Siemens | ED42B020L | Circuit Breaker | 2-Pole | 480V

Siemens ED42B020L is a robust 2-pole circuit breaker designed to protect 480V electrical circuits in demanding environments. Built for maintenance, retrofit, and replacement tasks where exact specifications matter, this unit helps keep power distribution safe and reliable without sacrificing performance.

• Exact compatibility reference — The part number ED42B020L is the best guide for matching this breaker to your Siemens panels and systems.
• Voltage rating — Rated for 480V operation, making it suitable for industrial and commercial distribution setups that require high-voltage protection.
• Intended use — Ideal for maintenance, retrofit, and replacement scenarios where matching specs are essential to maintain system integrity.
• Fit-and-verify approach — Confirm the breaker’s fit and ratings before ordering to ensure seamless integration with existing hardware.

Practical use cases

This 2-pole 480V Siemens breaker is well-suited for upgrading or maintaining electrical systems that rely on precise, compatible protection devices. Use it when you're:

• Replacing a worn or obsolete breaker that matches the ED42B020L specifications
• Performing a retrofit to align with Siemens ED-series components
• Maintaining uptime in commercial or light-industrial distributions where 480V protection is required

How to ensure you’re getting the right part

To avoid mismatches, always cross-check the part number ED42B020L against your panel labeling and manufacturer documentation. Remember to verify the voltage rating and pole configuration (2-pole) match your current installation before purchase.

Why choose Siemens for this application

Siemens is known for reliable protection devices that align with standard industrial practices. The ED42B020L 2-pole, 480V design provides a dependable solution for ensuring safe shutdown, overcurrent protection, and consistent performance in demanding environments. When your goal is precise compatibility and durable protection, this breaker delivers the fit you need with the assurance that comes from a trusted, widely-used electrical supplier.