OPIS PRODUKTU
SCHNEIDER ELECTRIC LV429289 - Electronic Micrologic 4.2 Trip Unit
The SCHNEIDER ELECTRIC LV429289 is an electronic Micrologic 4.2 trip unit designed for integration with Compact NSXm 160A and 250A frame molded case circuit breakers. This component provides comprehensive protection functionalities including long-time, short-time, instantaneous, and ground-fault protection for low voltage electrical distribution systems. It is engineered for precise overcurrent and short-circuit management in industrial power panels, motor control centers, and critical infrastructure applications.
Technical Specifications:
- SERIES/FAMILY: Compact NSXm
- COMPONENT TYPE: Electronic Trip Unit (Micrologic 4.2)
- ELECTRICAL SPECS:
- NOMINAL CURRENT RANGE: Compatible with circuit breakers up to 250A
- VOLTAGE RATING: Up to 690VAC (dependent on associated circuit breaker)
- PROTECTION FUNCTIONS: Long-time (overload), Short-time (short-circuit with delay), Instantaneous (short-circuit), Ground-fault
- ADJUSTABLE SETTINGS: Ir (long-time current), Tr (long-time delay), Isd (short-time current), Tsd (short-time delay), Ii (instantaneous current), Ig (ground-fault current), Tg (ground-fault delay)
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Modular plug-in unit
- MOUNTING: Internal to Compact NSXm 160A and 250A frame circuit breakers
- INTERFACE/CONTROL:
- USER INTERFACE: Rotary switches, pushbuttons for parameter adjustment
- INDICATORS: LED indicators for trip status and overload pre-alarm
- ENVIRONMENTAL/MOUNTING:
- IP RATING: Inherits the IP rating of the circuit breaker enclosure (typically IP40 for front face)
- COOLING METHOD: Passive
- COMPATIBILITY/APPLICATION:
- COMPATIBILITY: Schneider Electric Compact NSXm 160A and 250A molded case circuit breakers
- APPLICATION: Low voltage power distribution, motor protection, generator protection, transformer protection in industrial, commercial, and infrastructure facilities
