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A-70
Functions and
characteristics
Accessories and auxiliaries
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Front connection
Bars or cables with lugs
Standard terminals
Compact NSX100 to 630 come with terminals comprising snap-in nuts with screws:
Compact NSX100: M6 nuts and screws. Compact NSX160/250: M8 nuts and
b
screws
Compact NSX400/630: M10 nuts and screws.
b
These terminals may be used for:
direct connection of insulated bars or cables with lugs
b
terminal extensions offering a wide range of connection possibilities.
b
Interphase barriers or terminal shields are recommended. They are mandatory for
certain connection accessories (in which case the interphase barriers are provided).
Bars
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mandatory.
Maximum size of bars
Compact NSX circuit breaker
100/160/250
400/630
Without spreaders
pitch (mm)
35
45
maximum bar size (mm)
20 x 2
32 x 6
With spreaders
pitch (mm)
45
52.5
maximum bar size (mm)
32 x 2
40 x 6
Crimp lugs
There are two models, for aluminium and copper cables.
It is necessary to use narrow lugs, compatible with device connections. They must
be used with interphase barriers or long terminal shields. The lugs are supplied with
interphase barriers and may be used for the types of cables listed below.
Cable sizes for connection using lugs
Compact NSX circuit breaker
100/160/250
400/630
Copper cables
size (mm²)
120, 150, 180 240, 300
crimping
hexagonal barrels or punching
Aluminium cables
size (mm²)
120, 150, 180 240, 300
crimping
hexagonal barrels
Terminal extensions
Extensions with anti-rotation ribs can be attached to the standard terminals to
provide numerous connection possibilities in little space:
straight terminal extensions
b
right-angle terminal extensions
b
edgewise terminal extensions
b
double-L extensions
b
45° extensions.
b
Spreaders
Spreaders may be used to increase the pitch:
NSX100 to 250: the 35 mm pitch can be increased to 45 mm
b
NSX400/630: the 45 mm pitch can be increased to 52 or 70 mm.
b
Bars, cable lugs or cable connectors can be attached to the ends.
One-piece spreader for NSX100 to 250
Connection of large cables may require an increase in the distance between the
device terminals.
The one-piece spreader is the means to:
increase the 35 mm pitch of the NSX100 to 250 circuit-breaker terminals to the
b
45 mm pitch of a NSX400/630 device
use all the connection and insulation accessories available for the next largest
b
frame size (lugs, connectors, spreaders, right-angle and edgewise terminal
extensions, terminal shields and interphase barriers).
It may also be used for Interpact INS switch-disconnectors.
Equipped with a single-piece spreader, Compact NSX devices can be mounted:
at the back of a switchboard
b
behind the front panel with a raiser.
b
The one-piece spreader is also the means to:
align devices with different frame sizes in the switchboard
b
use the same mounting
b
plate, whatever the device.
Pitch (mm) depending on the type of spreader
Compact NSX circuit breaker
NSX100 to 250 NSX400 to 630
Without spreaders
35
45
With spreaders
45
52.5 or 70
With one-piece spreader
45
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standard front connection using bars or
cables with lugs.
Cable connectors are available for bare
cables. Rear connection is also possible.
DB112168
DB112169
Insulated bar.
DB112170
Small lug for copper cables.
DB112171
Small lug for Al cables.
DB112172
DB112173
DB112174
Straight terminal
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Right-angle terminal
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DB112175
DB112176
DB112177
Edgewise terminal
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Double-L terminal
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Spreaders.
DB112181
DB112179
DB112180
Mounting at the
back of a
switchboard.
Mounting
behind the front
panel with a
raiser.
559E1840.indd
version: 1.0