The Schneider Electric LV433963 is a Micrologic 4.3 AL trip unit designed for use with Compact NSX 630 circuit breakers. This electronic trip unit provides advanced protection and control capabilities for electrical distribution systems. It is engineered to ensure reliable operation and safety in demanding industrial environments.

Technical details

• Trip Unit Series: Micrologic 4.3 AL
• Compatible Circuit Breaker Series: Compact NSX 630
• Type: Electronic Trip Unit
• Number of Poles: 4
• Pole Configuration: 4d (likely indicating 4 normally open auxiliary contacts or similar functionality, verify with datasheet)
• Current Rating: 570A
• Protection Functions: Includes adjustable long-time, short-time, instantaneous, and ground fault protection (AL designation typically implies adjustable ground fault). Specific settings and ranges require datasheet verification.
• Communication Capabilities: Micrologic 4.3 units often support communication protocols for remote monitoring and control; consult the datasheet for specific protocol support.

Applications & compatibility

This trip unit is integral to the protection scheme of Compact NSX 630 circuit breakers, commonly found in power distribution panels, motor control centers, and electrical switchgear. Its advanced electronic features make it suitable for applications requiring precise overcurrent and ground fault protection in commercial buildings, manufacturing facilities, and data centers.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the LV433963 or contact our technical team for cross-reference assistance with compatible Compact NSX components.