Description

Main
rangeCompact

product nameCompact NSX

device short nameCompact NSX250F

product or component typeCircuit breaker

device applicationDistribution

poles description4P

protected poles description3t + N/2
3t
4t

neutral positionLeft

[In] rated current250 A at 40 °C

[Ue] rated operational voltage690 V AC 50/60 Hz

network typeAC

network frequency50/60 Hz

suitability for isolationYes conforming to EN 60947-2
Yes conforming to IEC 60947-2

utilisation categoryCategory A

[Icu] rated ultimate short-circuit breaking capacity85 kA at 240 V AC 50/60 Hz conforming to UL 508
22 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2
35 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2
36 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
8 kA Icu at 660/690 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
35 kA at 480 V AC 50/60 Hz conforming to UL 508
30 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2
15 kA at 600 V AC 50/60 Hz conforming to UL 508

Performance levelF 36 kA 415 V AC

trip unit nameMicrologic 2.2

trip unit technologyElectronic

trip unit protection functionsLSoI

control typeToggle

Circuit breaker mounting modeFixed

Complementary
[Ui] rated insulation voltage800 V AC 50/60 Hz

[Uimp] rated impulse withstand voltage8 kV

[Ics] rated service short-circuit breaking capacity35 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2
36 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
85 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2
22 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2
30 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2
8 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2

mechanical durability20000 cycles

electrical durability10000 cycles 440 V In conforming to IEC 60947-2
10000 cycles 690 V In/2 conforming to IEC 60947-2
20000 cycles 440 V In/2 conforming to IEC 60947-2
5000 cycles 690 V In conforming to IEC 60947-2

mounting supportBackplate

upside connectionFront

downside connectionFront

connection pitch35 mm

protection typeL : for overload protection (long time)
So : for short time short-circuit protection with fixed delay
I : for instantaneous short-circuit protection

trip unit rating250 A at 40 °C

Long-time pick-up adjustment type Ir (thermal protection)Adjustable 9 settings

[Ir] long-time protection pick-up adjustment range0.9...1 x Io

Long-time protection delay adjustment type trFixed

[tr] long-time protection delay adjustment range11 s at 7.2 x Ir
16 s at 6 x Ir
400 s at 1.5 x Ir

thermal memory20 minutes before and after tripping

Short-time protection pick-up adjustment type IsdAdjustable 9 settings

[Isd] Short-time protection pick-up adjustment range1.5...10 x Ir

Short-time protection delay adjustment type tsdFixed

Instantaneous protection pick-up adjustment type IiFixed

[Ii] instantaneous protection pick-up adjustment range3000 A

Neutral protection settings0.5 x Ir (3t + N/2)
1 x Ir (4t)
No protection (3t)

auxiliary contact compositionWithout

local signallingLED ready
LED 90 % Ir
LED 105 % Ir

Width (W)140 mm

Height (H)161 mm

Depth (D)86 mm

net weight2.8 kg

Environment
standardsEN/IEC 60947
UL 508

product certificationsCCC
Marine
EAC

overvoltage categoryClass II

electrical shock protection classClass II

pollution degree3 conforming to IEC 60664-1

IP degree of protectionIP40 conforming to IEC 60529

IK degree of protectionIK07 conforming to IEC 62262

ambient air temperature for operation-35…70 °C

ambient air temperature for storage-55…85 °C

Packing Units
Unit Type of Package 1PCE

Number of Units in Package 11

Package 1 Weight2.609 kg

Package 1 Height14 cm

Package 1 width14.4 cm

Package 1 Length19.3 cm

Unit Type of Package 2S04

Number of Units in Package 29

Package 2 Weight24.718 kg

Package 2 Height30 cm

Package 2 width40 cm

Package 2 Length60 cm

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