Siemens ED43B035L - 35 A, 480 V, 3-Pole Circuit Breaker | AmpState

Meet the Siemens ED43B035L—a compact, reliable 3-pole molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a precise 35A rating and a 480V capacity, it’s built to guard three‑phase circuits in demanding commercial and light industrial environments while keeping installation neat and space-efficient.

Key features that matter in real-world panels

• Compact molded case design: minimizes panel footprint and improves airflow, helping you maximize available space in crowded enclosures.
• Thermal-magnetic trip unit: delivers stable, repeatable protection by combining thermal overload sensing with fast magnetic response to short circuits.
• OEM loadcenter compatibility: specifically designed to match Siemens loadcenters and panelboards, reducing fit issues and ensuring proper coordination with other protective devices.
• Three-pole protection: disconnects all three phases together in the event of a fault, safeguarding 480V systems and preventing hazardous open‑phase conditions.
• Versatile applications: suitable for residential, commercial, and light industrial use where 480V three‑phase service is present.
• Clear identification: part number ED43B035L makes ordering, stocking, and field replacements straightforward for maintenance teams.

Why this matters for your electrical protection

Choosing the Siemens ED43B035L means you’re investing in a breaker that aligns with Siemens’ engineering standards and your panel’s design. The 35A rating is ideal for protecting branch circuits feeding medium-load equipment, HVAC controls, motors, and lighting where current draw can spike. The 480V rating ensures safe operation in commercial distribution settings, while the thermal-magnetic trip provides dependable protection against both gradual overloads and sudden faults. The result is fewer nuisance trips, better coordination with upstream devices, and simpler maintenance in busy facilities.

Specifications at a glance

• Manufacturer: Siemens
• Part Number: ED43B035L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 35A
• Voltage Rating: 480V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection in panelboards/loadcenters

Ideal use cases

• Commercial spaces (retail, office, data centers) with 480V three-phase service requiring reliable motor and equipment protection.
• Light industrial panels feeding pumps, fans, conveyors, or HVAC equipment where compact breaker size helps manage enclosure space.
• New installations or retrofit projects where OEM compatibility with Siemens panelboards is a priority for seamless performance.

Practical tips for installation and optimization

• Verify panelboard compatibility: ensure the ED43B035L aligns with the existing Siemens loadcenter frame and trip characteristics for proper coordination.
• Match downstream protection: confirm downstream conductors and connected equipment are rated for 480V and compatible with a 35A protective setting.
• Follow local electrical codes and have a qualified professional perform installation and testing to ensure safe operation.

Purchase with confidence—the Siemens ED43B035L is a trusted choice for reliable, space-efficient 3-pole protection in 480V systems. Available through AmpState, this part number is your clear reference for ordering and ensuring consistent performance across your panel installations.