Schneider LV431515


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Schneider Electric trip unit MicroLogic 6.2 A for ComPact NSX 250 circuit breakers, electronic, rating 250A, 4 poles 4d

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Range of productComPact NSX100…250
Product or component typeTrip unit
Trip unit nameMicroLogic 6.2 A
Trip unit technologyElectronic
Range compatibilityComPact NSX250
Device applicationDistribution
Number of poles4P
Protected poles description3t + OSN
3t + N/2
Neutral positionLeft
Trip unit protection functionsLSIG
Protection typeL : for overload protection (long time)
S : for short time short-circuit protection
I : for instantaneous short-circuit protection
G : for ground fault protection
Trip unit rated current250 A at 40 °C
[Ue] rated operational voltage690 V AC 50/60 Hz
Network typeAC
Network frequency50/60 Hz
Long-time pick-up adjustment type Ir (thermal protection)Adjustable 9 settings
[Ir] long-time protection pick-up adjustment range100…250 A
Long-time protection delay adjustment type trAdjustable
[tr] long-time protection delay adjustment range15…400 s at 1.5 x Ir
0.35…11 s at 7.2 x Ir
0.5…16 s at 6 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 tsdAdjustable
[tsd] Short-time protection delay adjustment range0…0.4 s I²t=off
0.1…0.4 s I²t=on
Instantaneous protection pick-up adjustment type IiAdjustable
[Ii] instantaneous protection pick-up adjustment range1.5…12 x In
Ground-fault protection pick-up adjustment type IgAdjustable
[Ig] ground-fault protection pick-up adjustment range0.2…1 x In for In = 40 A
0.4…1 x In for In > 40 A
Ig enable on/off
Ground-fault protection time delay adjustment type tgAdjustable
[tg] ground-fault protection time delay adjustment range0…0.4 s I²t=off
0.1…0.4 s I²t=on
Earth-leakage protectionWithout
Neutral protection settings0.5 x Ir (3t + N/2)
1 x Ir (4t)
1.6 x Ir (3t + OSN)
No protection (3t)
Zone selective interlocking ZSIWith
Local signallingFlashing LED (green) for ready to operate
LED 105 % Ir (red) for overload
LED 90 % Ir (orange) for overload
Display typeLCD display
type of measurementAmmeter
Communication of dataMaintenance indicators
Instantaneous and demand values
Energy metering
Power quality
Time-stamped histories and event tables
Demand current and power
Protection and alarm settings
Electrical data recordingMaintenance indicators
StandardsUL 508
EN/IEC 60947-2
Product certificationsCCC
Ambient air temperature for operation-25…70 °C
Ambient air temperature for storage-40…85 °C
Contractual warranty
Warranty18 months

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