Sylvania | SEH1C040 | Circuit Breaker | 40A | 1-Pole | 277V

Sylvania SEH1C040 is a purpose-built 40A, 1-Pole circuit breaker designed for 277V circuits in commercial and industrial electrical systems. This unit is the reliable choice for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring your panel continues to protect people and equipment with precise overcurrent protection.

Key specifications

• Amperage: 40A
• Poles: 1-Pole
• Voltage: 277V
• Part number: SEH1C040

Why this breaker matters

277V circuits are common in many commercial environments, and choosing the exact part number helps maintain correct trip characteristics, compatibility with panel bus systems, and compliance with safety standards. The Sylvania SEH1C040 is purpose-built to deliver dependable protection for these applications, reducing the risk of mismatched breakers that can lead to nuisance trips or improper protection.

Ideal use cases

• Routine maintenance on panels serving 277V circuits (lighting, HVAC feeders, equipment rooms).
• Retrofit projects where existing infrastructure requires 40A, single-pole protection without altering panel configuration.
• Replacement of aging breakers in systems that specify 277V, 1-Pole, 40A protection to maintain intended safety margins.

How to ensure a correct fit

Before ordering, confirm the panel labeling matches 277V, 40A, 1-Pole requirements. The SEH1C040 part number is the most reliable reference for compatibility with Sylvania-equipped panels and systems.

Installation and safety tips

Always shut off power and follow all applicable electrical codes during installation. Adhere to the panel manufacturer's torque and installation guidelines. When in doubt, consult a licensed electrician to ensure proper fit and safe operation.