Siemens HED41B030L - 30 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState

The Siemens HED41B030L is a 30A, 277V, 1-pole bolt-on molded-case circuit breaker engineered to protect branch circuits with precision in panelboards and load centers. Designed for reliability across residential, commercial, and light industrial environments, this breaker combines robust construction with smart protection features that keep electrical systems safe and running smoothly.

Why this breaker stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing the risk of loose connections in panels subject to movement or vibration.
• Thermal-magnetic trip unit delivers stable, repeatable protection for both overcurrent and short-circuit conditions, adapting to temperature changes while minimizing nuisance trips.
• 277V compatibility makes it ideal for commercial lighting circuits and other 277V feeders, expanding its use beyond standard 120V systems.
• 1-pole design serves single-phase circuits efficiently, making it well-suited for branch circuits in small to mid-size installations.
• OEM load center compatibility ensures straightforward replacement or retrofit with matching Siemens hardware, reducing setup time and complexity.

Technical specifications

• Manufacturer: Siemens
• Part number: HED41B030L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 30 A
• Voltage rating: 277 V
• Number of poles: 1
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal applications and use cases

• New panel installations in offices, retail spaces, and light commercial facilities that run 277V lighting or feeders
• Retrofits in existing panelboards where a robust, vibration-resistant connection is required
• Small to mid-size industrial control panels needing dependable single-pole protection with precise trip characteristics

With the Siemens HED41B030L, you’re choosing a breaker that prioritizes dependable protection, straightforward installation, and compatibility with the broader Siemens load-center ecosystem. It’s a practical, purpose-built solution for protecting critical circuits while maintaining panel reliability and performance.