The Schneider Electric 33073 is a S144A Micrologic 6.0A trip unit, designed for use with NT and NW type circuit breakers. This unit integrates LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault) protection functions, providing comprehensive overcurrent and ground fault protection for electrical distribution systems. It is a critical component for ensuring the safety and reliability of industrial power infrastructure.

Technical details

• Series: Micrologic 6.0A
• Protection Functions: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
• Compatible Circuit Breaker Frames: NT, NW
• Trip Unit Type: Electronic Trip Unit
• Ground Fault Sensitivity: Adjustable settings for ground fault protection
• Short-Time Delay: Adjustable settings for short-time protection
• Instantaneous Trip: Adjustable settings for instantaneous overcurrent protection
• Long-Time Delay: Adjustable settings for long-time overcurrent protection

Applications & compatibility

This Micrologic 6.0A trip unit is specifically engineered for Schneider Electric NT and NW series molded case circuit breakers. It is commonly deployed in industrial facilities, commercial buildings, and data centers to protect main feeders, distribution feeders, and motor circuits. Its advanced protection capabilities make it suitable for applications requiring precise fault detection and coordination.

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 33073 S144A Micrologic 6.0A trip unit or contact our technical team for cross-reference assistance with compatible NT and NW breaker components.