Westinghouse | MA3800K | Circuit Breaker | 800A | 3-Pole | 600V | Bolt-On

The Westinghouse MA3800K circuit breaker is a rugged, bolt-on protective device designed for demanding three‑phase electrical systems. With an 800A rating, a 3‑pole configuration, and 600V operating capability, this unit delivers dependable protection for maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications

• Amperage: 800A
• Poles: 3‑Pole
• Voltage: 600V
• Mounting: Bolt-On
• Reference: Part number MA3800K is the best compatibility reference

What makes this breaker stand out

• Bolt-On mounting provides a secure, sturdy connection inside panels, minimizing movement and vibration over time.
• Three-pole design is ideal for standard 3‑phase, 600V industrial circuits, ensuring synchronized protection across all phases.
• High current capacity at 800A makes it suitable for demanding equipment loads and distribution feeders, helping to prevent nuisance trips in peak operation.
• Designed for retrofit and replacement projects, so technicians can match existing systems without extensive panel modification.

Ideal use cases

• Routine maintenance and service in commercial facilities, manufacturing floors, and data centers where reliable 3‑phase protection is required.
• Retrofit projects updating old equipment to modern 800A, 3‑pole, 600V specifications for improved safety and performance.
• Replacement installations in panels and enclosures that require a precise MA3800K form factor and rating.

Installation and compatibility tips

• Always confirm fit and ratings before ordering to ensure seamless replacement or upgrade.
• Use the MA3800K part number as the most reliable reference for compatibility with your panel or enclosure.
• Ensure your installation supports bolt-on mounting and the required three‑phase, 600V configuration.

Choose the Westinghouse MA3800K when you need a proven, purpose-built circuit breaker that aligns with precise 800A, 3‑pole, 600V specifications for robust protection and streamlined maintenance workflows.