Siemens | E2N3R | Circuit Breaker | 100A | 3-Pole

Meet the Siemens E2N3R—a 100A, 3-Pole circuit breaker engineered for dependable protection in electrical panels. Built for maintenance, retrofit, and replacement projects where exact specifications matter, this device aligns with Siemens’ trusted E2N family. The part number E2N3R is your best reference to guarantee a precise, compatible fit.

Key specifications

• Amperage: 100A
• Poles: 3-Pole
• Part number: E2N3R

Why this Siemens circuit breaker is a smart choice

Designed for systems that require robust, reliable three-phase protection, the E2N3R provides consistent performance in demanding environments. Its 3-pole configuration makes it ideal for three-phase circuits common in commercial and light industrial panels, ensuring synchronized protection across all phases. By sticking with the E2N3R, you benefit from:

• A confirmed compatibility reference that simplifies ordering and reduces the risk of mismatches in retrofit or replacement scenarios.
• A design that supports straightforward maintenance cycles, helping minimize panel downtime.
• Brand-backed reliability from Siemens, with trip characteristics aligned to the E2N family’s standards.

Use cases and ideal applications

• Panel maintenance: replace like-for-like in service panels that require a 100A, 3-Pole breaker.
• Retrofit projects: upgrade or modernize legacy installations that were originally wired for E2N3R-compatible devices.
• Replacement in equipment: source the exact part number when a system specifies E2N3R for continuity and safety.

Compatibility and ordering guidance

Before purchasing, confirm fit and ratings are identical to your existing equipment. The E2N3R part number is the most reliable reference for compatibility, so use it to cross-check against your panel label, documentation, or installation drawings. If your project requires precise alignment with three-phase protection and a 100A rating, this breaker is built to meet those exact needs.

Installation and handling notes

For safety and optimal performance, rely on a qualified electrician to perform installation. Ensure the power is fully disconnected before servicing, and verify that the panel you’re working with supports 3-Pole breakers of the same rating. Use standard electrical practices for panel wiring and securing components, following all applicable codes and safety guidelines.

What to expect with the Siemens E2N3R 100A 3-Pole breaker

Reliable overcurrent protection for three-phase circuits, straightforward identification through the E2N3R part number, and a practical, maintenance-friendly profile that fits into compatible Siemens panels without unnecessary modification. This is the choice for professionals who value precise compatibility, clear documentation, and dependable performance in routine protection tasks.