Westinghouse | NB3800S | Circuit Breaker | 800A | 3-Pole | 600V

Meet the Westinghouse NB3800S Circuit Breaker — a rugged, three-pole protection device engineered for demanding electrical setups. With an 800 A rating and a 600 V maximum, this breaker is purpose-built for maintenance, retrofit, and replacement tasks where precise specifications matter. If your goal is reliable, field-ready protection for three-phase circuits, the NB3800S delivers.

Specifications at a glance

• Amperage: 800A
• Configuration: 3-Pole (three-phase)
• Voltage: 600V
• Part number: NB3800S — the best reference for compatibility
• Best use: maintenance, retrofit, and replacement needs

Why this matters: selecting the NB3800S ensures you’re aligning with Westinghouse’s established footprint and ratings, reducing guesswork during panel upgrades. Before ordering, confirm your fit and ratings to ensure a seamless swap and uninterrupted protection for your circuits.

Ideal for professionals and exact-fit replacements

This circuit breaker is designed for projects where matching specs is essential—think service panels and load centers that require a precise NB3800S footprint. It’s especially valuable for maintenance crews performing routine replacements or retrofits on three-phase 600 V systems, where downtime is costly and compatibility is non-negotiable.

Practical notes for procurement: use the NB3800S part number as your primary reference to verify compatibility with your existing equipment. When the fit and ratings align, you gain a straightforward, dependable upgrade path that supports steady, safe operation across your critical electrical infrastructure.