Westinghouse | 505C220G23 | Circuit Breaker | 350A | 3-Pole | 600V | Bolt-On

The Westinghouse 505C220G23 circuit breaker is a purpose-built bolt-on solution designed for demanding electrical environments where reliable, code-compliant protection matters. With a 350A rating, 3-pole configuration, and a 600V rating, this unit is tailored for maintenance, retrofit, and replacement projects that require exacting compatibility and solid field performance. Its bolt-on mounting is crafted for secure, durable service in panels that support this footprint, delivering dependable protection where it counts.

• Amperage: 350 A
• Poles: 3-Pole
• Voltage: 600 V
• Mounting: Bolt-On
• Part number: 505C220G23 (best reference for compatibility)

Why this combination matters: in many industrial and commercial settings, space-constrained panels, legacy equipment, and retrofit projects demand a breaker that fits a specific footprint while delivering sturdy mechanical retention and predictable electrical performance. The 505C220G23 from Westinghouse is designed to plug into the same mounting pattern and electrical class as existing bolt-on systems, reducing installation guesswork and downtime during service windows.

Ideal use scenarios

• Maintenance and replacement in legacy panels that require a 350A, 3-pole, 600V bolt-on breaker to restore protective operations quickly.
• Retrofits where upgrading to a higher-current, three-pole protection device is needed without major panel rewiring or enclosure changes.
• New installations in equipment racks or master control panels that specify bolt-on mounting for robust, vibration-resistant performance.
• Repair projects in facilities with Westinghouse heritage components, ensuring continued compatibility with existing gear and documentation.

Key benefits and practical implications

• Direct-fit compatibility with bolt-on panels designed for this footprint, helping you avoid mismatched components and last-minute substitutions.
• Reliable overload protection tuned for 350A circuits, supporting safe operation of heavy loads such as motors, compressors, and power distribution feeders.
• Secure mechanical mounting via bolt-on construction, reducing the risk of loose connections that can lead to nuisance trips or intermittent performance.
• Clear documentation traceability with the part number 505C220G23, ensuring you’re selecting the exact model needed for retrofit or replacement projects.

Installation and safety notes you can rely on: always follow lockout/tagout procedures and de-energize equipment before service. Verify the panel’s bus configuration and confirm the breaker's ratings match the circuit you’re protecting. When mounting, use the manufacturer’s torque specifications and fastening guidelines to ensure a secure, code-compliant fit. If you’re upgrading or replacing an existing 505C-series device, the part number 505C220G23 is your most reliable reference point for compatibility.

Choosing Westinghouse for this circuit breaker means leaning on a proven design lineage focused on stability, predictable performance, and straightforward field replacement. It’s a practical, no-nonsense solution for industrial and commercial electrical systems that demand solid protection, simple maintenance, and a trusted match for legacy equipment.

Notes: Confirm fit and ratings before ordering. The part number 505C220G23 is the best reference for compatibility to ensure seamless substitution in your panel or distribution network.