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Circuit Breaker Accessory, 48VAC, Schneider PowerPact B-Frame Series Circuit Breakers


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Manufacturer Part No:
Newark Part No.:
Product Range
PowerPact Series
Technical Datasheet:
LV426842   Datasheet
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Schneider PowerPact B-Frame Series Circuit Breakers

Shunt Trip (MX)

PowerPact Series

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Technical Documents (4)

CAD Downloads


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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
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Product Overview

The LV426842 from Square D by Schneider Electric is a shunt trip (MX). Shunt trip serves primarily for remote, emergency off commands. It trips the circuit breaker when the control voltage rises above 70% of its rated voltage (Un). Control signals can be impulse type of ≥ 20ms or maintained control signals. An 110VAC to 130VAC shunt trip is suitable for ground fault protection when combined with a Class I ground fault sensing element. The circuit breaker must be reset locally after being tripped by shunt trip (MX). MX voltage releases comply with UL 489, CSA C22.2 number 5 and IEC 60947-2 standards. Listed for field installation per UL file E103955 and certified under CSA file 177007. Tripping by the shunt trip has priority over manual closing in the presence of a standing trip order such an action does not result in any closing even temporarily of the main contacts.
  • Control circuit voltage is 48VAC, 48VDC
  • Impulse, maintained control signal type
  • Range compatibility with PowerPact B, Compact NSXm circuit breakers
  • Impulse duration is greater than or equal to 20ms, clip-on mounting mode
  • Threshold tripping voltage is 0.7 Un during opening time
  • Continuous duty rated coil
  • Endurance is 50% of the rated mechanical endurance of the circuit breaker
  • Auxiliary connection terminal is spring
  • Response time is less than 50ms, wire stripping length is 0.31inch (8mm)


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