General Electric TEF113040 40A 1-Pole 277 V Circuit Breaker

General Electric TEF113040 40A 1-Pole 277 V Circuit Breaker is a purpose-built safety device for commercial electrical systems that run on 277 VAC. Designed to protect a single hot conductor, this GE breaker delivers targeted overcurrent protection for high-demand lighting circuits, signs, and other equipment fed from 277-volt panels. Key specifications - Part number: TEF113040 - Current rating: 40 A - Poles: 1 - Voltage rating: 277 V - Series compatibility: TEF family breakers designed for GE panels that accept this style Ideal applications - Commercial lighting circuits and feeders powered by 277 VAC in offices, retail spaces, schools, and healthcare facilities - Individual branch circuits in GE panels that require reliable, single-pole 277 V protection - Replacements in existing installations where TEF-series breakers are specified by panel labeling and compatibility charts Why this GE TEF113040 stands out - Precise single-pole protection for 277 V systems: The 40 A rating matches typical high-demand lighting and equipment branches common in commercial environments, helping prevent overheating and wiring damage without nuisance trips on normal operation. - Trusted GE reliability: Built for use in professional settings, this breaker integrates with GE panels that support TEF-series devices, offering a proven track record of consistent performance in demanding environments. - Space-conscious design: The 1-pole form factor minimizes panel space usage while delivering essential overcurrent protection for a dedicated 277 V circuit. How it solves common problems - Overload protection for 277 V circuits: If circuit current exceeds 40 A, the breaker interrupts power to prevent wiring insulation damage and equipment failure. - Easy replacement in compatible panels: When upgrading or servicing 277 V lighting or equipment circuits, TEF113040 provides a straightforward, drop-in option within GE’s TEF lineup. Practical tips and considerations - Confirm panel compatibility: Use this breaker only in GE panels labeled for TEF-series breakers to ensure proper fit and functionality. - Proper installation basics: Follow standard electrical safety practices, ensure the main disconnect is off, and seat the breaker firmly into the panel bus for reliable operation. - Use case planning: For multi-circuit needs, evaluate whether additional 1-pole breakers are appropriate or if a multi-pole solution is required to balance loads across phases in your 277 V system. If you’re upgrading or maintaining a commercial electrical panel that powers 277 V circuits, the TEF113040 from General Electric provides dependable, single-pole protection with a precise 40 A limit. It’s a specialized choice for professionals aiming to protect 277-volt lighting and equipment without overburdening the panel with unnecessary complexity.