Siemens | HED41B030L | Circuit Breaker | 30A | 1-Pole | 277V

Siemens HED41B030L is a 30A, 1-Pole, 277V circuit breaker designed for reliable overcurrent protection in commercial, industrial, and select residential applications where 277V panels are used. It’s the right choice for maintenance, retrofit, and replacement projects that require precise compatibility with existing Siemens equipment. Use the part number HED41B030L as the best reference to verify fit.

Key specifications

• Amperage: 30A
• Poles: 1-Pole
• Voltage: 277V
• Part number: HED41B030L

What makes it unique

Built by Siemens, this breaker delivers a compact, single-pole form with a 30-amp trip threshold tailored for 277V circuits. It fits smoothly into panels and distributions where 277V lighting and equipment circuits prevail, offering dependable protection without altering existing hardware. For retrofit projects, it enables you to refresh aging panels while preserving safety and system integrity.

Practical use cases

• Updating a deteriorated 277V branch circuit in a commercial building’s lighting distribution
• Replacing a worn-out 1-pole breaker in a Siemens-compatible panel
• Retrofit projects that introduce 277V equipment or lighting to existing circuits
• Having a ready spare on hand to minimize downtime during maintenance

Installation notes

Before ordering, confirm fit and ratings align with your panel specifications. The HED41B030L is identified by its part number, which remains the most reliable signal for compatibility across Siemens panels and replacement schedules.