Siemens ED42B030L - 30 A, 480 V, 2-Pole Circuit Breaker | AmpState

Meet the Siemens ED42B030L, a 30A, 480V, 2-pole molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. This unit is built to pair seamlessly with matching OEM panels, ensuring consistent performance and straightforward replacement in ongoing electrical maintenance.

Designed with space efficiency and dependable protection in mind, the ED42B030L features a compact molded-case design that helps maximize panel footprint without compromising protection. Its thermal-magnetic trip unit provides stable, repeatable response to both overloads and short circuits, helping to prevent nuisance trips while safeguarding your wiring and equipment across varying loads and temperatures.

• Compact molded-case design minimizes panel depth and optimizes space inside panelboards and loadcenters.
• Thermal-magnetic trip unit delivers reliable, repeatable protection against both overloads and short-circuit conditions.
• OEM-compatible designed to be used with matching Siemens OEM loadcenters and panelboards for straightforward installation and dependable performance.
• Versatile application suitable for residential, commercial, and light industrial circuits that require robust 2-pole protection at 480V.

Technical specifications

• Manufacturer: Siemens
• Part Number: ED42B030L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30 A
• Voltage Rating: 480 V
• Number of Poles: 2
• Application: Branch circuit overcurrent and short-circuit protection

Why this matters for you

If you’re upgrading or stocking maintenance stock for panels, the Siemens ED42B030L offers precise, dependable protection for 480V circuits without resizing or reconfiguring existing panel layouts. The two-pole design ensures simultaneous disconnection of both lines during a fault, enhancing safety and helping meet standard electrical protection requirements in commercial and light industrial environments.

Ideal use scenarios include replacing worn or outdated breakers in OEM panelboards, outfitting new installations in light commercial spaces, or protecting critical circuits in small industrial setups where 480V feeders are present. Its compatibility with Siemens OEM panels means faster installs, fewer compatibility surprises, and a clearer path to code-compliant protection.

For best results, confirm that your panelboard or load center is designed for 480V, 2-pole protection and that the ED42B030L’s 30A rating aligns with the circuit it’s protecting. When configured correctly, this breaker delivers dependable protection, predictable trip behavior, and long-term reliability in demanding electrical environments.

Ready to upgrade or standardize your panel protection with a trusted name in electrical safety? The Siemens ED42B030L (AmpState listing) provides a concrete, field-proven solution for robust branch circuit protection at 480V.