Cummins 100A Transfer Switch, RSS Series, 120/240V Single Phase, Service Entrance Rated, NEMA3R

$ 755.00

Cummins 100A Transfer Switch, RSS Series, 120/240V Single Phase, Service Entrance Rated - The Cummins RSS Series Transfer Switch is compatible with the RS series air-cooled generators manufactured prior to 2017. These products are Listed to UL 1008, the Standard for Transfer Switch Safety. 

The switch and generator set combination is specifically designed for a simplified, quicker installation. UL 1008 switches are suitable for standby power systems in residential and light commercial applications.  These Cummins RSS Series Transfer Switches adhere to National Electric Code (NEC) and National Fire Protection Association (NFPA) requirements.

The Cummins RSS series transfer switch is an AUTOMATIC Transfer Switch that monitors utility power 24 hours a day, 7 days a week.  When utility power becomes unsatisfactory or fails; the generator set is signaled to start, then automatically transfers the load.  When stable utility voltage returns, the transfer switch will automatically switch electrical load from the generator to the utility.  No action is required by the homeowner. The Service Entrance version of the RSS switch  is also UL 1008 Listed and makes use of a UL 489 Listed circuit breaker.

Mechanically Interlocked Contactor

  • Long-life, high pressure, silver alloy contact resists burning and pitting
  • A powerful and economical solenoid drives the mechanism

UL 489 Listed Circuit Breaker

  • Square D

Solid Bus Bar Connection

  • Between circuit breaker and transfer switch

Neutral and Ground Bar

  • Fully rated
  • Bonding jumper on neutral and ground
  • Silver plated copper ground and neutral bus

Ease of Connection

  • Solderless screw type terminals for external power connections

Choice of Service Entrance Rated and Non-Service Entrance Rated Compatible with Cummins air-cooled RS-Series air-cooled generators manufactured prior to 2017.




200 Amp


120/240V Single Phase




Service Entrance Rated


Automatic Transfer Switch

Model RSS100-6868