Westinghouse | MA3800WK | Circuit Breaker | 800A | 3-Pole | 600V | Bolt-On

Westinghouse MA3800WK Circuit Breaker is a purpose-built, bolt-on protection device designed for demanding 3‑phase electrical systems. With an 800A rating and a 600V operating range, this breaker provides reliable overcurrent protection in industrial environments where uptime and safety matter.

What makes it stand out

• 800A rating tailored for heavy-load feeders and motor circuits common in manufacturing, data centers, and utility rooms.
• 3‑pole configuration delivers balanced, three-phase protection essential for modern industrial power distribution.
• Bolt‑on mounting for a secure, straightforward installation that reduces panel work and ensures solid electrical contact.
• 600V voltage capability suitable for typical industrial distribution networks and equipment panels.
• Clear compatibility reference with part number MA3800WK, making it easier to source the exact match for your panel.
• Compatibility note—confirm fit and ratings before ordering; the part number is the best reference for ensuring a correct match.

Who should consider this breaker?

• Facilities undergoing maintenance, retrofit, or replacement of aging or mismatched protection devices.
• Engineers and electricians sourcing a compatible 3‑pole, 600V unit for 800A feeder protection.
• Projects that require a bolt-on solution to minimize panel modification while preserving robust safety features.

Practical use cases

• Upgrading a 3‑phase distribution panel to safely handle higher load demands on production lines.
• Replacing a worn or incompatible breaker without changing the entire panel assembly.
• Retrofits where exact MA3800WK specs are required to maintain electrical protection schemes and code compliance.

How to verify compatibility

When you’re evaluating fit, use the MA3800WK as your compatibility beacon: check that your panel is designed for 3‑pole, 600V operation and that the mounting method matches bolt‑on installation. Rely on the part number as the primary reference to ensure a precise substitution.

Designed for reliability, the Westinghouse MA3800WK delivers clear, practical protection for essential equipment and distribution circuits. If you’re planning a retrofit, maintenance, or replacement project, this bolt-on 3‑pole breaker offers a straightforward path to dependable, code-compliant overcurrent protection.