Siemens | ETS2639 | Circuit Breaker | 100A | 480V

Siemens ETS2639 Circuit Breaker is a purpose-built protection device designed for 480V electrical systems. With a 100A rating, it’s an ideal choice for safeguarding feeders and equipment in demanding environments. This unit is specifically suited for maintenance, retrofit, and replacement projects where exact Siemens compatibility matters, helping you keep your distribution panel running smoothly without compromising safety or performance.

Key specifications

• Part number: ETS2639
• Amperage: 100A
• Voltage: 480V
• Recommended use: maintenance, retrofit, and replacement
• Compatibility note: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

Compatibility and fit you can trust

In electrical systems, matching the exact part number matters. The ETS2639 is designed to align with Siemens panels and equipment, reducing the risk of mismatches that could affect protection, performance, or warranty. Always verify the breaker’s fit against your panel’s model and the system’s 480V rating before purchasing to ensure seamless operation.

Why this Siemens breaker stands out

Unlike generic replacements, the ETS2639 is a Siemens-origin component built to integrate with your existing Siemens infrastructure. Its 100A, 480V specification provides reliable protection for key circuits, helping you maintain uptime in facilities, plants, and service environments that rely on robust electrical protection. The emphasis on the exact part number helps you avoid compatibility pitfalls common with cross-brand substitutes.

Ideal use cases

• Replacing a failed or worn-out breaker in a Siemens panel that operates at 480V
• Retrofits where upgrading or reconfiguring 100A feeders is required
• Routine maintenance replacements to preserve system protection and electrical safety

Practical tips for installation and safety

• Ensure the power to the panel is fully shut off and the area is de-energized before handling any breakers.
• Double-check the panel model and the ETS2639 against the original equipment labeling to confirm compatibility.
• Follow all applicable electrical codes and, if in doubt, consult a licensed electrician to perform the replacement.
• Handle the breaker with clean hands and avoid touching the bus connection points to prevent oxidation and ensure a solid electrical connection.