General Electric | TEY145 | Circuit Breaker | 45A | 1-Pole | 277V | Bolt-On

General Electric’s TEY145 circuit breaker is built to protect commercial and industrial 277-volt circuits with confidence. This 45A, 1-pole unit uses a bolt-on mounting for a secure, vibration-resistant connection that stands up to demanding environments where reliability matters as much as protection.

Whether you’re performing routine maintenance, retrofitting an older panel, or replacing a failed breaker, the TEY145 offers a precise fit for single‑phase 277V circuits. Its specific amperage and mounting style are designed to complement GE panels or compatible bolt-on assemblies that require exact specifications for safe operation.

Key specifications

• Amperage: 45A
• Poles: 1-Pole
• Voltage: 277V
• Mounting: Bolt-On
• Part number: TEY145

Ideal use scenarios

• Maintenance and replacement in commercial electrical panels that require 277V single‑phase protection.
• Retrofits where exact 45A, 1-pole, bolt-on specification is needed to restore circuit protection quickly.
• Industrial or office settings with frequent panel service, where a robust bolt-on connection minimizes loosening over time.

Installation and compatibility tips

• Verify fit and ratings prior to ordering — TEY145 is the best reference for compatibility in GE and compatible bolt-on panel configurations.
• Follow standard electrical safety practices and refer to panel manufacturer guidelines when replacing breakers.
• Plan for a secure mechanical connection with proper torque and seating to ensure reliable operation and overcurrent protection.

Why choose General Electric TEY145

Choosing the TEY145 means opting for a tried-and-true GE engineering approach to overcurrent protection in 277V applications. The 1-pole design focuses protection on a single branch circuit, while the bolt-on mounting provides a sturdy, long-lasting connection that’s well-suited to busy electrical rooms and retrofit projects. This is a practical, purpose-built solution for professionals who need precise specs without compromise.