The Schneider Electric Micrologic 4.2 AL trip unit is designed for use with Compact NSX 100, 160, and 250 series circuit breakers. This electronic trip unit provides advanced protection and control capabilities for electrical distribution systems. It is specifically engineered for applications requiring precise current monitoring and fault interruption.

Technical details

• Trip Unit Type: Micrologic 4.2 AL
• Compatible Circuit Breaker Series: Compact NSX 100, NSX 160, NSX 250
• Current Rating: 40A
• Number of Poles: 4
• Pole Configuration: 4d (4 normally open auxiliary contacts)
• Protection Functions: Electronic trip unit with adjustable settings (specific settings require datasheet verification)
• Control Type: Electronic

Applications & compatibility

This trip unit is commonly integrated into electrical distribution panels and motor control centers within manufacturing facilities, data centers, and commercial buildings. It ensures reliable protection for circuits powering machinery such as pumps, fans, conveyors, and HVAC systems, preventing damage from overloads and short circuits.

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 LV433889 or contact our technical team for cross-reference assistance with compatible Compact NSX components.