Siemens | CKL3B350 | Circuit Breaker | 350A | 3-Pole | 600V | Bolt-On

Meet the Siemens CKL3B350 Circuit Breaker—an industrial-grade, 3-pole solution built for demanding 600V systems. Identified by part number CKL3B350, this breaker is purpose-built for maintenance, retrofit, and replacement projects where exact specifications matter. The bolt-on design delivers a secure, durable connection that stands up to vibration and continuous operation in challenging environments.

• Amperage: 350 A
• Poles: 3-Pole
• Voltage rating: 600V
• Mounting: Bolt-On

Why choose the CKL3B350 for your panel?

Reliability you can count on in everyday electrical distribution. This Siemens circuit breaker is designed to fit where matching specs are required, making it an ideal replacement or upgrade component in existing switchgear or panel boards. The bolt-on mounting simplifies installation, helping technicians complete repairs or retrofits with confidence and minimal downtime.

Who benefits most

• Maintenance teams performing routine service on 600V, three-phase systems.
• Facilities upgrading old panels to improve protection and fault handling.
• Electrical engineers selecting precise, compatible parts for retrofit projects.

Practical guidance and usage tips

• Always verify fit and ratings before ordering—the CKL3B350 part number is the most reliable reference for compatibility.
• Use in applications requiring a robust 3-pole, 350 A, 600V bolt-on circuit breaker identical in make and function to your existing protection scheme.
• Confirm panel compatibility with the bolt-on mounting method and ensure adherence to local electrical codes during installation.

With the Siemens CKL3B350, you’re choosing a trusted, purpose-built solution designed to keep critical electrical systems protected and running smoothly. Whether you’re stocking spares for maintenance outages, performing a targeted retrofit, or replacing a failed unit, this 3-pole, 600V bolt-on breaker delivers precise protection where it matters most.