278 / 338
D-44
Additional information
Electrical characteristics
Compact NSX100 to NSX630
Copper cable, withstand temperature = 105 °C
Devices
Permissible current (A)
Ambient temperature around the switchboard
25 °C
30 °C
35 °C
40 °C
45 °C
50 °C
IP
y
31
NSX100
TMD-TMG
Size per phase
50 mm²
50 mm²
50 mm²
50 mm²
50 mm²
50 mm²
I nc (A)
100
100
100
97.5
95
92.5
NSX125
TMD-TMG
Size per phase
70 mm²
70 mm²
70 mm²
70 mm²
70 mm²
70 mm²
I nc (A)
125
125
125
122
119
115
NSX160
(1)
TMD-TMG
Size per phase
95 mm²
95 mm²
95 mm²
95 mm²
95 mm²
95 mm²
I nc (A)
160
160
160
156
152
148
NSX250
(1)
TMD-TMG
Size per phase
120 mm²
120 mm²
120 mm²
120 mm²
120 mm²
120 mm²
I nc (A)
250
244
238
231
225
219
NSX100
STR
Size per phase
50 mm²
50 mm²
50 mm²
50 mm²
50 mm²
50 mm²
I nc (A)
100
100
100
100
100
100
NSX160
STR
Size per phase
95 mm²
95 mm²
95 mm²
95 mm²
95 mm²
95 mm²
I nc (A)
160
160
160
160
160
160
NSX250
(2)
STR
Size per phase
120 mm²
120 mm²
120 mm²
120 mm²
120 mm²
120 mm²
I nc (A)
250
245
237
230
225
220
IP > 31
NSX100
TMD-TMG
Size per phase
50 mm²
50 mm²
50 mm²
50 mm²
50 mm²
50 mm²
I nc (A)
100
100
100
97.5
95
92.5
NSX125
TMD-TMG
Size per phase
70 mm²
70 mm²
70 mm²
70 mm²
70 mm²
70 mm²
I nc (A)
125
125
125
122
119
115
NSX160
(1)
TMD-TMG
Size per phase
95 mm²
95 mm²
95 mm²
95 mm²
95 mm²
95 mm²
I nc (A)
160
160
160
156
152
148
NSX250
(1)
TMD-TMG
Size per phase
120 mm²
120 mm²
120 mm²
120 mm²
120 mm²
120 mm²
I nc (A)
237
230
225
220
215
210
NSX100
STR
Size per phase
50 mm²
50 mm²
50 mm²
50 mm²
50 mm²
50 mm²
I nc (A)
100
100
100
100
100
100
NSX160
STR
Size per phase
95 mm²
95 mm²
95 mm²
95 mm²
95 mm²
95 mm²
I nc (A)
160
160
160
160
160
160
NSX250
(2)
STR
Size per phase
120 mm²
120 mm²
120 mm²
120 mm²
120 mm²
120 mm²
I nc (A)
237
230
225
220
215
210
(1)
For a withdrawable NSX160 or NSX250 equipped with a Vigi or an insulation-monitoring
module, multiply the In values by 0.9.
(2)
For a withdrawable NSX250 equipped with a Vigi or an insulation-monitoring module, multiply
the In values by 0.86.
Note:
the values indicated above have been validated for Prisma P switchboards.
Note:
Schneider Electric recommends connecting Compact NSX400/630 circuit breakers with
insulated flexible bars or rigid bars (see page D-43).
Designing connections
y
630 A
Compact circuit breakers
NSX100 to NSX630
Copper cable
Cables: pratical guidelines
This section doesn’t concern customer’s loads connection (see IEC 61439-1,
IEC 60364).
Schneider Electric provides cabling recommendations according to the rating of the
circuit breaker.
The size of cables must be selected according to:
b
the level of current
b
the ambient temperature around the conductors
b
the degree of protection for the switchboard.
The tables below take into account the installation conditions for each type of device
(permissible temperature at connection terminals, etc.).
They follow the temperature derating values for installed devices in all cubicles with
cover panels rated IP
y
55.
b
switchboard internal temperature 60 °C
b
connections using copper cables.
The withstand temperature of insulating material of cable = 105°C.