Siemens ED42B090L - 90 A, 480 V, 2-Pole Circuit Breaker | AmpState

Meet the Siemens ED42B090L 90A, 480V, 2-pole molded case circuit breaker — a compact, dependable guardian for your electrical panel. Engineered for branch circuit overcurrent and short-circuit protection in panelboards and loadcenters, it keeps wiring safe while maximizing space inside the panel.

Why this 2-pole ED42B090L stands out

• Efficient panel space: a compact molded case design that fits neatly in modern panels without crowding adjacent breakers.
• Precise thermal-magnetic trip: dual sensing ensures stable, repeatable protection against overloads and instantaneous short circuits, reducing nuisance trips and wear.
• OEM-compatible: designed to work with matching Siemens OEM loadcenters and panelboards for a predictable, plug-and-play replacement experience.
• Versatile application: suitable for residential setups, commercial suites, and light industrial circuits that run on 480V systems.

Technical snapshot

• Manufacturer: Siemens
• Part number: ED42B090L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 90A
• Voltage rating: 480V
• Poles: 2
• Protection: Branch circuit overcurrent and short-circuit protection

Who needs this breaker?

Ideal for electricians and facilities managers upgrading or maintaining panelboards in commercial spaces, or updating residential service panels where a 90A, 480V 2-pole solution is required. Its 2-pole design makes it suitable for feeding 3-phase or single-phase 480V circuits, depending on your panel configuration.

Practical considerations

• Compatibility: confirm your panelboard or loadcenter accepts Siemens ED42B090L or Siemens-compatible molded case breakers to ensure a seamless fit.
• Installation: handled by licensed electricians; ensure the panel enclosure is de-energized and follow all local electrical codes during replacement or installation.
• Reliability: Siemens' thermal-magnetic trip technology provides dependable protection across a range of ambient temperatures and load conditions.

Choose the Siemens ED42B090L for a trusted, space-conscious, high-performance protection device that keeps critical circuits safeguarded in HVAC, lighting, and power distribution networks. Purchase through AmpState for authentic parts, straightforward ordering, and dependable supply chain support.