Bulletin 1494V Variable Depth, Flange Operated Disconnect Switch Kits for 400 and 600 Amperes (Series A) Switches

Transcription

1 Bulletin 494V Variable Depth, Flange Operated Disconnect Switch Kits for and Amperes (Series A) Switches ATTENTION: To prevent electrical shock, disconnect from power source before installing or servicing. Install in suitable enclosure. Keep free from contaminants. Components Cat No. Description Switch Rating (Amps) 494V-H 494V-R 494V-W 7-/" Painted Metal Handle 7-/" Molded Handle 7-/" Stainless Steel Handle L L L 494V-DS 494V-DS Amp Switch Amp Switch 494V-RB 494V-RB 494V-FS 494V-FS 49-N6 49-R6 Standard Connecting Rod ( per kit) Enclosure Working Depth: 9" to 9-/4" Extended Connecting Rod ( per kit) Enclosure Working Depth: 9" to " Amp Fuse Block Amp Fuse Block (Class J fuses only) A 50V/V Class H A 50V/V Class R 40-N46 40-N45 40-N54 40-N55 Fuse Clip, Class H, J, A - 50V, A - V Fuse Clip, Class H,J, 00A-50V, 00A-V Fuse Clip, Class R, 00A-50V, 00A-V Fuse Clip, Class R, A-50V, A-V 595-A 595-B 595-N 494R-N0 494R-N 494R-N () N.O. Auxiliary Contact () N.C. Auxiliary Contact Auxiliary Contact Adapter Kit Lug Connector: Wire Size () #/0-50 MCM Lug Connector: Wire Size () #/0-50 MCM Lug Connector: Wire Size # MCM 495-N6 Fuse Cover with Door (only for Right-Hand Installation)

2 Handle Installation Locate Handle C B B C A A E E Door Catch Mounting D D Door Catch Mounting Right Hand Flange Left Hand Flange NEMA SIZE A (min) B (min) C (max) D E F G H J K L M A 4 - /6" 9/" - 7/" - 5/8" - 49/64" 6 - /" " 5" 9/6" /" /4" /4" Drill Handle Holes K L A 8 - /6" 9/" - 7/" - 5/8" - 49/64" 6 - /" " 5" 9/6" /" /4" /4" () - /64" Dia. Holes DIMENSIONS NOT SUITABLE FOR 494V-R HANDLE Locate Door Catch Mounting Enclosure Door H J G F Door Catch Mounting 0 lb-in M Enclosure Base Door Catch C Square Corners or /4" R. D Notes: A) Enclosures with a Flange Thickness less than /6" use dimensions above. B) Enclosures with a Flange Thickness /6" and greater use dimensions in Mounting Kit 494V-H6. This kit requires "B" dimension of -7/" min. C) For large enclosure use -/8" "M" dimension, using large enclosure door hardware (494V-L, 494V-LL). D) The door catch mounting bracket is provided with projections for welding; however, holes can be drilled in the bracket using the projections for locating hole centers. After proper location, it may be used as a template and drill corresponding holes in the enclosure door. Fasten the bracket with hardware supplied by user. If properly assembled, the hardware should not be accessible for tampering with by unauthorized personnel. 4 Install Gasket Important: Use grease from grease capsule to keep o-ring seal in handle groove during installation. 5 Install Handle to Flange 6 Install Defeater Lever (Note: After handle is mounted on the enclosure flange.) B 7- lb-in lb-in ()

3 Disconnect Switch Installation Locate Disconnect Switch CC AA GG CC HH HH BB BB DD DD Right Hand Flange Left Hand Flange NEMA SIZE AA BB CC DD GG HH A A - 5/64" 6-5/" 8-7/64" 4 - /" - 5/64" (4) 5/ /64" 6-5/" 8-7/64" 4 - /" - 5/64" (4) 5/6-8 Conversion from Right-Hand Installation to Left-Hand Installation With the disconnect switch in the "OFF" position, (blades visible) loosen and remove the () hex head screws. Remove the drive mechanism from the right-hand side of the disconnect switch. Save the () 5/6-8 hex head screws shown below. Rotate the crossbar assembly to the "ON" position (blades fully engaged - not visible). (Use any convenient adjustable wrench to aid in rotating the crossbar & moveable blades. L L L L L L 4 ATTENTION: Do not attempt to change the position of the drive mechanism after removal from the disconnect assembly. Position the drive mechanism assembly as shown below and install the () 5/6-8 hex head screws. L L L lb-in ()

4 Trailer Fuse Block and Fuse Clip Installation Install Trailer Block Install Fuse Clips Q R Y V AA 40 lb-in Z BB CC X Install Wire Lugs to Terminals S L L L 4 S (4)

5 4 Install Wire to Lugs T L L L 8 lb-in T Q R S T * Switch Fuse Rating Rating Fuse (Amps) (Amps/Volts) Class Trailer Fuse Fuse Fuse Block Fuse Clip Lug to Wire to Fuse Block Clip V X Y Z Block Mtg. Screw Mtg. Screw Terminal Lug Catalog Catalog (inches) (inches) (inches) (inches) Mounting Torque Torque Torque Torque Number Number Screw (lb-ins.) (lb-ins.) (lb-ins.) (lb-ins.) Term Screw or Stud AA (inches) BB (inches) CC (inches) 00A, 50V H 494V-FS 40-N45 /6 6-/4-7/ -5/6 5/ /6 -/6 00A, 50V R 494V-FS 40-N54 /6 6-/4-7/ -5/6 5/ /6 -/6 00A, V H 494V-FS 40-N45 /6 6-/4 4-/ -6/64 5/ A, V R 494V-FS 40-N54 /6 6-/4 4-/ -6/64 5/ A, V J 494V-FS 40-N45 /6 6-/4 9/ -5/6 5/ /- -/6 -/6 A, 50V H 494V-FS 40-N46 /6 6-/4 -/6-5/6 5/ A, 50V R 494V-FS 40-N55 /6 6-/4 -/6-5/6 5/ A, V H 494V-FS 40-N46 /6 6-/4 5-/6-5/6 5/ A, V J 494V-FS 40-N46 /6 6-/4 -/6-5/6 5/ A, V R 494V-FS 40-N55 /6 6-/4 5-/6-5/6 5/ A, 50V H 494V-FS 40-N46 /64 6-/4 -/4-5/6 5/ A, 50V R 494V-FS 40-N55 /64 6-/4 -/4-5/6 5/ A, V H 494V-FS 40-N46 /64 6-/4 4-/4-5/6 5/ A, V J 494V-FS 40-N46 /64 6-/4 -/ -5/6 5/ A, V R 494V-FS 40-N55 /64 6-/4 4-/4-5/6 5/ /- A, 50V H 49-N6 () 5/ A, 50V R 49-R6 () 5/ A, V H 49-N6 () 5/ A, V J 494V-FS () /64 6-/4 4-/ -5/6 5/ A, V R 49-R6 () 5/ * When lug kits 494R-N0 & 494R-N are used. (5)

6 Connecting Rod Installation N Enclosure Working Depth (Flange to Mounting Plate) Connecting "N" Catalog Number Rod Min. Max. Standard 494V-RB 9" 9-/4" Extended 494V-RB 9" " N - " Right Hand Operation Front a) Install connecting rod into the support rod bracket and thread in clockwise (5) full turns b) Install connecting rod into the drive bar mechanism and thread in clockwise (9) full turns a) Place the disconnect handle in the "OFF" position. Attach the end of the connecting rod to the primary link of the handle with two /4-0 x /" slotted head screw assemblies and tighten to 40 lb-in torque. b) Attach the second connecting rod to the top of the spring bracket with two /4-0 x /" slotted head screw assemblies and tighten to 40 lb-in torque. c) Attach the two springs to the mechanism as shown below: Spring Support Rod Drive Mechanism Connecting Link Connecting Rod Adjustment Procedure 4 "ON" Position a) Move disconnect handle to the "ON" position. b) If switch does not fully close, return handle to "OFF" position. c) Loosen and remove the two /4-0 slotted hex head screw assemblies that hold the connecting rod to the connecting link. d) Turn connecting rod counter-clockwise () full turn. e) Re-assemble the two /4-0 hex head assemblies and tighten to 40 lb-in and re-test. f) Repeat 4a - 4e as necessary. 5 "OFF" Position g) Move disconnect handle to the "OFF" position. h) If switch does not fully open, return handle to "ON" position. j) Loosen and remove the two /4-0 slotted hex head screw assemblies that hold the connecting rod to the connecting link. k) Turn connecting rod clockwise () full turn. l) Re-assemble the two /4-0 hex head assemblies and tighten to 40 lb-in and re-test. m) Repeat 5g - 5l as necessary. (6)

7 Left Hand Operation 6 a) Install connecting rod into the support rod bracket and thread in clockwise (5) full turns b) Install connecting rod into the drive bar mechanism and thread in clockwise (9) full turns 7 a) Place the disconnect handle in the "ON" position. Attach the end of the connecting rod to the primary link of the handle with two /4-0 x /" slotted head screw assemblies and tighten to 40 lb-in torque. b) Attach the second connecting rod to the top of the spring bracket with two /4-0 x /" slotted head screw assemblies and tighten to 40 lb-in torque. c) Attach the two springs to the mechanism as shown below: Spring Support Rod Connecting Link Drive Mechanism Connecting Rod Adjustment Procedure 8 "ON" Position a) Move disconnect handle to the "ON" position. b) If switch does not fully close, return handle to "OFF" position. c) Loosen and remove the two /4-0 slotted hex head screw assemblies that hold the connecting rod to the connecting link. d) Turn connecting rod counter-clockwise () full turn. e) Re-assemble the two /4-0 hex head assemblies and tighten to 40 lb-in and re-test. f) Repeat 8a - 8e as necessary. 9 "OFF" Position g) Move disconnect handle to the "OFF" position. h) If switch does not fully open, return handle to "ON" position. j) Loosen and remove the two /4-0 slotted hex head screw assemblies that hold the connecting rod to the connecting link. k) Turn connecting rod clockwise () full turn. l) Re-assemble the two /4-0 hex head assemblies and tighten to 40 lb-in and re-test. m) Repeat 9g - 9l as necessary. Auxiliary Contact Installation Auxiliary Contact Adapter 595-N L L L Auxiliary Contact 595-A, 595-B 40 lb-in (7)

8 Fuse Cover Installation Removal () Printed in U.S.A.