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Schneider Electric

LV433889 — This Micrologic 4.2 AL is a 4 poles 4d electronic trip unit used on Compact NSX 100/160/250 circuit breakers. This 40A rating electronic trip unit is an optimum choice for all…

Cable management & power transfer

Part number: LV433889

LV433889 — This Micrologic 4.2 AL is a 4 poles 4d electronic trip unit used on Compact NSX 100/160/250 circuit breakers. This 40A rating electronic trip unit is an optimum choice for all… — Schneider Electric reference LV433889. Request a quotation including shipping to your destination. Send equipment details and certificate requirements so we can confirm the exact specification, fitment, availability and warranty terms before ordering.

Looking for Schneider Electric LV433889? This catalogue reference is listed under Cable management & power transfer. Send the part number and your equipment details so we can confirm the specification, availability and a quotation including shipping.

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Technical specifications

ManufacturerSchneider Electric
Part numberLV433889
CategoryCable management & power transfer
RangeComPact
Range of productComPact NSX100...250
Product or component typeTrip unit
Range compatibilityComPact NSX100 ComPact NSX160 ComPact NSX250
Number of poles4P
Protected poles description3t 3t + N/2 4t
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 current40 A at 40 °C
[Ue] rated operational voltage440 V AC 50/60 Hz
Network frequency50/60 Hz
Long-time pick-up adjustment type Ir (thermal protection)Adjustable 9 settings
[Ir] long-time protection pick-up adjustment range18...40 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
[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 range600 A
Earth-leakage protectionIntegrated
Earth-leakage protection classClass A
Earth-leakage protection sensitity adjustment type IΔnAdjustable
[IΔn] earth-leakage protection sensitivity adjustment range300 mA 500 mA 5 A 30 mA 100 mA 3 A 1 A
Earth-leakage protection specific modeOFF using the IΔn rotary switch
Earth-leakage protection time delay adjustement type ΔtAdjustable
Reference statusPublished part reference; specification and fitment require confirmation
AvailabilityOn request

Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.

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