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Schneider LV429407 Undervoltage Release MN 220-240V
Schneider LV429407 Undervoltage Release MN 220-240V - Image 2
Schneider LV429407 Undervoltage Release MN 220-240V - Image 3

Schneider LV429407 Undervoltage Release MN 220-240V

Manufacturer: Schneider Electric
Model: LV429407
Release Type: Undervoltage release (MN)
Voltage Range: 220-240V AC 50/60Hz / 208-277V AC 60Hz
Compatibility: Compact NSX, PowerPact, EasyPact CVS
Response Time: < 50 ms

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Product Description

The Schneider Electric LV429407 is an MN undervoltage release accessory designed for the Compact NSX100-630 and PowerPact circuit breakers. It automatically trips the circuit breaker when the control voltage drops below a threshold (35% to 70% of Un), protecting downstream equipment from damage during power dips. It operates at 220-240V AC 50/60Hz and 208-277V AC 60Hz, ensuring system safety and stability.

Standard Features

  • Voltage Protection: Triggers the breaker when the supply voltage drops dangerously low.
  • Automatic Interlocking: Prevents breaker closing if the control voltage is not present.
  • Easy Integration: Snap-in mounting inside the circuit breaker auxiliary compartment.
  • High Reliability: Ensures positive tripping action to maintain system integrity.
  • Wide Application: Essential for safety circuits and preventing motor damage during phase failure.

Technical Specifications

ParameterSpecification
ManufacturerSchneider Electric
ModelLV429407
Product TypeVoltage release
Device Short NameMN (Undervoltage release)
Control Circuit Voltage220...240 V AC 50/60 Hz / 208...277 V AC 60 Hz
Threshold Tripping Voltage0.35 to 0.7 x Un (opening)
Breaker CompatibilityNSX100...630 / NSXm / PowerPact B
Power ConsumptionHold: 5 VA / Inrush: 10 VA
Response Time50 ms
Mounting ModeInternal (Fixed)
StandardIEC 60947-2

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