The Cummins RA212N3 200 Amp Non Service Entrance Automatic Transfer Switch provides comprehensive standby power management for whole house residential applications. This professional-grade system continuously monitors your utility power lines 24 hours a day, 7 days a week, automatically signaling your generator to start and shifting the electrical load the moment utility power becomes unreliable or fails.

Engineered as a high-capacity 2-Pole Switch for 120/240V Single Phase Cummins Generators, this unit integrates smoothly with Cummins Quiet Connect air-cooled standby systems. It features a reliable Break-Before-Make transition mechanism that breaks the connection to utility lines before the connection to generator power is securely established. Safe operation is reinforced by a heavy-duty mechanical interlock and electrical interlock control wiring to eliminate any risk of simultaneous source closing.

Built for maximum outdoor durability and quiet operation, the mechanical contactor features long-life high-pressure silver-alloy contacts that resist burning and pitting. The complete assembly is mechanically held in both normal and emergency positions for silent standby performance, housed entirely within a rustproof Aluminum Enclosure NEMA Type 3R Rated certified for versatile indoor or outdoor installation.

Key Features

• Cummins RA212N3 200-Amp Whole House Automatic Transfer Switch
• 2-Pole Switch for 120/240V Single Phase Cummins Generators
• Break-Before-Make Isolates Generator Power from Utility Power
• Mechanical Interlock Prevents Simutaneous Closing of Emergency and Normal Contacts
• Electrical Interlock Control Wiring Prevents Simutaneous Connection to Emergency and Normal Power Sources
• Long-life high-pressure silver-alloy contacts resist burning and pitting
• Mechanically held contacts in normal and emergency positions for quiet operation
• Aluminum Enclosure NEMA Type 3R Rated for Indoor/Outdoor Installation
• Cummins 2-Year Limited Warranty

Specifications