Generac Power Systems Nexus smart Technical Manual Download Page 22

0D7294 

XFER SW-W 400A600V2P  

0A7822 

LUG,  SLDLS S 600/250-1/0X1/4-28 

026902 

SCREW TAPTITE  #8-32X1/ 4 BP 

0C7907J 

COVER LUG  2P 400AMP 

024526 

SCREW HHTT 5/16-18 X 3/4 CZ 

057329 

LUG,  SOLDERLESS 350-#6X13/32 AL/CU 

027482 

WASHER SHAKEPROOF EXT  5/16 STEEL 

022097 

15 

WASHER LOCK M6-1/4 

0C8275 

SCREW PPHM DSEMS M4-.7 X 10 ZNC 

(1)10 

0D2572 

FUSEBLO CK 30A 600V 3POS  W/SQ 

11 

090388 

SCREW TAPTITE M6-1. 0 X  12  MM 

12 

0A1495 

SCREW TAPTITE M4-.7 X 10 MM 

(1)13 

063617 

RELAY PNL  12VDC DPDT 10A@240VA 

14 

047411 

SCREW HHC  M6-1.0 X 16 G8.8  

15 

0A1661 

RIVET, P OP 

16 

0F4034 

ASSY.  NEUTRAL  BLOCK 300/400A 

17 

0F59350ST14 

 ENCLOSURE RTS  3R 24X36X10 GY4  

18 

0F59390ST14 

 COVER, NEMA 3R T/S ENCL GY 4 

19 

0G3259 

DECAL TERMINAL SHOCK HZD BI 

20 

0H7917 

DECAL TERMINAL STRIP 

21 

0F6165 

WASHER, NYLON 

22 

0G5968C 

DECAL DATA XFER SW 

 

0H8062C 

DECAL DATA XFER SW 

 

0J3806C 

DECAL DATA XFER SW 

23 

064101 

NUT HEX  FL WHIZ 3/8-16  

24 

0F59400ST14 

 SUBPLATE  24/ 36 ENCL RTS GY 4  

25 

087680 

NUT WING M6-1.0 

26 

063378 

HOLDER CABLE  TI E 

27 

064761 

TIE WRAP UL 5.6" X  .10"  NATL 

28 

063321 

HANDLE  TRANSFER SWITCH 1-400A 

29 

073590A 

FUSE 5A X BS S HLDR73591 

30 

0D3587 

DECAL,FUSE REPLACEMENT 

31 

067210A 

DECAL GROUND LUG 

32 

0A9457 

DECAL NEUTRAL 

33 

0D4545 

DECAL MANUAL  OPERATIO N 

34 

0F6129 

DECAL, TES T SEQUENCE 

35 

081221 

DECAL, UL NAMEPLATE 

36 

0A8261 

12 

SCREW, HHCS 1/ 4-28 X 5/8" 

37 

022473 

12 

WASHER, FLAT 1/4-6M ZINC 

(1)38 

0H1605 

BLO CK TERM 20A 5 X 6 X 1100V  

39 

PER ORDER 

DECAL, FRNT CVR ATS 3R NON 

40 

022129 

WASHER LOCK M8-5/16 

41 

091472 

2' 

DUCT WIRING 1X1. 5  

42 

091472A 

2' 

COVER WIRE DUCT 1 IN 

43 

067989 

NUT HEX  FL WHIZ M8-1.25  

44 

0H7260 

HARNESS 400A 2 PO LE RTS  (NOT SHOWN) 

45 

0H6389 

DECAL, UTILITY LOAD SENSE  240V 

46 

0H7376A 

ASSY  PCB AC LOAD CONTRO LLER 

47 

0H7270 

CHANNEL SNAPTRACK 76.2 X 101. 2 

48 

0H7274 

DECAL 2008 NEC CO MPLI ANCE 

49 

091477 

RIVET, WIRE DUCT MNT 

 

 

 

 

 

(1) ITEMS INCLUDED WITH HARNESS 

 

 

 

 

 

 

 

 

 

Summary of Contents for Nexus smart

Page 1: ...This manual should remain with the unit Technical Manual Nexus Smart Switch...

Page 2: ...system from utility distribution system when the generator is operating Article 701 Legally Required Standby Systems or Article 702 Optional Standby Systems as applicable Failure to isolate electric s...

Page 3: ...and national electrical and building codes When using this equipment comply with regulations the National Electrical Code NEC CSA Standard C22 1 Canadian Electric Code and Occupational Safety and Heal...

Page 4: ...the event of a drop in generator frequency overload Loads to be shed are grouped in 4 priority levels on the LSM Priority 1 and 2 has connections for both one air conditioner and one contactor Both a...

Page 5: ...mensions drawing Handle transfer switches carefully when install ing Do not drop the switch Protect the switch against impact at all times and against con struction grit and metal chips Never install...

Page 6: ...IONS The LSM can control an air conditioner 24 Vac directly or a sepa rate contactor 120 Vac which can control any load connected to it See Figure 2 2 2 5 1 SEQUENCE OF OPERATION The 4 green status LE...

Page 7: ...ormally Open Open Closed Common to Normally Closed Closed Open NOTE Auxiliary Contacts are rated 10 amps at 125 or 250 volts AC DO NOT EXCEED THE RATED VOLTAGE AND CURRENT OF THE CONTACTS Figure 2 3 4...

Page 8: ...SOURCE SIDE Before proceeding verify the position of the switch by observing window A in Figure 3 1 on page 6 If window A reads ON the contacts are closed in the normal position no further action is r...

Page 9: ...2 to NEUTRAL 120 123 VAC Failure to do so may result in damage to cer tain rotary equipment 5 When certain that UTILITY supply voltage is correct and compatible with transfer switch ratings turn OFF t...

Page 10: ...etting the AUTO OFF MANUAL switch to its OFF position 7 Move the switch s main contacts back to the UTILITY position For example load connected to utility power supply Refer to Manual Operation Handle...

Page 11: ...9 Interconnection Drawing No 0H7453 C Electrical Data...

Page 12: ...10 Electrical Data Wiring Diagram Schematic Drawing No 0H7257 C...

Page 13: ...11 Wiring Diagram Schematic Drawing No 0H7257 C Electrical Data...

Page 14: ...12 Parts List on page 14 Exploded Views Parts Lists 400A Assembly Drawing No 0H7267 C...

Page 15: ...13 Parts List on page 14 400A Assembly Drawing No 0H7267 C Exploded Views Parts Lists...

Page 16: ...J3806C 1 DECAL DATA XFER SW 23 064101 6 NUT HEX FL WHIZ 3 8 16 24 0F59400ST14 1 SUBPLATE 24 36 ENCL RTS GY4 25 087680 1 NUT WING M6 1 0 26 063378 4 HOLDER CABLE TIE 27 064761 4 TIE WRAP UL 5 6 X 10 NA...

Page 17: ...9 6mm 24 0 917mm 36 1 TRIPLE EKO SUITABLE FOR 1 1 25 1 50 CONDUIT 3 PLACES 254mm 10 0 794mm 31 3 60 8mm 2 4 61 3mm 2 4 487mm 19 2 MOUNTING HOLES 6 35mm 0 25 4 PLACES Installation Diagram Drawing No 0F...

Page 18: ...16 Notes...

Page 19: ...17 Notes...

Page 20: ...Part No 0H7443 Revision C 08 05 11 Printed in U S A...

Page 21: ......

Page 22: ...AL DATA XFERSW 0J3806C 1 DECAL DATA XFERSW 23 064101 6 NUT HEX FL WHIZ 3 8 16 24 0F59400ST14 1 SUBPLATE 24 36 ENCL RTS GY4 25 087680 1 NUT WING M6 1 0 26 063378 4 HOLDER CABLE TIE 27 064761 4 TIE WRAP...

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