Schneider Electric STR23SE 630A 3-Pole 750 V Circuit Breaker

Meet the Schneider Electric STR23SE 630A 3-Pole 750 V Circuit Breaker — a purpose-built protection device designed for demanding three-phase power systems. Built by Schneider Electric, this circuit breaker delivers reliable overcurrent protection to help prevent equipment damage and unplanned downtime in industrial and commercial electrical assemblies.

Key specifications

• Current rating: 630 A
• Poles: 3
• Voltage rating: 750 V
• Part Number: STR23SE
• Brand: Schneider Electric

Why this protection solution matters

In three-phase environments, simultaneous disconnection of all phases is essential for safe fault clearance. The STR23SE’s 3-pole design ensures synchronized tripping across all lines, reducing arc flash risk and safeguarding connected equipment from short-circuits and overloads. With a robust build and Schneider Electric’s reliability engineering, you gain lasting protection for high-current feeders and critical loads.

Ideal use cases

• Main protection in industrial distribution boards and switchgear where three-phase power runs at up to 750 V
• Feeder protection for large commercial facilities, manufacturing lines, and process equipment
• Retrofit and upgrade projects where proven STR-series protection is required to meet current standards

What makes the STR23SE unique

• High-current capability: 630 A rating supports substantial load centers without frequent trips
• Three-pole architecture: ensures uniform protection and disconnection across all phases
• Designed for 750 V systems: suitable for modern industrial electrical infrastructures
• Reliable Schneider Electric lineage: part of a trusted protection platform with widespread compatibility

Installation and practical considerations

Ensure the device is installed in a compatible Schneider Electric panel or enclosure designed for STR-series protection. Verify that busbar sizing, terminal torque specifications, and wiring practices align with local electrical codes. For commissioning, confirm proper trip setting behavior and perform routine inspections to maintain optimal protection performance over time.

Whether you’re protecting heavy machinery, critical process lines, or large distribution feeders, the STR23SE 630A 3-Pole 750 V Circuit Breaker provides definitive, dependable three-phase protection with a specification set you can trust for durable, long-term performance.