Siemens | E42B100 | Circuit Breaker | 2-Pole | 480V | Bolt-On

The Siemens E42B100 2-Pole 480V Bolt-On Circuit Breaker is built for dependable protection in demanding industrial environments. Designed for maintenance, retrofit, and replacement projects, this breaker delivers precise specifications that align with existing panels and control circuits while simplifying procurement with a clear part-number reference.

Key Details

• Poles: 2-Pole
• Voltage Rating: 480V
• Mounting: Bolt-On
• Part Reference: E42B100
• Application: Suitable for maintenance, retrofit, and replacement where matching specs are required

Why this Siemens breaker stands out

• The E42B100 is the best reference for ensuring fit and ratings in your panel—important for avoiding mismatches during upgrades or repairs.
• Streamlined installation: Bolt-On mounting provides a secure, robust connection that speeds up installation and reduces vibration in high-demand environments.
• Versatile use cases: Ideal for retrofits in legacy systems, routine maintenance cycles, and straightforward replacement projects where reliable 480V protection is required.

Ideal For

• Maintenance technicians performing panel refreshes or component swaps in industrial facilities
• Electrical engineers planning retrofit projects that require exact part matching to existing Siemens gear
• Maintenance programs that prioritize quick, dependable replacements with known performance characteristics

Practical guidance for procurement and use

Before ordering, verify that the E42B100 matches your panel’s specifications and ratings. The part number is the most reliable reference for compatibility, reducing the risk of under- or over-specification during replacement. If you’re consolidating spare parts, pairing this 2-pole 480V bolt-on breaker with compatible Siemens hardware ensures consistent performance and easier future servicing.