34414 – Schneider

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NS1250N Circuit Breaker Compact Micrologic 2.0E “Schneider”
1250A, 4P, 4t

This Compact NS1250N is a complete 3 poles fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all standard and specific applications. The breaking capacity (Icu) is 50kA rms at 415VAC 50/60Hz. The operational voltage is 690VAC 50/60Hz. The circuit breaker can be manually operated with ON, OFF or “push to trip” buttons. This product embeds an electronic Micrologic 2.0E trip unit, with 1250A rating. MicroLogic 2.0E control unit provides adjustable long time and instantaneous protections (ANSI codes 49/50). MicroLogic 2.0E is equipped with a digital LCD screen and display energy (energy meter), in addition to the ammeter measurement of MicroLogic A. This 3 poles version (327mm x 210mm x 147mm) comes with a variety of optional functions and accessories. It is compliant with IEC 69947-1 and IEC60947-2 international standards and marine specifications. Compact NS1250N is part of Schneider Electric EcoStruxure Power architecture

ComPact NS630b…1600
Distribution
Number of poles
4P
Protected poles description
4D
Neutral position
Left
(In) rated current up to 65 °C
1250 A at 50 °C
[Ue] rated operational voltage
690 V AC 50/60 Hz
Network type
AC
Network frequency
50/60 Hz
Suitability for isolation
Yes conforming to EN/IEC 60947-2
Utilisation category
Category B
[Icu] rated ultimate short-circuit breaking capacity
30 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2
85 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2
40 kA Icu at 500/525 V AC 50/60 Hz conforming to IEC 60947-2
Performance level
N 50 kA 415 V AC
Trip unit name
MicroLogic 2.0 E
Trip unit technology
Electronic
Trip unit protection functions
LI
Control type
Toggle
Rotary handle
Circuit breaker mounting mode
Fixed
Complementary
[Ui] rated insulation voltage
800 V AC 50/60 Hz conforming to IEC 60947-2
[Uimp] rated impulse withstand voltage
8 kV conforming to IEC 60947-2
[Ics] rated service short-circuit breaking capacity
30 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
40 kA at 500/525 V AC 50/60 Hz conforming to IEC 60947-2
50 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2
50 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2
[Icw] rated short-time withstand current
19.2 kA 1 s conforming to IEC 60947-2
Mechanical durability
10000 cycles
Electrical durability
2000 cycles at 690 V In
3000 cycles at 690 V In/2
4000 cycles at 440 V In
5000 cycles at 440 V In/2
Power losses
44 W
Mounting support
Backplate
upside connection
Front
Downside connection
Front
Connection pitch
70 mm
Protection type
L : for overload protection (long time)
I : for instantaneous short-circuit protection
Trip unit rating
1250 A at 50 °C
Long-time pick-up adjustment type Ir (thermal protection)
Adjustable 9 settings
[Ir] long-time protection pick-up adjustment range
0.4…1 x In
Long-time protection delay adjustment type tr
Adjustable 9 settings
[tr] long-time protection delay adjustment range
12.5…600 s at 1.5 x Ir
0.5…24 s at 6 x Ir
0.7…16.6 s at 7.2 x Ir
Thermal memory
20 mn
Instantaneous protection pick-up adjustment type Ii
Adjustable
[Ii] instantaneous protection pick-up adjustment range
1.5…10 x Ir
Earth-leakage protection
Without
Neutral protection settings
No protection (3D)
0.5 x Ir (3D + N/2)
1 x Ir (4D)
Zone selective interlocking ZSI
Without
Auxiliary contact composition
1 NO/NC
Local signalling
4 LEDs (red) for fault indication
1 LED (yellow) for overload
Display type
LCD display
type of measurement
Energy meter
Width (W)
280 mm
Height (H)
327 mm
Depth (D)
147 mm
Net weight
18 kg
Environment
Standards
EN/IEC 60947-2
Product certifications
ASEFA
ASTA
Pollution degree
3 conforming to IEC 60947
IP degree of protection
IP40 conforming to IEC 60529
IK degree of protection
IK07 conforming to EN 50102
Ambient air temperature for operation
-25…70 °C
Ambient air temperature for storage
-40…85 °C
Relative humidity
0…95 %
Operating altitude
0…2000 m without derating
2000 m…5000 m with derating
Packing Units
Unit Type of Package 1
PCE
Number of Units in Package 1
1
Package 1 Height
30.000 cm
Package 1 Width
40.000 cm
Package 1 Length
60.000 cm
Package 1 Weight
16.600 kg