Schneider Electric LV431470 trip unit MicroLogic 2.2 for ComPact NSX 160/250 circuit breakers, electronic, rating 160A, 4 poles 4d



The Schneider Electric LV431470 trip unit MicroLogic 2.2 for ComPact NSX 160/250 is a high-quality circuit breaker suitable for interior use. It features thermal protection with overload protection, a tripping characteristics of Type C, and 3 phases of AC current. This unit has a maximum amperage of 250A and is designed for industrial and electronics applications, with an operating temperature of 70°C (158°F). Made of ABS/plastic material, this main breaker has a triple pole single throw (3PST) contact configuration and IP40 protection properties. It is corrosion resistant and offers instant break time for reliable operation.

Main
RangeComPact
Range of productComPact NSX100...250
Product or component typeTrip unit
Trip unit nameMicroLogic 2.2
Trip unit technologyElectronic
Range compatibilityComPact NSX160
ComPact NSX250
Device applicationDistribution
Number of poles4P
Protected poles description4t
3t + N/2
3t
Neutral positionLeft
Trip unit protection functionsLSoI
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 rated current160 A at 40 °C
[Ue] rated operational voltage690 V AC 50/60 Hz
Network typeAC
Network frequency50/60 Hz
Complementary
Long-time pick-up adjustment type Ir (thermal protection)Adjustable 9 settings
[Ir] long-time protection pick-up adjustment range63...160 A
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
[tsd] Short-time protection delay adjustment range0.02 s
Instantaneous protection pick-up adjustment type IiFixed
[Ii] instantaneous protection pick-up adjustment range2400 A
Earth-leakage protectionWithout
Neutral protection settings0.5 x Ir (3t + N/2)
1 x Ir (4t)
No protection (3t)
Zone selective interlocking ZSIWithout
Local signallingFlashing LED (green) for ready to operate
LED 105 % Ir (red) for overload
LED 90 % Ir (orange) for overload