Siemens HED41B050 - 50 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Siemens HED41B050 is a 50A, 277V, 1-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters.

Why this breaker stands out

• Secure bolt-on mounting: provides a rigid, vibration-resistant bus connection that stays seated even in demanding environments.
• Thermal-magnetic trip unit: delivers stable, repeatable protection across varying loads and temperatures, reducing nuisance trips.
• OEM-compatible: engineered to pair with matching Siemens OEM loadcenters and panelboards for a seamless, plug-and-protect replacement.
• Versatile application: ideal for residential, commercial, and light industrial circuits where a 277V rating is needed.
• Durable molded-case construction: built to endure frequent switching and the rigors of field service in tough installations.

Key technical details

• Manufacturer: Siemens
• Part Number: HED41B050
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 50A
• Voltage Rating: 277V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Real-world applications

• Residential panels needing a reliable 50A protection point for feeders or branch circuits within Siemens panelboards.
• Commercial spaces with 277V lighting or equipment loads requiring robust thermal-magnetic protection.
• Light industrial equipment setups where a secure bolt-on connection helps maintain a stable bus and reduces movement-related wear.

In practice, the Siemens HED41B050 delivers consistent trip performance and straightforward integration into existing Siemens ecosystems. Its bolt-on design ensures a solid, vibration-resistant connection, while the thermal-magnetic mechanism provides predictable protection across a range of operating conditions. If you’re upgrading or replacing in compatible panelboards or loadcenters, this 50A, 277V, 1-pole breaker is a dependable choice that aligns with OEM specifications and keeps your electrical protection aligned with system design.