Siemens | EF3H150 | Circuit Breaker | 150A | 3-Pole | 600V | 14kA | Bolt-On

Meet the Siemens EF3H150 Circuit Breaker—an purpose-built, bolt-on protection solution for 3‑phase 600V electrical systems. This 150A, 3-pole unit is engineered to deliver reliable overcurrent protection in demanding industrial environments, making it an ideal choice for maintenance, retrofit, and replacement projects where exact specifications matter.

Why choose the EF3H150 for your panel?

• precise compatibility — part number EF3H150 ensures a direct fit in Siemens-compatible panels and systems that require a 150A, 3-pole, 600V breaker.
• robust protection — delivers up to 14 kA interrupting capacity, guarding circuits against faults and minimizing downtime in critical applications.
• secure mounting — bolt-on design provides a solid, vibration-resistant installation that stays put in rugged enclosures.
• streamlined maintenance — optimized for quick swaps in retrofit or replacement scenarios, reducing system downtime during updates.
• durable Siemens engineering — built to meet the demanding expectations of industrial power distribution, with dependable performance over the long term.

Ideal use cases

• Replacing a failed or worn-out breaker in 3‑phase, 600V distribution panels.
• Retrofit projects where upgrading protection or updating components requires exact EF3H150 specifications.
• New installations or panel rebuilds that demand a 150A, 3‑pole device with strong interrupting capacity.
• Systems where reliable bolt-on mounting minimizes installation time and vibration concerns.

What to verify before ordering

Note: Confirm fit and ratings for your specific panel or enclosure. The part number EF3H150 is the best reference for compatibility, ensuring you get the exact 150A, 3‑pole, 600V, 14kA device you need.

Specifications at a glance

• Amperage: 150 A
• Poles: 3‑Pole
• Voltage: 600 V
• Interrupting Capacity: 14 kA
• Mounting: Bolt-On
• Part Number: EF3H150

Whether you’re maintaining an existing installation, performing a controlled retrofit, or replacing a worn breaker, the Siemens EF3H150 delivers trusted protection with a straightforward, field-friendly bolt-on installation. It’s the precise, reliable choice for 3‑phase power distribution where every amp and every fault matters.