Eaton QA-B-0833-S Switch, 800A, 3-Pole, 480V

The Eaton QA-B-0833-S switch is a rugged, high-current disconnect designed for industrial electrical service, maintenance, and replacement projects. With an 800 A capacity, a 3-pole configuration, and 480 V operation, this switch provides dependable isolation for demanding three‑phase power systems. Verify fit by part number QA-B-0833-S against your application requirements.

Key features that matter in the field

• 800 A current rating supports large motors and heavy loads without frequent upsizing.
• 3-pole design provides complete three-phase isolation for safer maintenance and system protection.
• 480 V operation aligns with common industrial power distribution setups.
• Part-number-driven compatibility and clear documentation help you confirm the right fit for your equipment.

Ideal use cases

• New installations in manufacturing, processing, and heavy industry where a robust disconnect is required.
• Replacement of aging switches in service panels and switchgear assemblies that serve high-current circuits.
• Maintenance outages where reliable isolation minimizes downtime and safety risks.

Why choose this Eaton switch over alternatives

• Backed by Eaton's engineering and manufacturing standards, delivering consistent performance under demanding loads.
• Designed to integrate with Eaton-powered systems and compatible switchgear, helping streamline procurement and replacements.

Practical guidance for selection and installation

• Confirm exact fit by matching part number QA-B-0833-S to your catalog and ensuring the current (800 A), poles (3), and voltage (480 V) meet your system requirements.
• Review mounting, enclosure, and termination interfaces to ensure proper physical compatibility with your panel or switchgear.
• Work with a qualified electrical professional to install and maintain the switch according to relevant codes and safety practices.

Need help verifying compatibility?

Notes: Verify fit by part number and application requirements. If you need assistance matching a part number or confirming compatibility, message us and we'll help.