Siemens | QJ3M150L | Circuit Breaker | 150A | 3-Pole | 240V

Protect your three‑phase 240V circuits with the Siemens QJ3M150L circuit breaker. Built for reliable performance in maintenance, retrofit, and replacement projects, this 150A, 3‑pole unit delivers solid, consistent protection for demanding electrical systems while matching Siemens’ legacy of safety and reliability.

Specifications at a glance

• Amperage: 150A
• Poles: 3‑Pole
• Voltage: 240V
• Part number: QJ3M150L
• Type: Circuit Breaker
• Use case: maintenance, retrofit, and replacement where exact specs are required

Why this Siemens QJ3M150L stands out

Specifically designed to protect 3‑phase 240V electrical infrastructures, the QJ3M150L pairs precise current rating with a robust three‑pole configuration. This isn’t a generic breaker—it’s a Siemens part that aligns with the exact performance characteristics your panel expects, helping maintain system safety, reliability, and continuity during servicing or upgrades.

Who will benefit

• Facilities managers and electricians performing routine maintenance on Siemens panel systems
• Technicians conducting retrofits that require an exact 150A, 3‑pole, 240V specification
• Project teams replacing aging or damaged breakers with a compatible, factory‑matched part

Use cases and practical considerations

Consider the QJ3M150L for installations or service where you need to protect complex 3‑phase loads at 240V. Before ordering, verify fit and ratings to ensure seamless compatibility with your existing panel or enclosure. The part number QJ3M150L is the most reliable reference for compatibility, reducing the risk of mismatched components during retrofit or replacement projects.

Installation and safety notes

Always confirm that the amperage, pole count, and voltage match your system requirements. Use the exact part number (QJ3M150L) as your compatibility reference to avoid mismatches. Proper installation should follow standard electrical safety practices and local codes, with the power isolated and the panel de-energized during replacement or retrofit.

Ready for your Siemens panel maintenance or upgrade? The QJ3M150L delivers dependable protection for 3‑phase, 240V circuits, backed by Siemens’ engineering precision and a clear reference point for compatibility.