC filter for moter
drive system (AC servo)
Improve saturation resistance

High-attenuation for low
frequency band
(150kHz to 1MHz)

2-stage filter

1-stage filter

Push down typeterminal block

Saturation
resistance

80A to 150A

High-attenuation for
low frequency band
(150kHz to 1MHz)

Book type(Space-saving type)High-attenuation for
low frequency band
(150kHz to 1MHz)

ShapeEA□ *1
3A to 30ANA□ *2

Smallsize

High-attenuation(2-stage filter)

4A to 30A

Screw type

Screw typeLarge
capacity

InterfaceES□ *1NA□ *2

3A to 16A

40A to 60A

NBC/NBM *3 Broad
6A to 30A

Screw type-band

NBH
6A to 30A

Screw type
Ultra high-attenuation
and broadband(9kHz to 10MHz)

Installationcompatible②

Torque management
unnecessary
ScrewlessScrew typeNEW

Installationcompatible①

Screwless*1 EAC/ESC : Attenuation type from150kHz to 1MHz
EAM/ESM : Low leakage current type
EAP/ESP : Outside impulse attenuation*2 NAC : High-attenuation type from 150kHz to 1MHz
NAM : Low leakage current type
NAH : Ultra high-attenuation from 9kHz to 1MHz
NAP : Outside impulse high-attenuation

Ultra highattenuation type for moter
drive system (Multi-functionalregenerative converter)
Improve saturation resistance

TSC

Large capacity(Multi-stage filter)

50A to 300A

High-attenuation for
low frequency band(150kHz to 1MHz)

Shape40A to 150A

Screw typeTBC

High-attenuation(2-stage filter)

4A to 300A

NEWSaturation
resistance

Ultra high-attenuation
for ultra low frequency band
(9kHz to 10MHz)*3 NBC : High-attenuation typefrom 150kHz to 1MHzNBM : Low leakage current,
Withstand voltage 4,000VAC

Three-phase four-wire EMI/EMC filter

High-attenuation
for low frequency band
(150kHz to 1MHz)

400A to 1000A

Ripple noise attenuation for
DC EMI/EMC filter switch
mode power supplies

Three-phase three-wire EMI/EMC filter Single-phase EMI/EMC filter

TAH

1-stage filter

1-stage filter

YAC
25A to 80A

NEWHigh-attenuation
for low frequency band(150kHz to 1MHz)

1-stage filter

SNA
1A 3A

For ±V output
power supply

6ALargecapacity

SNR
10A

For +V output power
supply (Peak load)

Installationcompatible③■Diagram of Sample application<Robot driver unit>

Servo drivers

Three-phase
Main root / Three-phase
JAC/TAC/TAH/FTA/YACSeries (1-stage filter : General purpose)
TBC/FTB Series (2-stage filter : High-attenuation)
TSC Series (Multi-stage filter : Ultra high-attenuation)☆TSD Series (Multi-stage filter : Saturation resistance)

FTA Series (1-stage filter : Book type, General purpose)FTB Series (2-stage filter : Book type, High-attenuation)<Carrier drive unit>

Inverter drivers

Three-phase

JAC/TAC/TAH Series (1-stage filter : Low profile, General purpose)
TBC Series (2-stage filter : Low profile, High-attenuation)

Conductive noise low
Conductive noise high
★ : When using long shielded cables formotor drive☆ : Using Large Multi-functional regenerative
converter, when its capacity is large

Servo motor★FSB Series (2-stage filter : Book type, High-attenuation)

Single-phase

Inverter motor★FSB Series (2-stage filter : Book type, High-attenuation)<Conpact carrier drive unit>

Inverter drivers

Inverter motor<24V input><Heat cooling unit>

EAC/EAM Series (1-stage filter : Small)
ESC/ESM Series (1-stage filter : Small, Screwless)
NAC/NAM/NAH Series (1-stage filter : General purpose)
NBC/NBM/NBH Series (2-stage filter : High-attenuation)

Switching Power Supply

Single-phase
EAC/EAM Series (1-stage filter : Small)
ESC/ESM Series (1-stage filter : Small, Screwless)
NAC/NAM/NAH Series (1-stage filter : General purpose)
NBC/NBM/NBH Series (2-stage filter : High-attenuation)

DCFan motors
SNR/SNA Series(1-stage filter)

Control circuit on PCB<12V input>

Switching Power Supply
Single-phase

PLC

EAP Series (1-stage filter : Small)
ESP Series (1-stage filter : Small, Screwless)
NAP Series (1-stage filter : General purpose)www.cosel.co.jp/en/<Control unit>

DC/DC converter

July 06, 2023

DC SNR/SNA Series(1-stage filter)<Control unit>

I/O Power supply
In ： Sensor and etc.
Out ： Relay ,solenoid
valve and etc.

NF-3

By using the flow chart below, you caneasily select the model you need.

EMI/EMC Filter Selection flow chart
STARTFor ripple noise attenuation for switch mode power supplies(DC line)

For AC line
Three-phase input type
Single-phase
input typeThree-phase three-wire system ※Can also be used as single-phase input
Low profile

Three-phasefour-wire system

Book type (Space-saving type)High-attenuation (2-stage filter)
General purpose(1-stage filter)

When using long motor cables (Over 10m)
When using normal length
motor cables(10m or less)High-attenuation(2-stage filter or more)
General purpose (1-stage filter)
Compact size
General purpose (1-stage filter)
For ultra low frequency band
For low frequency band

YAC series(1-stage ﬁlter) FTA series(1-stage ﬁlter) FTB series(2-stage ﬁlter) FSB series(2-stage ﬁlter)

TAC series(1-stage ﬁlter) TAH series(1-stage ﬁlter) JAC series(1-stage ﬁlter)(25 to 80A)
Three-phase four-wiresystem
EMI/EMC filter ideal
for High-power officeequipment and Energy
storage systems(40 to 150A)
EMI/EMC filter foranti-conducted emissionof servomotor and device
having inverter
General purpose from150kHz to 1MHz

(10 to 150A)
EMI/EMC filter for motor
drive system (AC servo)
Improve saturation
resistance(4 to 300A)
EMI/EMC filter foranti-conducted emissionof servomotor and device
having inverter
General purpose from 150kHz
to 1MHz■Option-■Option■Option-H, -U, -G,-H, -L, -S-S（80 to 150A）■Option-H, -U, -HU,-S（80 to 150A）■Option■Option■Option-D（4 to 30A）,-D（4 to 30A）,-D（6 to 30A）,-U（50 to 300A）-U（50 to 150A）-H, -U■Use：High-power officeequipment, UPS,
Renewable energy, Lighting,
Medical equipment, etc■Use：Robot with inverteror servomotor, Weldingmachine, Elevator,
Medical equipment, etc■Use：Robot with inverteror servomotor, Weldingmachine, Elevator,
Medical equipment, etc■Use：Robot with inverteror servomotor, Welding
machine, Elevator,
Medical equipment, etc(80 to 150A)
EMI/EMC filter foranti-conducted emissionof servomotor and device
having inverter
High-attenuation from150kHz to 1MHz

■Use：Robot with inverteror servomotor, Welding
machine, Elevator,
Medical equipment, etc(4 to 150A)
EMI/EMC filter for anti-conductedemission of servomotor and device
having inverter
General purpose from 9kHz to1MHz (Ultra low frequencyband)■Use：Robot with inverteror servomotor, Weldingmachine, Elevator,
Medical equipment, etc(6 to 60A)
EMI/EMC filter for anti-conductedemission of servomotor anddevice having inverter
General purpose from150kHz to 1MHz
Compact size

■Use：Robot with inverteror servomotor, Welding
machine, Elevator,
Medical equipment, etc

Three-phase EMI/EMC filter
For conduction noise attenuation
Medical equipment (Low leakage current type)For outside impulse attenuation

General purpose
High-attenuation (2-stage filter)
General purpose (1-stage filter)
Small size

Small size
Screwless type

Generalpurpose

Screwless type

General purpose

Screw type

Screw typeFor ultra low frequency band
For low frequencyband

NAP series(1-stage ﬁlter) EAP series(1-stage ﬁlter) ESP series(1-stage ﬁlter)

NAC series(1-stage ﬁlter) NAH series(1-stage ﬁlter)（★） EAC series(1-stage ﬁlter) ESC series(1-stage ﬁlter)(4 to 60A)
EMI/EMC filter foranti-malfunction by external noise
Outside impulse
high-attenuation※Including 4,000VAC withstandvoltage model (Medical equipment)(3 to 30A)
EMI/EMC filter foranti-malfunction
by external noise
Outside impulse
attenuation
Small size

(3 to 16A)
EMI/EMC filter foranti-malfunction by
external noise
Outside impulse
attenuation
Small size, Screwless terminal type

(4 to 60A)
EMI/EMC filter foranti-conducted emission
General purpose from150kHz to 1MHz
※Including 4,000VAC withstandvoltage model (Medical equipment)(6 to 60A)
EMI/EMC filter foranti-conducted emission
General purpose from 9kHz to1MHz (Ultra low frequency band)※Including 4,000VAC withstandvoltage model (Medical equipment)(3 to 30A)
EMI/EMC filter foranti-conductedemission
General purpose
from 150kHz to 1MHz
Small size

(3 to 16A)
EMI/EMC filter foranti-conducted emission
General purpose from150kHz to 1MHz
Small size, Screwless
terminal type■Option-D (4 to 30A)
-F (40 to 60A)

■Option-D■Option-D■Option-D (4 to 30A)
-F (40 to 60A)

■Option-D (6 to 30A)
-F (40 to 60A)

■Option-D■Option-D■Use：PLC,industrial
equipment withcomputer, etc■Use：PLC,industrial
equipment withcomputer, etc■Use：PLC,industrial
equipment withcomputer, etc■Use：Using multiple■Use：Using multiple switching ■Use：Using multiple■Use：Using multiple
switching power
power supplies, single-phaseswitching powerswitching power
supplies, single-phase
inverter, robot with servo
supplies, single-phase
supplies, single-phase
inverter, etc
motor, medical equipment, etc
inverter, etc
inverter, etc

Single-phase EMI/EMC filter
NF-4

July 06, 2023

www.cosel.co.jp/en/

■Option-D：DIN rail installation type
-G：With switch of line to ground capacitor-L ：Ultra high-attenuation type for EU-T ：Terminal block type

-F ：High input voltage (Rated voltage 500VAC/600VDC)-H：Ultra high-attenuation type
-S ：Hexagon socket head cap screw (Standard type is Hexagon head screw)-U：Improve diﬀerential mode attenuation (Rated voltage 250V)

Rated current 400A or more
Rated current
less than 400A

For +V output power supply (Peak load)

Multi-functional regenerative converter
General purpose

For ±V output
power supply※Can also be used for+V output power supply

Power capacity exceeds 110kWPower capacity110kW or less

TBC series(2-stage ﬁlter) TSC series(multi-stage ﬁlter) TSD series(multi-stage ﬁlter)

SNA series(1-stage ﬁlter) SNR series(1-stage ﬁlter)(50 to 300A)
EMI/EMC filter for anti-conductedemission of servomotor anddevice having inverter
High-attenuation from 150kHz to1MHz(400, 600A)
EMI/EMC filter for anti-conductedemission of servomotor anddevice having inverter
Ultra high-attenuation from150kHz to 1MHz(400 to 1000A)
Ultra high-attenuation formotor drive system(Multi-functional regenerativeconverter)
Improve saturation resistance(1, 3, 6A)
Ripple noise attenuation
for switch mode power
supplies(DC±50V)(10A)
Ripple noise attenuation
for switch mode power
supplies(DC+50V)■Optionー■Option ※1-H

■Option ※1ー■Option-D, -T（6A）, -DT（6A）■Option-D, -T, -DT■Use：Robot with inverteror servomotor, Welding
machine, Elevator,
Medical equipment, etc■Use：Robot with inverteror servomotor, Welding
machine, Elevator,
Medical equipment, etc■Use:Large equipment with
Multi-functional regenerative
converter (Transferred equipment,air conditioning equipment), etc■Use：DC EMI/EMC filter
for ±V output power
supply of analog circuit(Operational amplifier etc.)■Use：DC EMI/EMC filter
for +V output power
supply of analog circuit※1 Please contact us about low leakage current type (Change to low grounding capacitor)

DC EMI/EMC filter

High-attenuation (2-stage filter)
For broadband
For low frequency
band

For broadband

General purpose (1-stage filter)

NBH series（◆）

Small size
General purpose
For ultra lowfrequency band

For low frequency
band

Screwless type
Screw typeNAH series（★）

For Low frequency band

NBC series(2-stage ﬁlter) NBH series(2-stage ﬁltera（◆）

NAM series(1-stage ﬁlter) EAM series(1-stage ﬁlter) ESM series(1-stage ﬁlter) NBM series(2-stage ﬁlter)(6 to 30A)
EMI/EMC filter foranti-conductedemission
High-attenuationfrom 150kHz to1MHz(6 to 30A)
EMI/EMC filter foranti-conducted emission
Ultra high-attenuation andbroadband from 9kHz to 10MHz※Including 4,000VAC withstandvoltage model (Medical equipment)(4 to 60A)
EMI/EMC filter for medicalapplications
Low leakage current type
General purpose from 150kHz to 1MHz
※Including 4,000VAC
withstand voltage model(3 to 30A)
EMI/EMC filter for
medical applications
Low leakage current type
General purpose from150kHz to 1MHz
Small size

(3 to 16A)
EMI/EMC filter for medicalapplications
Low leakage current type
General purpose from150kHz to 1MHz
Small size, Screwless terminal type

(6 to 30A)
EMI/EMC filter for
medical applications
Low leakage current type
General purpose from
150kHz to 1MHz withstand voltage 4,000VAC■Option-D■Option-D■Option-D (4 to 30A)

■Option-D■Option-D■Option-D■Use：Using multiple switching■Use：Using multiple
switching power
power supplies, single-phase
supplies, single-phase
inverter, robot with servo
inverter, etc
motor, medical equipment, etc

www.cosel.co.jp/en/■Use：A case when using multiple ■Use：A case when using multiple ■Use：A case when using multiple ■Use：A case when using multiple
switching power supplies, or forswitching power supplies, or forswitching power supplies, or forswitching power supplies, or for
medical applications like
medical applications like
medical applications like
medical applications likeendoscope, etc
endoscope, etc
endoscope, etc
endoscope, etc

July 06, 2023

NF-5