Siemens | QJ3M100H | Circuit Breaker | 100A | 3-Pole | 240V | Bolt-On

Meet the Siemens QJ3M100H, a purpose-built circuit breaker that delivers dependable overcurrent protection for three‑phase 240V systems. At 100A with a 3‑pole configuration, this bolt‑on breaker is engineered for fast, secure installation in compatible Siemens panels, making it a trusted choice for both new builds and retrofit projects.

Why engineers and electricians choose the QJ3M100H

• Precisely matched specs—100A, 3‑pole, 240V design tailored for three‑phase circuits, ensuring consistent protection where you need it most.
• Bolt‑on mounting—a streamlined installation approach that delivers solid mechanical hold and reliable electrical contact in panels designed for bolt‑on breakers.
• Compatibility reference—part number QJ3M100H is your strongest guide for finding the right fit in Siemens equipment and replacement scenarios.
• Versatile for service projects—ideal for maintenance, retrofit, and replacement work where matching ratings and pole count are essential.

Ideal use cases

• Upgrading or refurbishing a three‑phase distribution panel to meet newer electrical loads.
• Replacing a failed 100A, three‑pole device in industrial or commercial environments.
• Retrofitting panels to align with updated safety standards or load profiles without overhauling the entire electrical system.

Important compatibility notes

Before ordering, verify fit and ratings on the receiving panel. The QJ3M100H part number is the most reliable reference to confirm compatibility with your Siemens panel and mounting style.

Key specifications at a glance

• 100 A
• Poles: 3‑Pole
• Voltage: 240 V
• Mounting: Bolt‑On
• Part number: QJ3M100H

Designed for professionals who demand precise protection, straightforward installation, and dependable performance in 3‑phase electrical systems, the Siemens QJ3M100H is a robust choice for safeguarding equipment and sustaining uptime in demanding environments.