Cummins RA 400-(SE)-400A-240

$3,117.00

The RA Automatic Transfer Switch is integrated with the RS series genset. 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.

Cummins RA 400-(SE)-400A-240

The RA automatic transfer switch is integrated with the Quiet Connect RS series generator set. These products are listed to UL 1008 and CSA C22.2, the Standard for Transfer Switch Safety. The switch and generator set combination is specifically designed for a simplified, quicker installation. 

These UL 1008 and CSA C22.2 switches are suitable for Standby power systems in residential and light commercial applications. These RA products adhere to National Electrical Code (NEC) and National Fire Protection Association (NFPA) requirements.

 The RA transfer switch monitors utility power 24 hours a day and 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 the load from the generator to the utility. No action is required from the homeowner. 

The RA switches are also offered as service entrance rated, which are UL 1008 or CSA 22.2 certified. These service entrance rated switches utilize UL 489 listed circuit breakers.

 

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 Features and Benefits of the Cummins RA 400-(SE)-400A-240

Features

 Application
  • Utility to generator set (open transition) 
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 break Solid bus bar connection 
  •  Between circuit breaker and transfer switch 
Neutral and ground bar 
  • Fully rated
  • Bonding jumper on neutral and ground
  • Tin plated copper ground and neutral bus 
Ease of connection 
  • Solderless screw type terminals for external power connections 
Aluminium Enclosure 
  • NEMA Type 3R rated
 

Transfer Switch Mechanism

  • A powerful and economical solenoid powers RA Transfer Switches. 
  • Independent break-before-make action 
  • Mechanical interlock prevents simultaneous closing of normal and emergency contacts.
  • Electrical interlocks prevent simultaneous closing signals to normal and emergency contacts and interconnection of normal and emergency sources through the control wiring. 
  • Long-life, high pressure, silver alloy contacts resist burning and pitting. Contacts are mechanically held in both normal and emergency positions for reliable operation.
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