Siemens HED41B100 100A 1P 277V Circuit Breaker, Bolt-On | AmpState

Inspired by the Siemens HED41B100 100A 1P 277V Circuit Breaker, Bolt-On, this device is built for everyday electrical work and dependable circuit protection in panelboards, load centers, and electrical distribution. The bolt-on design is purpose-made for Retrofit projects and maintenance planning where keeping the exact part number matters, delivering a reliable upgrade without unnecessary disruptions.

Key specifications at a glance

• Amperage: 100 A
• Poles: 1 Pole
• Voltage: 277 V
• Mounting: Bolt-On
• Manufacturer: Siemens
• Part Number: HED41B100
• Typical Applications: Panelboards, Load Centers, Electrical Distribution

Why this breaker stands out for retrofit and maintenance

For facilities and projects that require consistent parts across panels, the HED41B100 offers a precise fit with Siemens reliability. Its 1-pole, 100 A rating is ideal for protecting individual circuits in commercial lighting, HVAC controls, and other mid-current applications that operate at 277 volts. The bolt-on mounting simplifies installation in compatible enclosure footprints, helping technicians execute replacements quickly and with fewer site visits.

Who should consider this breaker

• Electrical contractors performing panel upgrades or retrofits where the part number must remain unchanged
• Facilities teams maintaining distribution reliability in commercial environments
• Service technicians seeking a dependable, Siemens-branded bolt-on solution for 277V circuits

Practical usage and installation insights

Plan replacements during scheduled maintenance windows to minimize downtime. Verify your panelboard or load center accepts a bolt-on 1P 277V breaker of the Siemens HED41B100 family, and confirm mounting compatibility before swapping units. If you’re unsure about fit, AmpState offers support to help confirm compatibility and ensure you’re selecting the exact part number for your system.

In real-world use, this breaker delivers consistent protection for critical loads while keeping maintenance logistics streamlined. Its solid construction and Siemens engineering mean fewer surprises during installation and reliable performance once in service.

Ready to upgrade or stock your maintenance inventory? Add the Siemens HED41B100 100A 1P 277V Circuit Breaker, Bolt-On, from AmpState to your cart and rely on a trusted solution designed for durability and straightforward retrofit work.