Schneider LV429407 Undervoltage release MN

Schneider Electric LV429407 is an undervoltage release (MN type) designed for use with ComPacT NSX and compatible circuit breaker ranges. It monitors control circuit voltage and triggers circuit breaker opening when voltage drops below the operating threshold, providing automatic protection against undervoltage conditions. Compatible with AC supply voltages of 220...240 V at 50/60 Hz and 208...277 V at 60 Hz.

Technical specifications:

• Commercial reference: LV429407
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX100...250, ComPacT NSX400...630 (and DC / PV / new generation variants)
• Device short name: MN
• Product type: Voltage release - undervoltage release coil
• Application: Control
• Control circuit voltage: 220...240 V AC 50/60 Hz / 208...277 V AC 60 Hz
• Opening threshold: 0.35...0.7 x Un
• Closing threshold: 0.85 x Un
• Response time: 50 ms
• Holding power: 5 VA
• Inrush power: 10 VA
• Auxiliary terminal block: Spring terminal, 0.5...1.5 mm² (AWG 20...AWG 16)
• Strip length: 7 mm
• Package weight: 118.6 g
• Warranty: 18 months

Features and benefits:

• Automatic circuit breaker trip on undervoltage, protecting equipment from damage caused by low supply voltage
• Fast 50 ms response time ensures rapid disconnection under fault conditions
• Compatible with a wide range of ComPacT NSX circuit breakers including DC, PV, and new generation variants, as well as EasyPact CVS and PowerPact Multistandard
• Spring-type auxiliary terminals accept 0.5...1.5 mm² conductors for reliable, tool-free wiring
• Supports both 50 Hz and 60 Hz network frequencies, suitable for global applications

Applications:

• Industrial control panels requiring automatic disconnection on supply voltage loss or drop
• Motor control centers where undervoltage protection prevents uncontrolled restarts
• Distribution boards in commercial and industrial installations with critical load protection requirements
• DC and photovoltaic (PV) switchgear assemblies using ComPacT NSX DC or PV variants

Compliant with Schneider Electric environmental standards including RoHS and WEEE directives. Part of the Schneider Electric ComPacT NSX range.

Also known as: Schneider LV429407, Schneider Electric LV429407, undervoltage release coil NSX, MN release ComPacT.