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ARM906U

 

MCB with dangerous arc detection  

1M 6A B 6kA

 

ARM910U

MCB with dangerous arc detection 

1M 10A B 6kA

ARM916U

MCB with dangerous arc detection  

1M 16A B 6kA

ARM920U

MCB with dangerous arc detection  

1M 20A B 6kA

ARM925U

MCB with dangerous arc detection 

1M 25A B 6kA

ARM932U

MCB with dangerous arc detection 

1M 32A B 6kA

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ARMxxxU 

MCB with dangerous arc detection

6LE007925A.e

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Hager Electro SAS-BP3 67215 OBERNAI CEDEX-FRANCE // 

Hager LTD, Hortonwood 50, TELFORD-TF1 7FT-UK

Information  

for electricians

Installation and electricial 
connection 

DANGER !

Electric shock when touching 
live parts!
Electric shock can lead to 
death!

 

Before commencing work en-

sure suitable isolation proce-

dures have been followed.

Mount device

A

C

B

Klack!

Klack!

Fig 3: Mounting the MCB-AFDD

 

Open the rail clip.

 

Insert the AFDD until it is connected.

 

Press the metal clamp down.

The AFDD is fixed on the rail.

Connect device

OFF

LINE L IN

LOAD N OUT

LINE N IN

LOAD L OUT

Fig 4: Connect the MCB-AFDD

Wiring diagram

Fig 5: Wiring diagram

Safety notice  

The AFDD (Arc Fault Detection Device) 
may only be installed, connected and 
serviced by a competent electrician.
Before mounting, the AFDD must be 
checked for external damage. If any 
damage or other defect is found, the 
device must not be mounted.
The national regulations, safety 
regulations and installation standards BS 
7671 must be observed.

Design and layout of the 
device 

Fig 1: Layout of the device MCB-AFDD

Test button

LED status display

Handle

Yellow flag

Mounting metal DIN rail clip

Function

MCB-AFD in 1 module ARMxxxU is a single 
device consisting of a miniature circuit 
breaker (MCB) unit with integrated Arc fault 
detection (AFD) unit (2 in 1).
The AFDD mitigates the risk of a fire in the 
final electrical circuits of a fixed installation 
due to arcing fault currents, which under 
certain conditions present a fire ignition risk 
due to dangerous arc fault.

Tools

Fig 2: Tools

2

3

4

1

5

T

N in

N out

Line in

Line out

BS EN 60898-1
BS EN 62606

Information

For more Information, scan the 
QR-Code on the product.

For further technical information 
and for installation in Hager Dis-
tribution Board, review the Instal-
lation Guidance Notes available 
in the products download section 
on Hager website.

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