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Schneider Electric LV429091 - MicroLogic 5.2A Trip Unit

Schneider Electric
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Schneider Electric LV429091 is a solid-state trip unit designed for advanced protection and coordination within low-voltage power distribution systems. It provides comprehensive LSI (Long-Time, Short-Time, and Instantaneous) protection functions for circuits rated up to 690V AC and is factory-set for a fixed 40A current rating. The compact, 2 lb unit features a MicroLogic 5.2 A electronic trip system and is constructed for integration into compatible NS, NSF, NSX, NFNF, NFNL, NFHF, and NFHL breaker frames. It complies with key international standards including EN/IEC 60947-2 and UL 508, ensuring reliable performance in industrial and commercial applications for feeder and motor protection.

Key Features & Specifications
  • Type: Solid-state electronic trip unit (LV4), Compact family
  • Voltage Rating: 690V AC
  • Current Rating: 40A (Fixed)
  • Functions: LSI (Long-Time, Short-Time, Instantaneous) protection
  • Trip Type: MicroLogic 5.2 A
  • Poles: 3
  • Protection: Solid State
  • Standards: EN/IEC 60947-2, UL 508
  • Compatible Frames: NS, NSF, NSX, NFNF, NFNL, NFHF, NFHL
  • Weight: 2 lb