Noark Ex9M Series, Manual

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18

Ex9ML residual current protection circuit breaker/residual current protection module

Ex9MSD switch disconnector

Ex9ML

Product 

code

Ex9ML: 

residual current 

protection 

circuit breaker/

residual current 

protection 

module

1: 160A

2: 250A

3: 400/630A

Frame size 

code

2

3P

Default

ALT

250

RCD2

Rated 

current (A)

Code of residual 

current type

Code of special 

demand

Pole number 

code 

Code of residual 

operating current

Default: AC 

type

A: A type

Default: no 

special demand

ALT: release 

upon leakage 

alarm 

ALNT: does not 

release upon 

leakage alarm

3P

4P4T: 

protected 

N pole, 

operable

Model Selection example:

Ex9ML2N SU20L 250 3P A RCD2 ALT refers to an 

Ex9ML2 series 3 pole moulded case circuit breaker with frame size of 250A, breaking capacity 

of 50kA and rated current of 250A, providing basic type electronic power distribution protection. It is equipped with type A residual current protection 
module, with leakage alarm release function and residual current adjustment range of 0.05A-0.2A-0.5A-2A.

Model Selection example:

Ex9M6SD AC 1250 3P MOD AC230V refers to an 

Ex9M6SD series AC 3 pole motor-driven operating switch disconnector with frame size of 1600A, 

operating current of 1250A, and control voltage of AC 230V.

Accessories of Ex9M series products

Short name of accessories

Frame size code

Explanations

Explanations

Pole number code

Special demand code

SHT

Please see table 

below

Please see table 

below

Default: normal

M: low power consumption

Not needed if no 

operating voltage

3P: three poles

4P: four poles

No code if no special 

demand;

Develop code according 

to special demand.

Reference table for accessory type 

1)

Name

Abbreviation

Ex9M1

Ex9M2

Ex9M3

Ex9M4

Ex9M5

Ex9M6

Auxiliary contact

AX

AX21

Alarm contact

AL

AL21

Shunt release

SHT

2)

SHT 21/SHT 21M

SHT 22/SHT 22M

SHT 24/SHT 24M

SHT 26

Undervoltage release

UVT

UVT 21

UVT 22

UVT 24

UVT 26

Closing electromagnet

XF

3)

—

—

—

—

—

XF 26

Direct rotary handle

RHD

RHD 21

RHD 22

RHD 23

RHD 24

—

Extended rotary handle

ERH

ERH 21

ERH 22

ERH 23

ERH 24

ERH 26

Long handle

LHD

—

—

—

—

—

LHD26

Motor-driven operating mechanism MOD

MOD 21

MOD 22

MOD 23

MOD 24

MOD 26

Handle locking device

KLK

KLK 21

KLK 22

KLK 23

—

—

Mechanical interlock

MIT

MIT 21

MIT 22

MIT 23

MIT 24

—

Short terminal cover

TCV

TCV 21

TCV 22

TCV 23

TCV 24

—

Long terminal cover

TCE

TCE 21

TCE 22

TCE 23

TCE 24

—

Front connection plate

JP

JP 21

           JP 22

JP 23

—

JP 26

Rear connection plate

RCP

RCP 21

RCP 22

RCP 23

RCP 24

—

Draw-out base

DOB

—

—

DOB 23

DOB 24

—

Plug-in base

PIA

PIA 21

PIA 22

PIA 23

—

—

Cable connector

MC

MC 21

MC 22

MC 23

MC 24

MC 26 W3

MC 26 W4

Rail adapter

DRA

DRA 21

DRA 22

—

—

—

Communication module

COM

COM 22 (for Ex9M SU electronic series)

Battery box

BAB

—

BAB 22

Interphase barrier

PHS

PHS 21

PHS 22

PHS 23

PHS 24

PHS 26

Model Selection example:

SHT 22 AC110V

: Order a shunt release for product with frame size of Ex9M2 and Ex9M3, with rated control voltage of AC 110V;

RHD 23

: Order a direct rotary handle for Ex9M3 product.

Similar for others.

— None

SHT/UVT rated control voltage

MOD rated control voltage

AC48V                 DC24V

AC110V               DC48V

AC220V-240V     DC110-120V

AC380V-415V     DC220V

AC110V                DC24V

AC220-240V        DC110-120V

AC380V-415V      DC220V

Model Selection and Ordering Information

Model Selection and Ordering Information

Note: 

1)  

1P product only provides handle locking device, 2P product provides internal accessories (including shunt release, undervoltage release, 
auxiliary contact) and external accessories (including handle locking device, front/rear connection plate), other accessories are not included.

2) 

There are two types of shunt release available: normal type and low power consumption type (plus M behind frame size code);

3) 

Only available for Ex9M6 MOD motor-driven version circuit breaker.

N

SU20L

Breaking 

capacity code

Release 

code

S: 36kA

N: 50kA

Q: 70kA

H: 100kA

P: 150kA

TM: thermo-magnetic 

power distribution 

protection

SU20L: basic type 

electronic power 

distribution protection

SU20S: standard 

type electronic power 

distribution protection

M: electromagnetic 

motor protection

SU20LM: basic type 

electronic motor 

protection

SU20SM: standard 

type electronic motor 

protection

See the current 

specifications 

of TM/SU20L/

SU20S/M/

SU20LM/

SU20SM 

AC circuit 

breakers with 

corresponding 

frame size.

RCD1: 0.03-0.1-0.3-1A 

adjustable (applicable 

to Ex9ML1/2/3)

RCD2: 0.05-0.2-0.5-2A 

adjustable (applicable 

to Ex9ML1/2)

RCD3: 0.05-0.2-0.5-1A 

adjustable (applicable 

to Ex9ML3)

RCD4: 0.1-0.3-1-2A 

adjustable (applicable 

to Ex9ML3)

Ex9M

Product code

3: 400A

250A: default

4: 630A

400A: default

5: 800A

630A: default

6: 1600A

800A,1000A

1250A,1600A

800A: default

Frame size 

code

2: 250A

1: 160A

160A: default

6

SD

AC230

AC

1250

3P

MOD

Function 

code

Application 

category code

Operating 

current code

Control 

voltage

2)

Pole number 

code

1)

Operating 

rules

2)

SD: 

disconnecting 

switch

AC: alternate 

current

DC: direct 

current

1P/2P/3P/4P

Default: manual 

version

MOD: motor-

driven version

Note: 

1)

1P/2P is only applicable to products with frame size of Ex9M1SD and Ex9M2SD

2)

Only applicable to products with frame size of Ex9M6SD.

22

M

AC110V

3P

OTHER

Note: 

The residual current protection module does not have code for breaking capacity, release and rated current, these can be offered separately; 

electronic protection is not available for product with frame size of 160A, please contact Noark for details.

AC230V

AC400V

DC110V

DC220V