The Cummins Onan RSS200 6635 200 Amp Automatic Transfer Switch delivers high-capacity standby power management for comprehensive residential emergency backup installations. This heavy-duty power control unit monitors incoming utility power grid health continuously to automatically initialize generator startup and safely shift major electrical loads the moment utility power fails.

Engineered with a premium mechanically interlocked contactor driven by a powerful and economical solenoid, this system optimizes power delivery while remaining cost-effective. It simplifies installations and reduces installation costs significantly, featuring a user-friendly configurable front panel interface that allows operators to easily set a 12 hour exercise offset and select generator exercise cycles at repeatable intervals.

Built for maximum field survival and extended blackout resilience, this fully rated transfer switch mechanism combines long-life high-pressure silver alloy contacts that resist burning and pitting with a silver plated copper ground and neutral bus. It features solderless screw type terminals for easy external power connections, all housed inside a durable weatherproof Nema 3R Indoor/Outdoor enclosure for quiet operation.

Key Features

• Mechanically Interlocked Contactor - A powerful an economical solenoid drives the mechanism
• Silver alloy contact resists burning and pitting
• User-friendly front panel is configurable
• 12 hour exercise offset
• Selectable exercise at repeatable intervals
• Integrated, automatic 2 amp regulated charger
• Simplifies installations and reduces installation costs
• Fully rated
• Silver plated copper ground and neutral bus
• Ease of connection with solderless screw type terminals for external power connections

Specifications