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Schneider Electric LV433968

Schneider LV433968 MicroLogic 7.3 E AL trip unit, 570 A, 4 poles

MPNLV433968
Active

Schneider LV433968 Compact Nsx — now discontinued, supplied from remaining surplus and broker stock.

$2,698.88Ref. price · indicative, final on quote
Schneider Electric LV433968 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

LV433968 key specifications
ParameterValue
Display typeLCD display
Network typeAC
Protection typeL : for overload protection (long time) S : for short time short-circuit protection I : for instantaneous short-circuit protection
Range of productComPact NSX400...630
Type of measurementEnergy meter
Product or component typeTrip unit
Long-time protection delay adjustment type trAdjustable
Short-time protection delay adjustment type tsdAdjustable
Short-time protection pick-up adjustment type isdAdjustable
Instantaneous protection pick-up adjustment type iiAdjustable
Earth-leakage protection sensitity adjustment type iδnAdjustable
Earth-leakage protection time delay adjustement type δtAdjustable

All specifications

LV433968 additional specifications
ParameterValue
Long-time pick-up adjustment type ir (thermal protection)Adjustable 9 settings
[Ue] rated operational voltage440 V AC 50/60 Hz
Trip unit rated current570 A at 40 °C
Network frequency50/60 Hz
Poles4P
Protected poles description4t 3t + N/2 3t 3t + OSN
IP degree of protectionIP40 conforming to IEC 60529
Communication of dataMaximeters/minimeters Protection and alarm settings Earth leakage current Maintenance indicators Instantaneous and demand values Energy metering Time-stamped histories and event tables Test reports Demand current and power Power quality
Pollution degree3 conforming to IEC 60947-1
StandardsEN 60947-2 IEC 60947-2 UL 508 NEMA AB1
RangeComPact
Thermal memory20 minutes before and after tripping
Trip unit nameMicroLogic 7.3 E AL
Local signallingFlashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload
Neutral positionLeft
Device applicationDistribution
Trip unit technologyElectronic
Earth-leakage protectionIntegrated
Neutral protection settings0.5 x Ir (3t + N/2) 1 x Ir (4t) 1.6 x Ir (3t + OSN) No protection (3t)
Earth-leakage protection classClass A
Trip unit protection functionsLSI
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 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
[Ir] long-time protection pick-up adjustment range250...570 A
[tsd] short-time protection delay adjustment range0...0.4 s
[Isd] short-time protection pick-up adjustment range1.5...10 x Ir
[Ii] instantaneous protection pick-up adjustment range1.5...12 x In Compact NSX400 6900 A Compact NSX630
[δt] earth-leakage protection time delay adjustment range60 ms 0 ms 1 s 150 ms 500 ms
[IΔn] earth-leakage protection sensitivity adjustment range3 A 10 A 5 A 300 mA 500 mA 1 A

Product details

Overview

The LV433968 is a MicroLogic 7.3 E AL electronic trip unit for the Schneider ComPact NSX630 molded case circuit breaker, rated 570 A across 4 poles on a 440 V AC network. It provides LSI protection (long-time, short-time, instantaneous) with adjustable pickup and delay ranges, plus integrated earth-leakage protection and an LCD display for energy metering and event logs.

The 570 A rating sets the long-time pickup range from 250 A to 570 A, with adjustable short-time delay up to 0.4 s and instantaneous pickup fixed above the short-time setting — sized for distribution feeders where coordination with downstream breakers is required. The 20-minute thermal memory before and after tripping prevents nuisance reclosing on hot conductors, a detail that matters when sequencing automatic reclosures in a distribution panel.

MPN
LV433968