The Schneider Electric Micrologic 4.2 AL trip unit is an electronic protection device designed for Compact NSX 160/250 circuit breakers. This specific model is engineered for 4-pole circuit breakers and features an AL (Earth Leakage) protection function. It is rated for a maximum current of 160A, making it suitable for medium to heavy-duty industrial power distribution applications.

Technical details

• Trip Unit Type: Electronic Micrologic 4.2 AL
• Protection Functions: Earth Leakage (AL)
• Compatible Circuit Breaker Series: Schneider Electric Compact NSX 160/250
• Number of Poles: 4d (4 poles)
• Current Rating: 160 Amperes
• Voltage Compatibility: Verify with manufacturer datasheet for specific voltage range.
• Trip Unit Technology: Electronic

Applications & compatibility

This Micrologic 4.2 AL trip unit is integral to Schneider Electric's Compact NSX series of molded case circuit breakers. It is commonly deployed in electrical distribution panels for commercial buildings, manufacturing facilities, and data centers where reliable earth leakage protection is critical. Its compatibility is specifically with the NSX 160 and NSX 250 frame sizes.

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 LV433891 or contact our technical team for cross-reference assistance with compatible Compact NSX components.