Siemens | QJ3M110H | Circuit Breaker | 110A | 3-Pole | 240V | Bolt-On

Meet the Siemens QJ3M110H Circuit Breaker — a precise, bolt-on protective device designed for demanding 3‑pole, 240V circuits. With a 110A rating, this breaker delivers reliable overcurrent protection for maintenance, retrofit, and replacement projects where exact specifications matter.

• Amperage: 110A
• Poles: 3‑Pole
• Voltage: 240V
• Mounting: Bolt-On

Why this matters — The bolt-on design provides a robust, secure connection to your bus assembly, reducing the risk of loose connections under load. The 3‑pole configuration ensures synchronized protection across all three phases, which is essential for motor circuits, pumps, and other equipment that rely on balanced phase protection.

Ideal use cases

• Maintenance and retrofit projects in Siemens panel systems requiring 110A, 3‑pole, 240V protection
• Replacement for a failed or mismatched breaker in three‑phase electrical panels
• Upgrading motor drives, HVAC equipment, and manufacturing line equipment to a consistent protection class
• New installations that demand a precise part number for compatibility and reliability

Installation and compatibility tips

Before ordering, confirm fit and ratings: the part number QJ3M110H is the most reliable reference for compatibility. When installing, ensure the system is de‑energized and follow standard bolt‑on mounting procedures to secure the breaker firmly to the panel’s bus connection. If you’re replacing a prior bolt‑on unit, aim to preserve the same mounting footprint to simplify installation and maintain panel integrity.

What makes it stand out

Designed for real-world industrial environments, the Siemens QJ3M110H delivers dependable three‑phase protection with a straightforward bolt‑on mounting approach. Its exact match to Siemens panel ecosystems helps minimize downtime and ensures consistent electrical protection across your equipment. Rely on a trusted part number to guarantee compatibility and performance in critical applications.