Siemens | CK3B100 | Circuit Breaker | 100A | 3-Pole | 600V | Bolt-On

The Siemens CK3B100 is a robust 100 A, 3-pole circuit breaker designed for 600 V systems, featuring a bolt-on mounting for secure, field-ready installation. Built for maintenance, retrofit, and replacement projects, this unit helps protect essential equipment while enabling straightforward panel upgrades without compromising electrical safety.

Key specifications at a glance

• Amperage: 100 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Mounting: Bolt-On
• Part reference: CK3B100

Why this 3-Pole bolt-on breaker stands out

Designed to trip all three poles in unison, the CK3B100 provides coordinated protection for 3-phase circuits, reducing the risk of unbalanced loads and electrical faults. The bolt-on mounting delivers a secure, vibration-resistant attachment that supports reliable long-term operation in demanding environments.

Ideal use cases

• Industrial control panels requiring dependable 3-phase protection for motors and feeders
• Retrofit projects where existing gear needs matching 100 A, 3-Pole, 600 V specifications
• Replacement of aging or worn breakers in commercial/distribution panels
• Maintenance shut-downs or scheduled upgrades that minimize downtime

Practical notes for selection and installation

Always confirm fit and ratings before ordering. The CK3B100 part number is your best reference for compatibility with Siemens panels and bolt-on enclosures. Ensure your system operates at or below 600 V and that the panel enclosure supports a 3-Pole bolt-on configuration. Proper alignment of contacts and secure mounting are essential for optimal performance and safety.

What you’ll achieve

With the Siemens CK3B100, you gain a dependable, precisely-rated protective device tailored for 600 V, 3-phase environments. It simplifies upgrades, accelerates maintenance cycles, and provides clear, coordinated protection for critical machinery and distribution circuits—helping you keep operations safe, compliant, and running smoothly.