Siemens ED41B020 - 20 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

The Siemens ED41B020 is a 20A, 120V, single-pole bolt-on molded case circuit breaker designed for dependable branch circuit protection in panelboards and load centers. It delivers consistent, fast response to overcurrent and short-circuit events, helping keep wiring, devices, and occupants safe while minimizing nuisance trips in everyday electrical layouts. < h2>Why this breaker stands out (Note: This line is not intended to appear; it’s for structure.) - Secure bolt-on mounting: A rigid bus connection that stays put through normal operation and vibrations, reducing connection looseness over time. - Thermal-magnetic trip unit: Combines thermal and magnetic actuation for stable, repeatable protection across a range of fault conditions, so you’re protected whether a light inrush or a short takes a hit. - OEM-loadcenter compatibility: Engineered to drop into matching Siemens load centers and panelboards, simplifying replacement or upgrades without compatibility surprises. - Versatile for multiple environments: Suitable for residential, commercial, and light industrial applications where reliable circuit protection is essential. < h2>Key features

• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 20A
• Voltage rating: 120V
• Number of poles: 1
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

< h2>Where and how you’ll use it

Ideal for residential panels where a dedicated, reliable 20-amp single-pole protection is needed for lighting circuits, receptacle branches, or dedicated appliances. In commercial and light industrial settings, it serves as a dependable protection point in panelboards and distributed load centers, where robust mounting and consistent trip behavior matter under constant use and occasional surges.

< h2>Why it solves real problems

• Minimizes vibration-related wear: The bolt-on design ensures a solid, vibration-resistant connection that remains secure in busy electrical environments.
• Predictable protection: The thermal-magnetic trip unit provides repeatable, accurate trips for both sustained overloads and sharp short-circuit events, reducing downtime and equipment risk.
• Seamless upgrades and maintenance: OEM compatibility means easier replacements and streamlined maintenance in Siemens-based systems, avoiding fit issues or the need for adapters.

< h2>Technical snapshot

• Manufacturer: Siemens
• Part Number: ED41B020
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20A
• Voltage Rating: 120V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

< h2>Practical tips for best results

Plan for a straightforward swap by matching the ED41B020 with your existing Siemens load center or panelboard. Ensure the replacement is a like-for-like 1-pole, 120V unit with bolt-on mounting to maintain a secure connection and expected trip performance. Regularly inspect panel connections during routine maintenance to preserve protection reliability and minimize unexpected trips.