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4.3

Miniature Circuit Breakers

10kA & 15kA B, C & D Curve

Single Pole MCBs

Rating

Width

Cat ref.

Cat ref.

Cat ref.

(17.5mm)

“B” Curve

“C” Curve

“D” Cruve

0.5A

1 Mod

-

NCN100A

NDN100A

1A

1 Mod

-

NCN101A

NDN101A

2A

1 Mod

-

NCN102A

NDN102A

3A

1 Mod

-

NCN103A

NDN103A

4A

1 Mod

-

NCN104A

NDN104A

6A

1 Mod

NBN106A

NCN106A

NDN106A

10A

1 Mod

NBN110A

NCN110A

NDN110A

16A

1 Mod

NBN116A

NCN116A

NDN116A

20A

1 Mod

NBN120A

NCN120A

NDN120A

25A

1 Mod

NBN125A

NCN125A

NDN125A

32A

1 Mod

NBN132A

NCN132A

NDN132A

40A

1 Mod

NBN140A

NCN140A

NDN140A

50A

1 Mod

NBN150A

NCN150A

NDN150A

63A

1 Mod

NBN163A

NCN163A

NDN163A

Double Pole MCBs

Rating

Width

Cat ref.

Cat ref.

Cat ref.

(35mm)

“B” Curve

“C” Curve

“D” Cruve

0.5A

2 Mod

-

NCN200A

NDN200A

1A

2 Mod

-

NCN201A

NDN201A

2A

2 Mod

-

NCN202A

NDN202A

3A

2 Mod

-

NCN203A

-

4A

2 Mod

-

NCN204A

NDN204A

6A

2 Mod

NBN206A

NCN206A

NDN206A

10A

2 Mod

NBN210A

NCN210A

NDN210A

16A

2 Mod

NBN216A

NCN216A

NDN216A

20A

2 Mod

NBN220A

NCN220A

NDN220A

25A

2 Mod

NBN225A

NCN225A

NDN225A

32A

2 Mod

NBN232A

NCN232A

NDN232A

40A

2 Mod

NBN240A

NCN240A

NDN240A

50A

2 Mod

NBN250A

NCN250A

NDN250A

63A

2 Mod

NBN263A

NCN263A

NDN263A

Description

These MCBs allow you to ensure

• Protection against short

circuits

• Protection against overload

current

• Control

• Isolation

• Trip free mechanism

Isolation

The state of isolation is clearly

indicated by the “OFF”

mechanical position on the

toggle with the green colour.

Will accept accessories, see

page 4.5.

Connection capacity

• 25mm

2

flexible conductor

• 35mm

2

rigid conductor

Complies with:

• BS EN 60898 (10kA)

• BS EN 60947-2 (15kA)

NCN116A

NCN216A

Protection

Devices