General Electric TEY250ST12 50A 2-Pole 277 V Circuit Breaker

General Electric TEY250ST12 50A 2-Pole 277 V Circuit Breaker is a robust overcurrent protection device designed for commercial electrical systems. With a 50-amp rating and a two-pole configuration, it provides reliable interruption of current on overload or short-circuit events for 277-volt circuits, helping to safeguard wiring, panels, and connected equipment.

Key specifications and features

• Model and rating: TEY250ST12, 50 A current rating, 2 poles, 277 V
• Two-pole design: Simultaneous disconnection of both hot legs for enhanced safety and code-compliant protection
• Voltage suitability: Optimized for 277 V commercial distribution environments, common in office, retail, and institutional buildings
• Series lineage: Part of GE's TEY family, engineered for dependable performance in compatible panels and enclosures
• Replacement convenience: Precise part number TEY250ST12 makes retrofits and replacements straightforward in appropriate GE systems

Ideal use cases

• 277 V lighting and power feeders in commercial buildings, such as office complexes, schools, and retail centers
• Motor and equipment circuits for HVAC fans, pumps, and controllers where a 50 A, 2-pole protection is appropriate
• Retrofits or new installations in GE-compatible distribution panels that require TEY-series breakers
• Situations where shutting off both hot legs simultaneously minimizes shock risk and arc flash potential

Why this GE TEY250ST12 stands out

Unlike generic breakers, this TEY250ST12 is purpose-built for GE TEY-panel ecosystems, delivering consistent trip performance and reliable protection specifically designed for 277 V commercial applications. The 2-pole configuration ensures coordinated disconnection across both conductors, which is essential for safely protecting 277 V circuits that power lighting, HVAC, and other critical equipment.

Practical considerations and best practices

• Verify that your electrical system and panel are designed to accept TEY-type breakers and are rated for 277 V operation
• Schedule installation or replacement with a licensed electrician to ensure proper torque on terminals and compliance with local electrical codes
• Use as part of a comprehensive protection strategy that matches circuit loads, wiring gauge, and panel ratings
• Keep a spare TEY250ST12 on hand for timely replacements in preventive maintenance programs

The General Electric TEY250ST12 50A 2-Pole 277 V Circuit Breaker delivers precise, dependable overcurrent protection for commercial electrical infrastructure. Its 50-amp, two-pole design and 277-volt rating address the specific demands of non-residential power distribution, helping you maintain safety, reliability, and uptime across your building systems.