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A064G549 | Automatic Transfer | 200 Amp Single Phase | Non-Service Entrance | 240V System Voltage
The Cummins RA Series automatic transfer switch delivers reliable standby power for residential and light commercial applications. This unit integrates seamlessly with Cummins Quiet Connect RS series generators to ensure uninterrupted electricity during utility failures. Designed for outdoor installation, the switch features a durable aluminum enclosure that resists burning and pitting while meeting NEMA Type 3R ratings. The system adheres strictly to National Electrical Code and National Fire Protection Association requirements for maximum safety. Its simplified design allows for quicker installation compared to traditional transfer solutions. The RA switch monitors utility power continuously to trigger automatic generator startup when needed. Homeowners experience zero manual intervention as the load transfers automatically between utility and generator sources. This robust transfer switch supports 120/240V single-phase service with continuous amperage ratings up to 400A across the series. UL 1008 and CSA C22.5 listings confirm its compliance with industry safety standards. The switch utilizes UL 489 listed circuit breakers for service entrance rated versions. Solid bus bar connections ensure reliable power flow between breakers and the transfer mechanism.
Seamless Generator Integration: This switch is engineered specifically for Cummins Quiet Connect RS series generators to ensure optimal performance.
Automatic Power Restoration: The system automatically starts the generator and transfers loads when utility power fails without homeowner action.
Outdoor Durability: The aluminum enclosure meets NEMA Type 3R standards to resist environmental damage and corrosion.
Simplified Installation: The switch and generator combination is designed for a quicker and simplified installation process outdoors.
Code Compliance: Products adhere to NEC and NFPA requirements for safe operation in residential and light commercial settings.
The RA Series automatic transfer switch ensures continuous power by monitoring utility electricity 24 hours a day and 7 days a week. When the utility power fails, the switch immediately signals the connected generator set to start. It then automatically transfers the electrical load from the utility source to the generator source. Once utility voltage returns to normal levels, the switch reverses the process by switching the load back to the utility. This entire cycle requires no action from the homeowner, providing true automatic standby power. The system operates using an open transition between utility and generator to prevent source interconnection. A powerful solenoid drives the mechanism to ensure rapid and reliable contact movement during power transitions.
Continuous Utility Monitoring: The switch constantly monitors utility power availability to detect failures instantly. This 24/7 monitoring ensures the generator starts only when necessary for standby power.
Break-Before-Make Action: The mechanism features independent break-before-make action to prevent simultaneous closing of contacts. This ensures normal and emergency sources never connect through the control wiring.
Mechanical Interlock Safety: A mechanically interlocked contactor prevents simultaneous closing of normal and emergency contacts. This physical barrier guarantees safe operation during power transitions.
| Voltage Rating | 120/240VAC, Single Phase, 60 Hz |
| Amperage Rating | 100, 150, 200, 300, and 400 A continuous |
| Enclosure Type | Aluminum, NEMA Type 3R rated |
| Contact Material | Long-life, high pressure, silver alloy |
| Arc Interruption | Multiple leaf arc chutes with barriers |
| Neutral Bar | Full current-rated neutral bar standard |
| Ground Bar | Tin plated copper, fully rated with bonding jumper |
| Terminal Type | Solderless screw type for external connections |
| Auxiliary Contacts | Two contacts rated 5A at 100 Vac or 2.5A at 200 Vac |
| Breaker Type | UL 489 and/or CSA 22.5 No. 5 Listed |
Certifications: UL 1008, CSA C22.5, NEMA ICS 10, NFPA 70
Inverter Compatibility: Integrated with Cummins Quiet Connect RS series generators
Environmental: NEMA Type 3R rated for outdoor use
Warranty: 2 Year Limited including Parts & Labor
● Available | Contact us for lead time and pricing
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