Generac Power Systems RXGW20SHA3 Owner'S Manual Download Page 13

Installation

Automatic Transfer Switch Owner’s Manual

9

Auxiliary Contact

See 

Figure 2-5

If desired, there is one normally-closed 

auxiliary  contact  (A)  on  the  transfer  switch  to  operate 
customer accessories, remote advisory lights, or remote 
annunciator  devices. A  suitable  power  source  must  be 
connected to common terminal. If needed, an extra auxil-
iary contact can be added. 
The  auxiliary  contact  is  normally  closed  when  transfer 
switch is in utility mode. Contacts will open when transfer 
switch is in standby mode.

NOTE: 

Auxiliary contact is rated 10 amps at 125 or 250 

volts AC, and 0.6 amps at 125 volts DC. 

Figure 2-5.  Auxiliary Contact

Fault Current Identification Label

See 

Figure 2-6

. A  Fault  Current  Identification  Label  is 

provided  in  the  bag  containing  the  unit  owner’s  manual 
and  transfer  switch  manual  operating  handle. The  2017

 

NEC requires the short-circuit current rating of the trans-
fer  equipment,  based  on  type  of  overcurrent  protective

 

device protecting transfer equipment, be field marked on 
the exterior  of the transfer equipment.  For NEC compli-
ance, verify required short-circuit current rating of trans-
fer  switch  before  installation.  The  completed  label 
provides  the  local  Authority  Having  Jurisdiction  (AHJ) 
with information they may require during inspection.
Apply  label  to  the  exterior  of  the  transfer  switch  enclo-
sure.  Use  a  pen  to  fill  in  required  information,  and  then

 

cover label with the clear protective decal.

Figure 2-6. Fault Current Identification Label

NOTE: 

The  2020  NEC  code  change  omits  this  field

 

labeling  requirement  for  one-  and  two-family  dwelling 
units.

(000134a)

CAUTION

Equipment damage. Exceeding rated voltage and 
current will damage the auxiliary contacts. Verify 
that voltage and current are within specification 
before energizing this equipment.

003626

A

004496

Summary of Contents for RXGW20SHA3

Page 1: ...el Number RXGW20SHA3 SERIAL NUMBER _________________________ DATE PURCHASED ________________________ WWW GENERAC COM 888 436 3722 Para espa ol visita http www generac com service support product suppo...

Page 2: ...ii Automatic Transfer Switch Owner s Manual 000393a WARNING CANCER AND REPRODUCTIVE HARM www P65Warnings ca gov...

Page 3: ...Manual Operation 11 Close to Utility Source Side 11 Close to Generator Source Side 12 Return to Utility Source Side 12 Voltage Checks 12 Utility Voltage Checks 12 Generator Voltage Checks 12 Generato...

Page 4: ...iv Automatic Transfer Switch Owner s Manual This page intentionally left blank...

Page 5: ...anufacturer does not spe cifically recommend verify that it is safe for others and does not render the equipment unsafe Throughout this publication and on tags and decals affixed to the unit DANGER WA...

Page 6: ...warning could result in death or serious injury WARNING 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...

Page 7: ...ements could result in death serious injury and equipment or property damage 000120 CAUTION Equipment damage Verify all conductors are tightened to the factory specified torque value Failure to do so...

Page 8: ...Safety Rules General Information 4 Automatic Transfer Switch Owner s Manual This page intentionally left blank...

Page 9: ...Install transfer switch as close as possible to electrical loads that will be connected to it Mount transfer switch vertically to a rigid supporting structure Level all mount ing points to prevent tr...

Page 10: ...Generator Power Supply Installation and interconnection diagrams are provided in this manual NOTE All installations must comply with national state and local codes It is the responsibility of the ins...

Page 11: ...used apply corrosion inhibitor to conductors After tightening terminal lugs carefully wipe away any excess corrosion inhibitor Tighten terminal lugs to required torque values as noted on decal locate...

Page 12: ...4 12V N1 N2 T1 Replace with Littlefuse 021606 3MXHP Generac 10000005117 250 vac 6 3A 23TRANSFER 1 1 1 1 2 2 2 2 J T1 N2 0 194 23A N1 004435 A Thermostat 1 B Air conditioner 1 C Thermostat 2 D Air cond...

Page 13: ...ch manual operating handle The 2017 NEC requires the short circuit current rating of the trans fer equipment based on type of overcurrent protective device protecting transfer equipment be field marke...

Page 14: ...Installation 10 Automatic Transfer Switch Owner s Manual This page intentionally left blank...

Page 15: ...g narrow slot in the inside cover The top of the movable contact carrier arm is yellow to be easily identified Manual operation handle in UP position LOAD terminals T1 T2 are connected to util ity ter...

Page 16: ...art 2 Allow generator to stabilize and warm up at no load for at least five minutes 3 Set generator s main circuit breaker CB1 to ON CLOSED 4 Verify no load voltage and frequency with an accurate AC v...

Page 17: ...when utility source power is turned off after a five second delay factory default setting After starting transfer switch should connect load circuits to standby side after a five second delay Allow sy...

Page 18: ...M 4 Verify all of the connected loads to be shed are disabled 5 After five minutes verify A C 1 is energized and Status LED A C 1 is ON 6 After another 15 seconds verify A C 2 is energized and Status...

Page 19: ...Drawings and Diagrams Automatic Transfer Switch Owner s Manual 15 Section 4 Drawings and Diagrams Installation Drawing No 10000047450...

Page 20: ...Drawings and Diagrams 16 Automatic Transfer Switch Owner s Manual Interconnection Drawing No 10000047283 Page 1 of 4 Liquid Cooled Engine Generator...

Page 21: ...Drawings and Diagrams Automatic Transfer Switch Owner s Manual 17 No 10000047283 Page 2 of 4 Liquid Cooled Engine Generator...

Page 22: ...Drawings and Diagrams 18 Automatic Transfer Switch Owner s Manual No 10000047283 Page 3 of 4 Air Cooled Engine Generator...

Page 23: ...Drawings and Diagrams Automatic Transfer Switch Owner s Manual 19 No 10000047283 Page 4 of 4 Air Cooled Engine Generator...

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Page 25: ...Drawings and Diagrams Automatic Transfer Switch Owner s Manual 21 This page intentionally left blank...

Page 26: ...Drawings and Diagrams 22 Automatic Transfer Switch Owner s Manual This page intentionally left blank...

Page 27: ......

Page 28: ...ights reserved Specifications are subject to change without notice No reproduction allowed in any form without prior written consent from Generac Power Systems Inc Generac Power Systems Inc S45 W29290...

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