Siemens | HED41B100L | Circuit Breaker | 100A | 1-Pole | 277V

Engineered by Siemens, the HED41B100L is a durable 100-amp, 1-pole circuit breaker designed to safeguard 277-volt circuits in commercial and industrial electrical systems. Built for maintenance, retrofit, and replacement projects, this breaker delivers reliable overcurrent protection while fitting seamlessly into panels that require exact specifications.

• Amperage: 100 A
• Poles: 1-Pole
• Voltage rating: 277 V
• Part number: HED41B100L

What sets this Siemens breaker apart

• Precise compatibility: Designed for installations that require the HED41B100L specification. Before ordering, confirm fit and ratings on the panel label—the part number is your most reliable reference for compatibility.
• Ideal for retrofits: When upgrading or replacing aging protection devices in commercial spaces with 277V circuits, this 100A, 1-pole breaker provides a straightforward, standards-aligned solution that minimizes downtime.
• Reliability in demanding environments: Built to maintain consistent performance on busy electrical systems, helping protect equipment and keep critical loads energized when they’re needed most.

Practical use cases

• Upgrading legacy 277V lighting or control circuits in offices, retail spaces, or warehouses to a dependable 100A protection point.
• Replacing a failed 1-pole device in Siemens-compatible panels where the exact part number HED41B100L is specified.
• Standardizing spare parts for maintenance teams to simplify ordering and ensure quick, accurate replacements.

Important compatibility note: The best reference for whether this breaker fits your panel is the part number and the panel’s listed ratings. For installations requiring Siemens’ HED family specifications, the HED41B100L is the appropriate choice when you need 100A at 277V with a single switch.