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Schneider Electric LV433892

Schneider LV433892 MicroLogic 4.2 AL trip unit, 250 A, 4-pole, discontinued

MPNLV433892
Obsolete

Schneider LV433892 Compact Nsx — now discontinued, supplied from remaining surplus and broker stock.

$1,311.62Ref. price · indicative, final on quote
Schneider Electric LV433892 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

LV433892 key specifications
ParameterValue
Network typeAC
Protection typeL : for overload protection (long time) So : for short time short-circuit protection with fixed delay I : for instantaneous short-circuit protection
Range of productComPact NSX100...250
Product or component typeTrip unit
Long-time protection delay adjustment type trFixed
Short-time protection delay adjustment type tsdFixed
Short-time protection pick-up adjustment type isdAdjustable
Instantaneous protection pick-up adjustment type iiFixed
Earth-leakage protection sensitity adjustment type iδnAdjustable
Earth-leakage protection time delay adjustement type δtAdjustable
Long-time pick-up adjustment type ir (thermal protection)Adjustable 9 settings
[Ue] rated operational voltage440 V AC 50/60 Hz

All specifications

LV433892 additional specifications
ParameterValue
Trip unit rated current250 A at 40 °C
Network frequency50/60 Hz
Poles4P
Protected poles description3t 3t + N/2 4t
IP degree of protectionIP40 conforming to IEC 60529
Pollution degree3 conforming to IEC 60947-1
StandardsNEMA AB1 EN 60947-2 IEC 60947-2 UL 508
RangeComPact
Thermal memory20 minutes before and after tripping
Trip unit nameMicroLogic 4.2 AL
Local signallingFlashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload Color indicator (yellow) for residual current
Neutral positionLeft
Device applicationDistribution
Trip unit technologyElectronic
Earth-leakage protectionIntegrated
Neutral protection settings0.5 x Ir (3t + N/2) 1 x Ir (4t) No protection (3t)
Earth-leakage protection classClass A
Trip unit protection functionsLSoI
Zone selective interlocking ZSIWithout
Ambient air temperature for storage-40...85 °C
Ambient air temperature for operation-25...70 °C
Earth-leakage protection specific modeOFF using the IΔn rotary switch
[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
[Ir] long-time protection pick-up adjustment range100...250 A
[tsd] short-time protection delay adjustment range0.02 s
[Isd] short-time protection pick-up adjustment range1.5...10 x Ir
[Ii] instantaneous protection pick-up adjustment range3000 A
[δt] earth-leakage protection time delay adjustment range0 ms 500 ms 150 ms 60 ms 1 s
[IΔn] earth-leakage protection sensitivity adjustment range5 A 300 mA 100 mA 500 mA 30 mA 1 A 3 A

Product details

Overview

The LV433892 is a MicroLogic 4.2 AL electronic trip unit for the Schneider ComPact NSX250 molded-case breaker, rated 250 A continuous on a 440 V AC distribution network with LSoI protection functions. It carries a 4-pole frame with neutral on the left, integrated earth-leakage protection, and a fixed long-time delay curve that trips at 11 s at 7.2 x Ir.

The closest functional sibling is the LV433808, a 3-pole version of the same MicroLogic 4.2 AL trip unit also rated 250 A at 440 V AC. The LV433892 adds a fourth pole for 3-phase-plus-neutral distribution panels where the neutral must be switched and protected; the LV433808 fits 3-pole-only boards without rewiring the breaker frame.

MPN
LV433892