The Cummins RA112L1 100 Amp Integrated Load Center Automatic Transfer Switch provides an efficient all-in-one power management system for residential and light commercial standby applications. This heavy-duty non-service entrance switch continuously monitors utility power 24 hours a day to automatically transfer electrical loads the moment utility power fails.

Engineered for space-saving efficiency, the Cummins A051C991 combines a 20-space branch circuit breaker panel and an automatic transfer switch into a single compact housing. This intelligent configuration allows up to 24 circuits using tandem breakers and is fully compatible with Square D QO series branch circuit breakers to simplify the entire home wiring installation process.

Built with reliable protective mechanisms, this 2-Pole transfer switch features a mechanical interlock and electrical interlocks to prevent simultaneous connection of emergency and utility power sources. The switch assembly is equipped with long-life high-pressure silver-alloy contacts housed in a sturdy Steel NEMA 1 indoor enclosure for quiet and secure performance.

Key Features

• 100-Amp Integrated Power Switch and Circuit Breaker Panel
• Integrated Load Center with 20 Spaces and 24 Circuit Capability
• Compatible with Square D QO Series Branch Circuit Breakers
• Dual Mechanical and Electrical Interlock Safety Protection
• Independent Break-Before-Make Safe Transfer Action
• Burn Resistant High-Pressure Silver-Alloy Contacts
• Mechanically Held Contactor for Whisper Quiet Operation
• Simplified Single Enclosure Design for Faster Installation
• UL 1008 Listed and UL 67 Compliant for Safety Assurance
• Cummins 2-Year Limited Consumer and Commercial Warranty

Specifications