Siemens | QJ3M100L | Circuit Breaker | 3-Pole

Siemens QJ3M100L is a 3-Pole circuit breaker designed for robust protection in three-phase electrical systems. This unit is ideal for maintenance, retrofit, and replacement projects where exact spec-match matters.

Why this exact part matters: The QJ3M100L is identified by its part number, which is the most reliable reference for compatibility with Siemens equipment. Before you order, confirm fit and ratings against your panel label and the Siemens catalog to prevent mismatches that can affect safety and performance.

• 3-Pole design: Supports three-phase circuits in commercial, industrial, and service environments where a single device must interrupt all three conductors.
• Exact-match compatibility: Specifically intended for Siemens QJ-series panels and enclosures, ensuring correct mounting style and electrical fit.
• Maintenance and retrofit ready: When upgrading or replacing aging breakers, this model simplifies procurement and minimizes downtime by matching the original specification.
• Clear part identification: The QJ3M100L model number provides a straightforward reference for ordering and future service.

Ideal for: Electrical contractors performing panel retrofits, facilities teams upgrading three-phase service, and technicians replacing worn breakers in Siemens-based installations.

Tips for selecting and installing:

• Verify the panel model, circuit rating, and environment; ensure the breaker's rating matches the circuit requirements.
• Cross-check with Siemens catalogs or technical documentation using the QJ3M100L part number.
• Keep the part number on file for quick reference on future maintenance or orders.

With Siemens QJ3M100L, you gain a dependable, compatible solution that keeps your three-phase protection aligned with your system’s needs.