Siemens ED42B080 - 80 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens ED42B080, a dependable 80A, 480V, 2-pole bolt-on molded case circuit breaker designed to safeguard your panelboards and load centers. Engineered for enduring performance in real-world environments, this unit combines a secure bolt-on mounting with precise protective action to keep electrical systems running smoothly.

Key design advantages

• Bolt-on mounting delivers a rigid, vibration-resistant connection to the bus, reducing connection looseness and enhancing reliability in dynamic installations.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding to both overloads and short-circuit events, helping prevent damage to wiring and equipment.
• 2-pole construction ensures simultaneous protection of both hot legs, preserving balanced operation in 480V circuits.
• 80A at 480V rating is suited for mid-to-high current branch circuits common in commercial and light industrial applications.
• OEM compatibility is designed to pair with matching Siemens panels and other OEM panelboards for streamlined replacements and service upgrades.

Applications and use cases

Ideal for residential, commercial, and light industrial environments where reliable branch-circuit protection is essential. Use the ED42B080 to protect feeders and branch circuits in panelboards and load centers that require 2-pole, 480V protection with a secure bolt-on install. It’s a practical choice when upgrading or maintaining Siemens-compatible panel systems and when vibration resistance and durable construction are priorities in the installation environment.

Technical specifications

• Manufacturer: Siemens
• Part Number: ED42B080
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 80A
• Voltage Rating: 480V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose this breaker

Choosing a molded case, bolt-on breaker from Siemens means committing to a robust, long-term solution for electrical protection. The combination of a secure mounting method, a responsive thermal-magnetic trip unit, and OEM-panel compatibility translates to faster installations, easier maintenance, and confident protection tailored to 480V systems. It’s particularly well-suited for field upgrades in existing panelboards or new installations where dependable fault protection and vibration resistance are critical.

Practical tips and insights

• Ensure panelboard compatibility with Siemens ED-series breakers to maintain optimal performance and safety ratings.
• Use in applications where a reliable two-pole solution is required to protect both conductors on 480V circuits.
• When replacing or upgrading, verify that the mounting hardware and bus connection on the panel are compatible with bolt-on breakers to maintain a solid, vibration-resistant connection.