The Schneider Electric Masterpact MP12H1 STR58U is a 3-pole molded case circuit breaker designed for robust electrical protection in industrial settings. This unit, part of the Masterpact family, is engineered to handle significant current loads and is commonly integrated into power distribution systems for manufacturing facilities and heavy industry.

Technical details

• Series: Masterpact
• Model: MP12H1
• Type: Molded Case Circuit Breaker (MCCB)
• Poles: 3
• Voltage Rating: 600V AC
• Current Rating: 1200A
• Trip Unit Type: STR58U
• Trip Functionality: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
• Trip Setting Code: 54750

Applications & compatibility

This Masterpact circuit breaker is suitable for main distribution panels, motor control centers, and feeder protection in demanding environments. It is compatible with systems requiring reliable overcurrent and short-circuit protection, including those found in food and beverage processing, automotive manufacturing, and water treatment plants.

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 MP12H1 STR58U or contact our technical team for cross-reference assistance with compatible Masterpact components.