Owner’s Manual

1 Owner s ManualForAutomatic Transfer Switch100 - 200 Amp, Three Phase, Service EntranceMODEL NUMBER: SERIAL NUMBER: _____DATE PURCHASED:_____Register your Generac product (888-436-3722)SAVE THIS Manual FOR FUTURE REFERENCE Para espa ol, visita: NumbersRTSW100G3 RTSW100J3 RTSW100K3 RTSW200G3 RTSW200J3 RTSW200K3iiAutomatic Transfer Switch Owner s Manual (000393a)WARNINGCANCER AND REPRODUCTIVE Automatic Transfer Switch Owner s ManualiiiTable of ContentsSection 1: Introduction and SafetyIntroduction ..1 Read This Manual Thoroughly ..1 Safety Rules ..1 Electrical Hazards ..2 General Hazards ..3 section 2: General InformationIntroduction ..5 Unpacking ..5 Equipment Description ..5 Transfer Switch Mechanism ..5 Utility Service Circuit Breaker ..6 Transfer Switch Data Decal ..6 Transfer Switch Enclosure ..6 Safe Use of Transfer Switch ..6 section 3: InstallationIntroduction to Installation ..7 Mounting ..7 Connecting Power Source and Load Lines.

2 7 Connecting Start Circuit Wires ..8 Auxiliary Contacts ..8 section 4: OperationFunctional Tests and Adjustments ..9 Manual Operation ..9 Close to Standby Source Side ..9 Return to Normal Source Side ..9 Voltage Checks ..10 Utility Voltage Checks ..10 Generator Voltage Checks ..10 Generator Tests Under Load ..11 Checking Automatic Operation ..11 Installation Summary ..11 Shutting Generator Down While Under Load .. 12 section 5: Drawings and DiagramsInstallation Drawing 100-200 A Three Phase .. 13 Interconnection Drawing 100- 200a RTS Series Three Phase ..14 Interconnection Drawing 100- 200a RTS Series Three Phase ..15 Schematic Diagram 100- 200a 240 VAC ..16 Wiring Diagram 100- 200a 240 VAC ..17 Schematic Diagram 100- 200a 240 VAC ..18 Wiring Diagram 100- 200a 240 VAC ..19 Schematic Diagram 100- 200a 240 VAC ..20 Schematic Diagram 100- 200a 240 VAC ..21iv50A Automatic Transfer Switch Owner s ManualThis page intentionally left and SafetyAutomatic Transfer Switch Owner s Manual1 section 1: Introduction and SafetyIntroductionThank you for purchasing a Generac Power Systems This unit has been designed to provide highperformance, efficient operation, and years of use whenmaintained properly.

3 Read This Manual ThoroughlyIf any section of this Manual is not understood, contactthe nearest Independent Authorized Service Dealer(IASD) or Generac Customer Service at 1-888-436-3722(1-888-GENERAC), or visit for start-ing, operating, and servicing procedures. The owner isresponsible for proper maintenance and safe use of THESE INSTRUCTIONS for future reference. Thismanual contains important instructions that must be fol-lowed during placement, operation, and maintenance ofthe unit and its components. Always supply this manualto any individual that will use this unit, and instruct themon how to correctly start, operate, and stop the unit incase of RulesThe manufacturer cannot anticipate every possiblecircumstance that might involve a hazard. The alerts inthis Manual , and on tags and decals affixed to the unit,are not all inclusive. If using a procedure, work method,or operating technique that the manufacturer does notspecifically recommend, verify that it is safe for othersand does not render the equipment this publication, and on tags and decalsaffixed to the unit, DANGER, WARNING, CAUTION, andNOTE blocks are used to alert personnel to specialinstructions about a particular operation that may behazardous if performed incorrectly or carelessly.

4 Observethem carefully. Alert definitions are as follows:NOTE: Notes contain additional information important toa procedure and will be found within the regular text ofthis safety alerts cannot eliminate the hazards thatthey indicate. Common sense and strict compliance withthe special instructions while performing the action orservice are essential to preventing accidents.(000100a)Consult Manual . Read and understand manualcompletely before using product. Failure to completely understand Manual and product could result in death or serious (000001)DANGERI ndicates a hazardous situation which, if not avoided, will result in death or serious injury.(000002)WARNINGI ndicates a hazardous situation which, if not avoided,could result in death or serious injury.(000003)CAUTIONI ndicates a hazardous situation which, if not avoided,could result in minor or moderate and Safety2 Automatic Transfer Switch Owner s ManualElectrical Hazards(000129)DANGERE lectrocution. High voltage is present at transfer switch and terminals.

5 Contact with live terminals will result in death or serious injury.(000104)DANGERE lectrocution. Water contact with a power source, if not avoided, will result in death or serious injury.(000145)DANGERE lectrocution. In the event of electrical accident, immediately shut power OFF. Use non-conductive implements to free victim from live conductor. Apply first aid and get medical help. Failure to do so will result in death or serious injury.(000237)DANGERE lectrical backfeed. Use only approved switchgear to isolate generator from the normal power to do so will result in death, serious injury, and equipment , equipment and property damage. Handle transfer switches carefully when installing. Never install a damaged transfer switch. Doing so could result in death or serious injury, equipment and property damage.(000195)DANGER(000123)DANGERE lectrocution. Turn utility supply OFF before working on utility connections of the transfer switch. Failure to do so will result in death or serious injury.

6 (000157)DANGERE lectrocution. Do not disable or modify theconnection box door safety switch. Doing sowill result in death or serious injury.(000191)DANGERA utomatic start-up. Disconnect utility power and render unit inoperable before working on unit. Failure to do so will result in death or serious injury.(000119)DANGERE quipment malfunction. Installing a dirty or damagedtransfer switch will cause equipment malfunction and will result in death or serious injury.(000155a)WARNINGE lectric shock. Only a trained and licensed electrician should perform wiring and connections to unit. Failure to follow proper installation requirements could result in death, serious injury, and equipment or property damage.(000120)Equipment damage. Verify all conductors are tightened to the factory specified torque value. Failure to do so could result in damage to the switch (000121)Equipment damage. Perform functional tests in the exact order they are presented in the Manual . Failure to do so could result in equipment (000134a)CAUTIONE quipment damage.

7 Exceeding rated voltage and current will damage the auxiliary contacts. Verify that voltage and current are within specification before energizing this and SafetyAutomatic Transfer Switch Owner s Manual3 General Hazards Competent, qualified personnel should install,operate and service this equipment. Adhere strictlyto local, state and national electrical and buildingcodes. When using this equipment, comply withregulations established by the National ElectricalCode (NEC), CSA Standard; CanadianElectric Code, the Occupational Safety and HealthAdministration (OSHA), or the local agency forworkplace health and safety. If working on this equipment while standing onmetal or concrete, place insulative mats over a drywood platform. Work on this equipment only whilestanding on such insulative mats. Never work on this equipment while physically ormentally fatigued. Any voltage measurements should be performedwith a meter that meets UL3111 safety standards,and meets or exceeds overvoltage class CAT III.

8 (000237)DANGERE lectrical backfeed. Use only approved switchgear to isolate generator from the normal power to do so will result in death, serious injury, and equipment damage.(000129)DANGERE lectrocution. High voltage is present at transfer switch and terminals. Contact with live terminals will result in death or serious injury.(000123)DANGERE lectrocution. Turn utility supply OFF before working on utility connections of the transfer switch. Failure to do so will result in death or serious injury.(000104)DANGERE lectrocution. Water contact with a power source, if not avoided, will result in death or serious injury.(000188)DANGERE lectrocution. Do not wear jewelry while working on this equipment. Doing so will result in death or serious injury.(000213)DANGERE lectrocution. Only authorized personnel shouldaccess transfer switch interior. Transfer switch doors should be kept closed and locked. Failure to do so will result in death or serious injury.(000191)DANGERA utomatic start-up.

9 Disconnect utility power and render unit inoperable before working on unit. Failure to do so will result in death or serious injury.(000145)DANGERE lectrocution. In the event of electrical accident, immediately shut power OFF. Use non-conductive implements to free victim from live conductor. Apply first aid and get medical help. Failure to do so will result in death or serious injury.(000209b)WARNINGLoss of life. This product is not intended to be used in a critical life support application. Failure to adhere to this warning could result in death or serious injury.(000247a)Equipment damage. This unit is not intended for use as a prime power source. It is intended for use as an intermediate power supply in the event of temporary power outage only. Doing so could result in death, serious injury, and equipment of injury. Do not operate or service this machine if not fully alert. Fatigue can impair the ability to operate or service this equipment and could result in death or serious injury.

10 (000215a)WARNINGI ntroduction and Safety4 Automatic Transfer Switch Owner s ManualThis page intentionally left InformationAutomatic Transfer Switch Owner s Manual5 section 2: General InformationIntroductionThank you for purchasing a Generac transfer switch. Thismanual has been prepared especially for the purpose offamiliarizing personnel with the design, application,installation, operation, and servicing of the applicableequipment. Read this Manual carefully and comply withall instructions. This will help to prevent accidents ordamage to equipment that might otherwise be caused bycarelessness, incorrect application, or effort has been expended to make sure that thecontents of this Manual are both accurate and manufacturer, however, reserves the right to change,alter or otherwise improve the product or Manual at anytime without prior unpack the transfer switch. Inspect closely forany damage that might have occurred during purchaser must file with the carrier any claims forloss or damage incurred while in transit.