Siemens | QJ3M080H | Circuit Breaker | 80A | 3-Pole | 240V | Bolt-On

Meet the Siemens QJ3M080H—a dependable bolt-on circuit breaker engineered for robust protection in 3‑phase electrical setups. With an 80A rating and 240V operation, this 3‑pole device delivers precise overcurrent protection where reliability matters most—whether you’re performing maintenance, a retrofit, or a replacement in an existing panel.

Key Specifications

• Amperage: 80A
• Poles: 3‑Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part Number: QJ3M080H

Why choose the Siemens QJ3M080H

This bolt-on circuit breaker is designed for quick, secure installation in compatible Siemens panels, reducing downtime during repairs or upgrades. The 3‑pole configuration provides balanced protection across all three phases, making it a practical solution for motor circuits, feeders, and other 3‑phase loads where reliable shutdown is essential. By selecting the exact part number, you maximize compatibility and performance in systems that require the QJ3M bolt-on family.

Ideal use scenarios

• Maintenance and service work on Siemens panels that accept bolt-on breakers
• Retrofits to upgrade or replace aging 3‑phase protection in industrial or commercial equipment
• Replacement of failed breakers in retrofit projects where the QJ3M080H spec matches panel requirements

Compatibility and installation tips

• Compatibility check: The part number is the best reference for matching your panel. Confirm fit and ratings before purchasing.
• Installation best practices: Power down the system, use proper tools, and follow lockout/tagout procedures during mounting and replacement.
• Handling: Handle with clean, dry hands and avoid contact with live conductors during installation.

Practical insights and value

Choosing the QJ3M080H means leaning on Siemens’ proven design for dependable protection with straightforward maintenance. The bolt-on format minimizes panel disruption during replacement, helping you restore protective circuitry quickly. Whether you're sustaining a manufacturing line or upgrading a commercial electrical room, this 80A, 3‑pole, 240V breaker is built to perform consistently under demanding operating conditions.