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Schneider Electric LV839263 — Air Circuit Breakers

Schneider Electric LV839263 MN Undervoltage Release, 200-250

MPNLV839263
Obsolete

Schneider Electric LV839263 MN undervoltage release, 200-250 V AC/DC, drawout mount, for MasterPact MTZ, obsolete.

Schneider Electric LV839263 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

LV839263 — Identification
ParameterValue
Product typeVoltage release
ApplicationSafety
LV839263 — Mechanical & connection
ParameterValue
Control typeCommunicating Standard
Mounting modeDrawout
LV839263 — Other specifications
ParameterValue
Response time40 ms +/- 5 % MasterPact MTZ1 90 ms +/- 5 % MasterPact MTZ2 90 ms +/- 5 % MasterPact MTZ3
Device short nameMN
Signalling functionMN open Coil powered Error
Supply holding power4.5 W 4.5 VA
Voltage release typeUndervoltage release
Threshold tripping voltage0.35...0.7 Un on opening 0.85 Un on closing
Coil voltage200...250 V AC 50/60 Hz 200...250 V DC

Product details

The LV839263 is a Schneider Electric MN undervoltage release for MasterPact MTZ drawout circuit breakers. It trips the breaker when control voltage drops below a set threshold — the threshold tripping voltage is 0.35...0.7 Un on opening and 0.85 Un on closing. Control circuit voltage is 200...250 V AC 50/60 Hz or 200...250 V DC, with a holding power draw of 4.5 W / 4.5 VA.

Mounting mode is drawout, meaning the release plugs into the MasterPact MTZ breaker's accessory compartment — no hardwiring to the breaker itself. Response time varies by frame: 40 ms ± 5% for MTZ1, 90 ms ± 5% for MTZ2 and MTZ3. The signalling function reports three states: MN open, coil powered, and error.

Frequently asked questions

Is LV839263 available via RFQ confirmation and what is the lead time for an order?

Availability and lead time are confirmed at quote time against an RFQ. As an obsolete part, it's sourced through independent distribution — not a stock-on-shelf item.

What is LV839263's listed control type?

The control type is Communicating Standard, meaning it interfaces with the breaker's communication bus for status and control signals.

What is LV839263's listed mounting mode?

Drawout — it plugs into the MasterPact MTZ breaker's accessory compartment, not hardwired to the breaker.

MPN
LV839263